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11th Class Biology Chapter 6 MCQs with Answers

11th Class Biology Chapter 6 MCQs

Prepare for exams with Kingdom Prokaryotae MCQs covering bacteria, archaea, and their roles in ecosystems. These questions delve into prokaryotic cell structure, reproduction, and significance, making Chapter 6 easier to grasp for 11th Class Biology students.

Which of the following characteristics is unique to Kingdom Prokaryotae?
a) Presence of a true nucleus
b) Membrane-bound organelles
c) Prokaryotic cells
d) Multicellularity

Answer
c) Prokaryotic cells

Kingdom Prokaryotae includes organisms that are primarily classified as .
a) Plants
b) Animals
c) Fungi
d) Bacteria and blue-green algae (cyanobacteri
a)

Answer
d) Bacteria and blue-green algae (cyanobacteri

Which of the following is a distinguishing feature of prokaryotic cells?
a) Presence of a nucleus
b) Membrane-bound organelles
c) Cell wall
d) DNA replication

Answer
b) Membrane-bound organelles

The cell wall of Kingdom Prokaryotae is composed of .
a) Cellulose
b) Chitin
c) Peptidoglycan
d) Lignin

Answer
c) Peptidoglycan

Kingdom Prokaryotae includes both autotrophic and heterotrophic organisms. Which of the following is an example of an autotrophic prokaryote?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Bacillus anthracis
d) Cyanobacteria (blue-green algae)

Answer
d) Cyanobacteria (blue-green algae)

The genetic material in prokaryotic cells is found in the .
a) Nucleus
b) Nucleolus
c) Cytoplasm
d) Mitochondria

Answer
c) Cytoplasm

Which of the following is a common method of reproduction in prokaryotic cells?
a) Binary fission
b) Meiosis
c) Mitosis
d) Budding

Answer
a) Binary fission

Kingdom Prokaryotae includes organisms that are classified as .
a) Unicellular only
b) Multicellular only
c) Both unicellular and multicellular
d) None of the above

Answer
a) Unicellular only

Which of the following is an example of a prokaryotic organism that can cause food poisoning?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Bacillus anthracis
d) Cyanobacteria (blue-green algae)

Answer
a) Escherichia coli (E. coli)

The mode of nutrition in prokaryotes can be .
a) Autotrophic only
b) Heterotrophic only
c) Both autotrophic and heterotrophic
d) None of the above

Answer
c) Both autotrophic and heterotrophic

Kingdom Prokaryotae includes the domain .
a) Archaea
b) Eukarya
c) Protista
d) Animalia

Answer
a) Archaea

Which of the following is an example of a prokaryotic organism that plays a crucial role in nitrogen fixation?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Rhizobium
d) Cyanobacteria (blue-green algae)

Answer
c) Rhizobium

The cell membrane of prokaryotic cells is made up of .
a) Phospholipids and proteins
b) Cellulose and proteins
c) Peptidoglycan and lipids
d) Chitin and lipids

Answer
a) Phospholipids and proteins

Which of the following is an example of a prokaryotic organism that is commonly used in the fermentation of milk to produce yogurt and cheese?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Lactobacillus bulgaricus
d) Cyanobacteria (blue-green algae)

Answer
c) Lactobacillus bulgaricus

The process by which prokaryotes exchange genetic material through direct contact is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
a) Conjugation

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Bacillus subtilis
d) Cyanobacteria (blue-green algae)

Answer
c) Bacillus subtilis

Kingdom Prokaryotae includes organisms that are found in various habitats such as
.
a) Land and air only
b) Water only
c) Land, air, and water
d) None of the above

Answer
c) Land, air, and water

The structure that some prokaryotes possess for protection during unfavorable conditions is called .
a) Nucleus
b) Cell wall
c) Spore
d) Flagella

Answer
c) Spore

Which of the following is an example of a prokaryotic organism that is commonly used in the bioremediation of environmental pollutants?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Pseudomonas aeruginosa
d) Cyanobacteria (blue-green algae)

Answer
c) Pseudomonas aeruginosa

The prokaryotic organisms that can survive extreme conditions such as high temperature and acidity are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
a) Archaea

Which of the following is an example of a prokaryotic organism that is commonly used in the production of vinegar?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Acetobacter aceti
d) Cyanobacteria (blue-green algae)

Answer
c) Acetobacter aceti

The prokaryotic organisms that can survive in extreme environments such as hot springs and deep-sea vents are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
a) Archaea

Which of the following is an example of a prokaryotic organism that can carry out photosynthesis?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Anabaena
d) Cyanobacteria (blue-green algae)

Answer
c) Anabaena

The prokaryotic organisms that are commonly found in the human intestines and play a role in digestion are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that can convert atmospheric nitrogen into a usable form for plants in the soil?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Azotobacter
d) Cyanobacteria (blue-green algae)

Answer
c) Azotobacter

The process by which prokaryotic cells take up free DNA molecules from their surroundings and incorporate them into their own genome is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
b) Transformation

Which of the following is an example of a prokaryotic organism that is commonly used in the production of bread and beer?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Cyanobacteria (blue-green algae)

Answer
c) Saccharomyces cerevisiae

The mode of nutrition in prokaryotic organisms can be .
a) Autotrophic only
b) Heterotrophic only
c) Both autotrophic and heterotrophic
d) None of the above

Answer
c) Both autotrophic and heterotrophic

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and yogurt?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Lactobacillus bulgaricus
d) Cyanobacteria (blue-green algae)

Answer
c) Lactobacillus bulgaricus

The process by which prokaryotic cells transfer genetic material to other cells through virus-mediated mechanisms is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
c) Transduction

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and insulin?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
d) Escherichia coli (E. coli)

The prokaryotic organisms that can survive in extreme environments such as acidic lakes and hot springs are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
a) Archaea

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and biofuels?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
d) Escherichia coli (E. coli)

The prokaryotic organisms that are commonly found in soil and play a crucial role in nutrient recycling are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and cheese?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Lactobacillus bulgaricus
d) Escherichia coli (E. coli)

Answer
c) Lactobacillus bulgaricus

The process by which prokaryotic cells transfer genetic material to other cells through direct physical contact is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
a) Conjugation

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and vinegar?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Acetobacter aceti
d) Escherichia coli (E. coli)

Answer
c) Acetobacter aceti

The prokaryotic organisms that are commonly found in the human digestive system and play a role in digestion are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of yogurt and biofuels?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Lactobacillus bulgaricus

Answer
d) Lactobacillus bulgaricus

The process by which prokaryotic cells divide into two identical daughter cells is called
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
d) Binary fission

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and bread?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
c) Saccharomyces cerevisiae

The prokaryotic organisms that are commonly found in aquatic environments and play a crucial role in oxygen production are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and biofuels?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
d) Escherichia coli (E. coli)

The prokaryotic organisms that are commonly found in the human mouth and play a role in dental plaque formation are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and vinegar?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Acetobacter aceti
d) Escherichia coli (E. coli)

Answer
c) Acetobacter aceti

The process by which prokaryotic cells take up DNA fragments from their surroundings and incorporate them into their own genome is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
b) Transformation

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and cheese?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Lactobacillus bulgaricus
d) Escherichia coli (E. coli)

Answer
c) Lactobacillus bulgaricus

The prokaryotic organisms that can survive in extreme environments such as acidic lakes and hot springs are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
a) Archaea

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and biofuels?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
d) Escherichia coli (E. coli)

The prokaryotic organisms that are commonly found in soil and play a crucial role in nutrient recycling are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and vinegar?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Acetobacter aceti
d) Escherichia coli (E. coli)

Answer
c) Acetobacter aceti

The prokaryotic organisms that are commonly found in the human digestive system and play a role in digestion are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of yogurt and biofuels?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Lactobacillus bulgaricus

Answer
d) Lactobacillus bulgaricus

The process by which prokaryotic cells transfer genetic material to other cells through direct physical contact is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
a) Conjugation

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and bread?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
c) Saccharomyces cerevisiae

The prokaryotic organisms that are commonly found in aquatic environments and play a crucial role in oxygen production are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and biofuels?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Saccharomyces cerevisiae
d) Escherichia coli (E. coli)

Answer
d) Escherichia coli (E. coli)

The prokaryotic organisms that are commonly found in the human mouth and play a role in dental plaque formation are classified under the domain .
a) Archaea
b) Bacteria
c) Eukarya
d) Protista

Answer
b) Bacteria

Which of the following is an example of a prokaryotic organism that is commonly used in the production of antibiotics and vinegar?
a) Escherichia coli (E. coli)
b) Streptococcus
c) Acetobacter aceti
d) Escherichia coli (E. coli)

Answer
c) Acetobacter aceti

The process by which prokaryotic cells take up DNA fragments from their surroundings and incorporate them into their own genome is called .
a) Conjugation
b) Transformation
c) Transduction
d) Binary fission

Answer
b) Transformation

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See Also  11th Class Biology Chapter 5 MCQs with Answers
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