Biology is one of the important components of the MDCAT exam, basically dealing with topics that provide profound insight into the processes of life, organisms, and their interactions. The 11th Class Biology Complete Quiz is designed to assist students in understanding fundamental concepts: cell biology, biological molecules, enzymes, and bioenergetics. This quiz covers the entire 11th-grade syllabus, providing students with a comprehensive tool to prepare for both academic exams and competitive entrance tests like MDCAT.
Important Topics in the 11th Class Biology Test
The 11th Class Biology Complete Quiz entails important topics such as the cell as the basic unit of life, biological molecules and their functions, and enzymatic activities. It also includes MCQs on kingdom classification, cell cycle, transport mechanisms, and bioenergetics—all very important for MDCAT Biology preparation.
The quiz challenges the student to solve MCQs, which test the clarity of concepts and the ability to apply theoretical knowledge in practical scenarios. Such quizzes are useful in developing critical thinking, problem-solving, and time-management skills, all of which are needed to excel in competitive entrance exams.
Quiz for Practice
The MDCAT Quiz for 11th Class Biology serves to cover a complete set of MCQs based on the entire syllabus. It includes questions following the actual pattern of the MDCAT exam and focuses on frequently tested topics such as biological molecules, enzymes, and bioenergetics, along with the diversity of life. Taking these quizzes will provide the student with an opportunity to strengthen their preparation and boost their performance in both the board and competitive exams.
- Test Name: 11th Class Biology Complete Quiz
- Total Questions: 420
- Total Marks: 420
- Time: 210 minutes
Note: Answer of the questions will change randomly each time you start the test, once you are finished, click the View Results button.
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Free Flashcard for Quick Revision
Free flashcards: Students can quickly revise the important terms, definitions, and processes of the 11th Class Biology syllabus. These flashcards are very useful at the last minute of preparation and may help to recall cell structure, enzyme function, and ATP production during an exam. Flashcards are really efficient in enhancing memory retention and making students confident enough to answer any question that comes up in their MDCAT Biology test.
Which blood type has antibodies against A antigens?
Type B
What is the name of the blood vessel that carries blood from the heart to the lungs for oxygenation?
Pulmonary artery
Which component of blood is responsible for forming a temporary plug to stop bleeding?
Platelets
What is the term for the process of red blood cells and plasma being separated from each other?
Centrifugation
Which blood type has antibodies against both A and B antigens?
Type O
What is the name of the valve that prevents the backflow of blood from the aorta to the left ventricle?
Aortic valve
Which component of blood is responsible for transporting hormones, nutrients, and waste products?
Plasma
What is the term for the process of red blood cells binding to oxygen in the lungs?
Oxygenation
Which blood type has neither A nor B antigens on the surface of red blood cells?
Type O
What is the name of the valve that prevents the backflow of blood from the pulmonary artery to the right ventricle?
Pulmonary valve
Which component of blood is responsible for maintaining blood volume and pressure?
Plasma
What is the term for the process of blood cells being destroyed in the spleen and liver?
Hemolysis
Which blood type has both A and B antigens on the surface of red blood cells?
Type AB
What is the name of the blood vessel that carries blood from the digestive organs to the liver?
Hepatic portal vein
Which component of blood is responsible for defending the body against pathogens and foreign invaders?
White blood cells
What is the term for the process of red blood cells being broken down and recycled?
Hemolysis
Which type of blood vessel has the thinnest walls and allows for the exchange of gases and nutrients with tissues?
Capillary
What is the name of the valve that prevents the backflow of blood from the right ventricle to the right atrium?
Tricuspid valve
Which blood vessel carries oxygenated blood from the lungs to the heart?
Pulmonary vein
What is the term for the force exerted by blood against the walls of blood vessels?
Blood pressure
Which component of blood is primarily responsible for transporting carbon dioxide from the tissues to the lungs?
Red blood cells
What is the term for the process of blood clotting to repair damaged blood vessels?
Hemostasis
What is the name of the valve that prevents the backflow of blood from the left ventricle to the left atrium?
Mitral valve
Which blood type is considered the universal recipient?
Type AB
What is the name of the large artery that carries oxygenated blood away from the heart?
Aorta
Which component of blood is responsible for transporting oxygen from the lungs to the tissues?
Red blood cells
What is the term for the process of blood cells moving from the bloodstream into tissue spaces?
Diapedesis
Which hormone regulates the production of red blood cells in response to low oxygen levels?
Erythropoietin
What is the name of the network of vessels that carries lymph throughout the body?
Lymphatic system
Which blood vessel carries deoxygenated blood from the body back to the heart?
Vein
What is the term for the exchange of gases between the blood and the body's cells?
Cellular respiration
Which respiratory disorder is characterized by the enlargement and destruction of the air sacs in the lungs?
Emphysema
What is the name of the thin, moist membrane that covers the surface of the lungs and lines the chest cavity?
Pleura
Which gas is transported in the blood as bicarbonate ions?
Carbon dioxide
What is the term for the volume of air that can be forcefully exhaled after a normal exhalation?
Expiratory reserve volume
Which respiratory disorder is caused by a fungal infection and can affect both the lungs and other organs?
Tuberculosis
What is the name of the condition characterized by the collapse of the bronchi?
Bronchiectasis
Which gas is a waste product of aerobic metabolism and is exhaled from the body?
Carbon dioxide
What is the term for the volume of air that can be forcefully inhaled after a normal inhalation?
Inspiratory reserve volume
Which respiratory disorder is characterized by the inflammation of the pleura, the membrane surrounding the lungs?
Pleurisy
What is the term for the movement of oxygen from the alveoli into the blood?
Oxygenation
Which respiratory disorder is caused by a bacterial infection and is characterized by inflammation of the air sacs in the lungs?
Pneumonia
What is the name of the condition characterized by the collapse of the entire lung?
Pneumothorax
Which respiratory structure connects the larynx to the bronchi?
Trachea
What is the term for the volume of air that remains in the lungs after maximal expiration?
Residual volume
Which respiratory disorder is characterized by the inflammation of the bronchial tubes?
Bronchitis
What is the function of the mucous membrane in the respiratory tract?
Trap and remove particles
Which gas is the primary stimulus for increasing the rate and depth of breathing?
Carbon dioxide
What is the term for the maximum volume of air that can be exhaled after a maximum inhalation?
Forced expiratory volume
Which respiratory disorder is characterized by the accumulation of fluid in the lungs?
Pulmonary edema
What is the name of the condition characterized by abnormally low levels of oxygen in the blood?
Hypoxemia
Which gas diffuses from the blood into the alveoli during expiration?
Carbon dioxide
What is the term for the process of gas exchange between the blood and tissues?
Internal respiration
Which respiratory disorder is caused by long-term exposure to cigarette smoke and leads to the destruction of alveolar walls?
Emphysema
What is the condition characterized by the collapse of one or more sections of the lung?
Atelectasis
Which part of the brain controls the basic rhythm of breathing?
Medulla oblongata
What is the term for the volume of air inspired or expired during normal breathing?
Tidal volume
Which gas is a byproduct of cellular respiration and is transported from tissues to the lungs for exhalation?
Carbon dioxide
What is the name of the sheet of muscle that separates the thoracic and abdominal cavities and aids in breathing?
Diaphragm
What is the term for the process of breathing out air from the lungs?
Exhalation
Which nutrient is the body's main source of energy?
Carbohydrates
What is the term for the process of converting food into usable energy by the body?
Metabolism
Which of the following is NOT an antioxidant?
Vitamin C
What is the primary function of antioxidants in the body?
Protect cells from damage
Which nutrient is important for proper nerve function and muscle contraction?
Potassium
What is the term for the process of converting food into usable energy by the body?
Metabolism
Which of the following is NOT an antioxidant?
Vitamin C
What is the primary function of antioxidants in the body?
Protect cells from damage
Which nutrient is important for proper nerve function and muscle contraction?
Potassium
What is the term for the process of converting food into usable energy by the body?
Metabolism
Which of the following is NOT an antioxidant?
Vitamin C
What is the primary function of antioxidants in the body?
Protect cells from damage
Which nutrient is important for proper nerve function and muscle contraction?
Potassium
What is the term for the complex process by which food is broken down and absorbed by the body?
Digestion
Which of the following is NOT a type of dietary fiber?
Monounsaturated
What is the primary function of fiber in the diet?
Aid digestion
Which nutrient is important for maintaining fluid balance in the body?
Sodium
What is the term for the process by which nutrients are converted into cellular energy?
Cellular respiration
Which of the following is NOT a function of proteins in the body?
Energy production
What is the primary function of proteins in the body?
Build and repair tissues
Which nutrient is essential for strong bones and teeth?
Calcium
What is the term for the breakdown of food molecules to release energy?
Metabolism
Which of the following is NOT a function of water in the body?
Provide energy
What is the primary function of water in the body?
Hydration
Which nutrient is important for the formation of red blood cells and oxygen transport in the body?
Iron
What is the term for the process by which cells take in and use nutrients?
Assimilation
Which of the following is NOT a trace mineral?
Iron
What is the primary function of minerals in the body?
Regulate bodily functions
Which nutrient is essential for proper nerve function and muscle contraction?
Calcium
What is the term for the process by which nutrients are absorbed into the bloodstream from the digestive tract?
Absorption
Which of the following is NOT a component of a nucleotide?
Amino acid
What is the primary function of proteins in living organisms?
Enzyme activity
What is the primary function of lipids in living organisms?
Energy storage
What is the primary pigment involved in photosynthesis?
Chlorophyll
Which of the following is NOT a product of the light-dependent reactions in photosynthesis?
Glucose
What is the primary function of ATP synthase in cellular respiration?
ATP production
Which of the following is NOT a coenzyme?
NADH
What is the primary function of coenzymes in enzyme-catalyzed reactions?
Facilitate enzyme activity
Which of the following is NOT a characteristic of enzymes?
Change in pH affects activity
What is the term for the specific region of an enzyme where the substrate binds?
Active site
Which of the following factors can affect enzyme activity?
Temperature
What is the primary function of enzymes in living organisms?
Catalyze reactions
Which of the following is NOT a nucleic acid?
DNA
What is the primary function of nucleic acids in living organisms?
Genetic material
Which of the following is NOT a component of a nucleotide?
Amino acid
What is the primary function of proteins in living organisms?
Enzyme activity
Which of the following is NOT a type of lipid?
Steroids
What is the primary function of lipids in living organisms?
Energy storage
Which of the following is NOT a monosaccharide?
Sucrose
What is the primary function of carbohydrates in living organisms?
Energy source
Which molecule is commonly referred to as the "building blocks" of carbohydrates?
Glucose
What is the primary pigment involved in photosynthesis?
Chlorophyll
Which of the following is NOT a product of the light-dependent reactions in photosynthesis?
Glucose
What is the primary function of the Calvin cycle in photosynthesis?
Carbon fixation
In photosynthesis, where do the light-dependent reactions take place?
Thylakoid membrane
Which molecule is produced during the light-dependent reactions of photosynthesis?
ATP
What is the primary function of chlorophyll in photosynthesis?
Absorb light energy
Which molecule is the initial substrate for glycolysis?
Glucose
What is the overall equation for aerobic cellular respiration?
Glucose + Oxygen → ATP + Carbon dioxide + Water
Which of the following is a product of the Krebs cycle?
ATP
Which of the following is a characteristic of animals?
Heterotrophic
What is the primary function of nervous tissue in animals?
Communication
Which of the following is NOT a type of symmetry found in animals?
Circular symmetry
What is the term for the external skeleton found in some animals?
Exoskeleton
Which of the following is a characteristic of animals?
Multicellular
What is the primary function of muscle tissue in animals?
Movement
Which of the following is NOT a characteristic of animals?
Cell wall
What is the term for the body plan in which an animal can be divided into mirror image halves along a single plane?
Bilateral symmetry
Which of the following is a characteristic of animals?
Heterotrophic
What is the primary function of epithelial tissue in animals?
Protection
Which of the following is NOT a type of symmetry found in animals?
Circular symmetry
What is the term for the fluid-filled body cavity found in some animals?
Coelom
Which of the following is a characteristic of animals?
Heterotrophic
What is the primary function of nervous tissue in animals?
Communication
Which of the following is NOT a type of symmetry found in animals?
Circular symmetry
What is the term for the external skeleton found in some animals?
Exoskeleton
Which of the following is a characteristic of animals?
Multicellular
What is the primary function of muscle tissue in animals?
Movement
Which of the following is NOT a characteristic of animals?
Cell wall
What is the term for the body plan in which an animal can be divided into mirror image halves along a single plane?
Bilateral symmetry
Which of the following is a characteristic of animals?
Heterotrophic
What is the primary function of epithelial tissue in animals?
Protection
Which of the following is NOT a type of symmetry found in animals?
Circular symmetry
What is the term for the fluid-filled body cavity found in some animals?
Coelom
Which of the following is a characteristic of animals?
Heterotrophic
What is the primary function of nervous tissue in animals?
Communication
Which of the following is NOT a type of symmetry found in animals?
Circular symmetry
What is the term for the external skeleton found in some animals?
Exoskeleton
Which of the following is a characteristic of animals?
Multicellular
What is the primary function of muscle tissue in animals?
Movement
Which of the following is NOT a characteristic of plants?
Unicellular
What is the primary function of leaves in plants?
Photosynthesis
Which of the following is NOT a plant organ?
Stamen
What is the term for the specialized cells that allow plants to absorb water and nutrients from the soil?
Roots
Which of the following is NOT a characteristic of plants?
Autotrophic
What is the primary function of leaves in plants?
Photosynthesis
Which of the following is NOT a type of plant tissue?
Muscle tissue
What is the term for the male reproductive structure of a flower?
Stamen
Which of the following is NOT a characteristic of plants?
Unicellular
What is the primary function of stems in plants?
Support
Which of the following is NOT a plant organ?
Ovary
What is the term for the protective outer layer of plant cells?
Dermal tissue
Which of the following is a characteristic of plants?
Autotrophic
What is the primary function of roots in plants?
Absorb water and nutrients
Which of the following is NOT a type of plant tissue?
Muscle tissue
What is the term for the reproductive structure of a flower?
Stamen
Which of the following is NOT a characteristic of plants?
Unicellular
What is the primary function of leaves in plants?
Photosynthesis
Which of the following is NOT a plant organ?
Stamen
What is the term for the specialized cells that allow plants to absorb water and nutrients from the soil?
Roots
Which of the following is NOT a characteristic of plants?
Autotrophic
What is the primary function of leaves in plants?
Photosynthesis
Which of the following is NOT a type of plant tissue?
Muscle tissue
What is the term for the male reproductive structure of a flower?
Stamen
Which of the following is NOT a characteristic of plants?
Unicellular
What is the primary function of stems in plants?
Support
Which of the following is NOT a plant organ?
Ovary
What is the term for the protective outer layer of plant cells?
Dermal tissue
Which of the following is a characteristic of plants?
Autotrophic
What is the primary function of roots in plants?
Absorb water and nutrients
What is the primary function of the gills in mushrooms?
Spore release
What is the primary function of the gills in mushrooms?
Spore release
Which of the following is NOT a method of fungal reproduction?
Plasmogamy
What is the term for the structure that produces asexual spores in some fungi?
Conidiophore
Which of the following is a characteristic of fungi?
Absorb nutrients from surroundings
What is the term for the hyphal fusion that occurs during sexual reproduction in fungi?
Plasmogamy
Which of the following is NOT a characteristic of fungi?
Photosynthetic
What is the primary function of sporangia in fungi?
Spore production
Which of the following is NOT a method of fungal nutrition?
Phagocytosis
What is the term for the vegetative body of a fungus?
Mycelium
Which of the following is a characteristic of fungal cell walls?
Chitin
What is the primary function of the gills in mushrooms?
Spore release
Which of the following is NOT a method of fungal reproduction?
Plasmogamy
What is the term for the structure that produces asexual spores in some fungi?
Conidiophore
Which of the following is a characteristic of fungi?
Absorb nutrients from surroundings
What is the term for the hyphal fusion that occurs during sexual reproduction in fungi?
Plasmogamy
Which of the following is NOT a characteristic of fungi?
Photosynthetic
What is the primary function of sporangia in fungi?
Spore production
Which of the following is NOT a method of fungal nutrition?
Phagocytosis
What is the term for the vegetative body of a fungus?
Mycelium
Which of the following is a characteristic of fungal cell walls?
Chitin
What is the primary function of the stipe in fungi?
Support
Which of the following is NOT a method of fungal reproduction?
Conjugation
What is the term for the cluster of spores at the tip of a sporangiophore in certain fungi?
Sporangium
Which of the following is a characteristic of fungi?
Absorb nutrients from surroundings
What is the term for the sexual reproductive structure of fungi?
Sporangium
Which of the following is NOT a characteristic of fungi?
Autotrophic
What is the primary function of rhizoids in fungi?
Anchorage
Which of the following is NOT a method of fungal nutrition?
Photosynthesis
What is the term for the underground network of hyphae in fungi?
Mycelium
What is the term for the hair-like structures some protists use for movement?
Cilia
What is the primary characteristic of organisms in Kingdom Protista?
Eukaryotic
What is the term for the process by which some protists exchange genetic material through direct contact?
Conjugation
Which of the following is NOT a characteristic of protists?
Multicellular
What is the primary function of pseudopodia in some protists?
Locomotion
Which of the following is NOT a characteristic of protists?
Prokaryotic
What is the term for the process by which some protists produce offspring through asexual reproduction?
Binary fission
Which of the following is NOT a characteristic of protists?
Multicellular
What is the primary function of the pellicle in some protists?
Structural support
Which of the following is NOT a type of protist locomotion?
Symbiosis
What is the term for the process by which some protists absorb dissolved nutrients from their environment?
Osmosis
Which of the following is NOT a characteristic of protists?
Prokaryotic
What is the primary function of the eyespot in some photosynthetic protists?
Detecting light
Which of the following is NOT a characteristic of protists?
Multicellular
What is the term for the process by which some protists engulf food particles?
Phagocytosis
Which of the following is NOT a characteristic of protists?
Prokaryotic
What is the primary function of the contractile vacuole in some protists?
Water regulation
Which of the following is NOT a type of protist locomotion?
Symbiosis
What is the term for the process by which some protists exchange genetic material through direct contact?
Conjugation
Which of the following is NOT a characteristic of protists?
Multicellular
What is the primary function of pseudopodia in some protists?
Locomotion
Which of the following is NOT a characteristic of protists?
Prokaryotic
What is the term for the process by which some protists produce offspring through asexual reproduction?
Binary fission
Which of the following is NOT a characteristic of protists?
Multicellular
What is the primary function of the pellicle in some protists?
Structural support
Which of the following is NOT a type of protist locomotion?
Symbiosis
What is the term for the process by which some protists absorb dissolved nutrients from their environment?
Osmosis
Which of the following is NOT a characteristic of protists?
Prokaryotic
What is the primary function of the eyespot in some photosynthetic protists?
Detecting light
Which of the following is NOT a characteristic of protists?
Multicellular
Which of the following is NOT a function of the prokaryotic plasma membrane?
Energy production
What is the term for the movement of prokaryotic cells in response to chemical gradients?
Chemotaxis
Which of the following is a characteristic of prokaryotic cell walls?
Peptidoglycan
What is the term for the process by which prokaryotic cells transfer genetic material using a virus?
Transduction
Which of the following is NOT a structure found in prokaryotic cells?
Nucleus
What is the term for prokaryotic cells that form pairs or chains?
Diplococci
Which of the following is NOT a characteristic of prokaryotic flagella?
Composed of microtubules
What is the term for the movement of prokaryotic cells toward or away from a stimulus?
Taxis
Which of the following is NOT a characteristic of prokaryotic genetic material?
Linear DNA
What is the term for the process by which prokaryotic cells exchange genetic material through direct contact?
Conjugation
Which of the following structures is responsible for transferring genetic material between prokaryotic cells during conjugation?
Conjugation pilus
What is the term for the region of a prokaryotic cell where genetic material is found?
Nucleoid
Which of the following is a characteristic of prokaryotic ribosomes?
Smaller size
What is the term for the process by which prokaryotic cells take up DNA from their environment?
Transformation
Which of the following is a characteristic of prokaryotic cell membranes?
Phospholipid bilayer
What is the term for the hair-like structures that some prokaryotic cells use for attachment and locomotion?
Pili
Which of the following is NOT a characteristic of prokaryotic cells?
Multicellularity
What is the primary function of the cytoplasm in prokaryotic cells?
Site of cellular metabolism
Which of the following is NOT a function of the prokaryotic cell wall?
Energy production
What is the term for the rigid layer that surrounds the plasma membrane in prokaryotic cells?
Cell wall
Which of the following structures is responsible for exchanging genetic material between prokaryotic cells?
Conjugation pilus
What is the term for the genetic material of prokaryotic cells?
Nucleoid
Which of the following is a function of the capsule in prokaryotic cells?
Protection
What is the term for the protective outer layer found in some prokaryotic cells?
Capsule
Which of the following is NOT a characteristic of prokaryotic cell walls?
Peptidoglycan
What is the primary function of pili in prokaryotic cells?
Adhesion to surfaces
Which of the following structures allows prokaryotic cells to adhere to surfaces?
Pili
What is the term for prokaryotic cells that form chains or clusters?
Streptococci
Which of the following is NOT a type of prokaryotic cell shape?
Square
What is the term for small, circular DNA molecules found in some prokaryotic cells?
Plasmids
Which kingdom includes multicellular organisms that lack cell walls and obtain energy by ingesting other organisms?
Animalia
What is the term for the branch of biology that deals with the classification of organisms?
Taxonomy
Which domain includes unicellular organisms with prokaryotic cells that are found in diverse environments?
Bacteria
What is the term for the evolutionary relationships between organisms?
Phylogeny
Which of the following is NOT a characteristic of animals?
Photosynthetic
Which kingdom includes multicellular organisms with cell walls made of cellulose?
Plantae
What is the term for the branch of biology that studies the relationships between organisms and their environments?
Ecology
Which of the following is NOT a characteristic of plants?
Heterotrophic
What is the term for the hierarchical system of organizing and naming organisms?
Taxonomy
Which domain includes unicellular organisms with prokaryotic cells that live in extreme environments?
Archaea
What is the term for the study of the evolutionary history and relationships among organisms?
Phylogenetics
Which of the following is NOT a characteristic of fungi?
Multicellular
Which kingdom includes organisms that are multicellular, heterotrophic, and lack cell walls?
Animalia
What is the term for the classification of organisms based on similarities and differences?
Taxonomy
Which domain includes multicellular organisms with eukaryotic cells that obtain energy through photosynthesis?
Eukarya
What is the term for the science of naming and classifying organisms?
Taxonomy
Which of the following is NOT a characteristic of animals?
Photosynthetic
Which kingdom includes organisms that obtain energy by ingesting other organisms?
Animalia
What is the term for the classification of organisms based on evolutionary relationships?
Phylogenetics
Which domain includes unicellular organisms with prokaryotic cells that live in diverse habitats?
Bacteria
What is the term for the practice of giving each species a unique scientific name?
Binomial nomenclature
Which of the following is NOT a characteristic of protists?
Multicellular
What is the term for the process of grouping organisms based on shared characteristics?
Classification
Which domain includes unicellular organisms with prokaryotic cells?
Bacteria
What is the term for the branch of biology that deals with the relationships between organisms and their environment?
Ecology
Which kingdom includes unicellular eukaryotic organisms that do not fit into other kingdoms?
Protista
Which of the following is NOT a characteristic of plants?
Heterotrophic
Which kingdom includes unicellular and multicellular organisms that are photosynthetic?
Plantae
What is the term for the evolutionary history of a group of organisms?
Phylogeny
Which domain includes multicellular organisms with complex tissues and organs?
Eukarya
What is the primary function of the cell membrane?
Regulates passage of materials
Which of the following is NOT a function of the cytoplasm?
Protein synthesis
Which of the following organelles is responsible for photosynthesis?
Chloroplast
What is the function of the ribosome in a cell?
Protein synthesis
Which of the following is NOT a function of the cytoskeleton?
DNA synthesis
What is the function of the peroxisome in a cell?
Break down toxic substances
What is the primary function of the nucleolus in a cell?
Ribosome production
What is the function of the rough endoplasmic reticulum in a cell?
Protein synthesis
Which of the following organelles is responsible for lipid synthesis?
Smooth endoplasmic reticulum
What is the function of the cytoskeleton in a cell?
Maintains cell shape
What is the function of the centriole in animal cells?
Organize microtubules
Which of the following structures is found in animal cells but not in plant cells?
Centriole
What is the function of the nucleolus in a cell?
Ribosome production
What is the function of the lysosome in a cell?
Break down waste materials
Which of the following organelles is responsible for cellular respiration?
Mitochondria
What is the function of the cell wall in bacteria?
Provides structural support
What is the primary function of the cell wall in plant cells?
Provides structural support
What is the function of the vacuole in plant cells?
Storage of water and nutrients
Which of the following is NOT a function of the cell membrane?
Energy production
Which of the following structures is found in plant cells but not in animal cells?
Chloroplast
Which organelle is responsible for maintaining cell shape and providing structural support?
Cytoskeleton
What is the function of the mitochondria in a cell?
ATP production
What is the function of the cytoplasm in a cell?
Site of cellular metabolism
Which of the following is NOT a type of endocytosis?
Exocytosis
What is the term for the movement of materials into a cell by engulfing them in a vesicle?
Endocytosis
What is the role of ribosomes in protein synthesis?
Protein assembly
What is the function of the endoplasmic reticulum in a cell?
Protein synthesis and transport
Which organelle is responsible for storing water, ions, and nutrients in plant cells?
Vacuole
What is the function of chloroplasts in plant cells?
Photosynthesis
Which of the following organelles is responsible for breaking down cellular waste and debris?
Lysosome
What is the effect of increasing substrate concentration on enzyme activity in a non-saturated system?
Increases
What is the name of the model that describes enzyme-substrate interactions as induced fit?
Induced fit model
What is the term for the maximum rate of an enzyme-catalyzed reaction?
Vmax (maximum velocity)
What is the name of the model that describes enzyme-substrate interactions as a rigid lock-and-key fit?
Lock and key model
Which of the following is NOT a type of enzyme inhibition?
Activation
What is the effect of increasing substrate concentration on enzyme activity in a saturated system?
No effect
Enzyme activity is typically highest at the ____________ temperature for that enzyme.
Optimal
The rate at which an enzyme catalyzes a reaction can be affected by ____________.
pH
What is the function of coenzymes in enzyme-catalyzed reactions?
Assist enzymes in catalysis
Which of the following is NOT a characteristic of enzyme catalysis?
Enzymes are consumed in the reaction
What is the effect of increasing substrate concentration on enzyme activity in a non-saturated system?
Increases
Which of the following statements about enzyme-substrate complexes is true?
They form temporarily
Enzyme activity is affected by ____________.
pH
What is the term for the substance that inhibits an enzyme by binding to the active site?
Competitive inhibitor
Which of the following is NOT true about enzyme kinetics?
Enzymes are consumed in the reaction
Enzymes lower the activation energy required for a chemical reaction to proceed by ____________.
Providing an alternative pathway
Which of the following is NOT a type of enzyme inhibition?
Feedback inhibition
What is the effect of increasing substrate concentration on enzyme activity in a saturated system?
No effect
Enzymes function by ____________ substrates into products.
Catalyzing
The Michaelis constant (Km) is a measure of the ____________.
Affinity of the enzyme for its substrate
What type of enzyme inhibition occurs when the inhibitor binds to a site other than the active site, altering the enzyme's shape?
Non-competitive
Enzymes can be denatured by ____________.
Extremes of pH
What is the name of the model that describes enzyme-substrate interactions as induced fit?
Induced fit model
What is the term for the maximum rate of an enzyme-catalyzed reaction?
Vmax (maximum velocity)
Which of the following is NOT true about enzyme-substrate complexes?
They are temporary
The substance upon which an enzyme acts is called the ____________.
Substrate
The rate of an enzyme-catalyzed reaction increases with ____________.
Increasing substrate concentration
Enzymes are specific to their substrates due to ____________.
Shape complementarity
Which of the following is NOT a factor that can denature enzymes?
pH
Enzyme activity is typically highest at the ____________ pH for that enzyme.
Optimal
Which of the following is a function of proteins?
Transport of molecules
Which of the following is NOT a type of lipid?
Glycogen
What is the main function of carbohydrates in living organisms?
Energy source
Which of the following is a function of carbohydrates?
Provide energy
What is the function of enzymes in biological systems?
Catalysts
Which of the following is a function of proteins?
Enzyme catalysis
What is the function of phospholipids in cell membranes?
Form a lipid bilayer
What is the basic structure of a triglyceride?
Glycerol + three fatty acids
Which of the following is NOT a type of lipid?
Cellulose
Which of the following is a disaccharide?
Sucrose
What is the primary function of triglycerides?
Energy storage
Which of the following is a function of lipids?
Insulation
Which of the following is NOT a nucleotide base found in DNA?
Uracil
What is the function of nucleic acids in cells?
Store and transmit genetic information
What is the function of enzymes in biological systems?
Catalyze chemical reactions
Which of the following is a function of proteins?
Transport of molecules
Which of the following is NOT a type of lipid?
Glycogen
What is the main function of carbohydrates in living organisms?
Energy source
Which of the following is a function of carbohydrates?
Provide energy
What is the function of enzymes in biological systems?
Catalysts
Which of the following is a function of proteins?
Enzyme catalysis
What is the function of phospholipids in cell membranes?
Form a lipid bilayer
What is the basic structure of a triglyceride?
Glycerol + three fatty acids
Which of the following is NOT a type of lipid?
Cellulose
Which of the following is a disaccharide?
Sucrose
What is the primary function of triglycerides?
Energy storage
Which of the following is a function of lipids?
Insulation
Which of the following is a function of carbohydrates?
Provide quick energy
Which of the following is NOT a function of nucleic acids?
Energy storage
What is the sugar component of RNA molecules?
Ribose
The study of the structure, function, and behavior of living organisms is called ____________.
Biology
What is the function of the vacuole in plant cells?
Storage of water and nutrients
Which of the following is NOT a function of the cytoskeleton?
DNA synthesis
The process by which cells specialize to perform specific functions is called ____________.
Differentiation
Which organelle is responsible for detoxifying harmful substances in a cell?
Smooth endoplasmic reticulum
What is the role of enzymes in biological reactions?
Catalysts
Which of the following is a characteristic of prokaryotic cells?
Lack of membrane-bound organelles
What is the primary function of DNA in cells?
Stores genetic information
What is the function of chlorophyll in chloroplasts?
Captures light energy
Which of the following is NOT a function of proteins in living organisms?
Energy storage
The movement of water across a semipermeable membrane is called ____________.
Osmosis
What is the function of the cell wall in plant cells?
Provides structural support
Which of the following is a polysaccharide found in plant cell walls?
Cellulose
Which of the following is NOT a type of RNA?
DNA
The process by which cells grow and develop is called ____________.
Cell division
Which of the following is NOT a component of the cell membrane?
Nucleus
What is the function of the nucleus in a cell?
Contains genetic material
Which scientist is credited with the discovery of the structure of DNA?
James Watson
What is the function of the mitochondria in a cell?
ATP production
The process by which cells take in nutrients from their environment is called ____________.
Endocytosis
Which of the following is an example of a unicellular organism?
Amoeba
Which of the following is NOT a characteristic of eukaryotic cells?
Lack of nucleus
The process by which cells break down glucose to release energy is called ____________.
Cellular respiration
What is the energy currency of the cell?
ATP (Adenosine triphosphate)
What is the function of the endoplasmic reticulum in a cell?
Protein synthesis and transport
Which organelle is responsible for protein synthesis in a cell?
Ribosome
Which of the following is NOT a kingdom in the classification of living organisms?
Rodentia
The basic unit of structure and function in living organisms is the ___________.
Cell
Which of the following is an example of a prokaryotic cell?
Bacteria
What is the function of lysosomes in a cell?
Break down waste materials
