Welcome to the Endoplasmic Reticulum MDCAT MCQs with Answers. In this post, we have shared Endoplasmic Reticulum Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Biology offers a chance to enhance your knowledge regarding Endoplasmic Reticulum MCQs in this MDCAT Online Test.
The endoplasmic reticulum (ER) is involved in:
a) DNA replication
b) Protein synthesis and lipid metabolism
c) Cellular respiration
d) Photosynthesis
Which type of endoplasmic reticulum is studded with ribosomes?
a) Smooth ER
b) Rough ER
c) Golgi apparatus
d) Mitochondria
The smooth endoplasmic reticulum (SER) is primarily involved in:
a) Protein synthesis
b) Lipid synthesis
c) ATP production
d) DNA replication
The rough endoplasmic reticulum (RER) is primarily responsible for:
a) Protein modification and folding
b) Lipid metabolism
c) DNA transcription
d) Cellular respiration
Which of the following is not a function of the endoplasmic reticulum?
a) Synthesis of lipids
b) Protein synthesis
c) Storage of calcium ions
d) Energy production
Which organelle transports proteins to the Golgi apparatus?
a) Mitochondria
b) Smooth ER
c) Rough ER
d) Lysosomes
Which of the following is characteristic of the rough ER?
a) Presence of ribosomes
b) Absence of ribosomes
c) Lipid synthesis
d) Storage of calcium ions
Which type of endoplasmic reticulum is involved in detoxification processes?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Lysosomes
The lumen of the endoplasmic reticulum is:
a) The outer membrane
b) The inner membrane
c) The fluid-filled space inside the ER
d) The space between ER and Golgi apparatus
Where is the endoplasmic reticulum found in the cell?
a) Near the nucleus
b) Near the cell membrane
c) Around the mitochondria
d) In the cytoplasm
Which of the following best describes the structure of the endoplasmic reticulum?
a) Flattened sacs and vesicles
b) Double-membraned organelle
c) Network of membranes and tubules
d) Spherical organelle
Which part of the endoplasmic reticulum is involved in carbohydrate metabolism?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Lysosomes
The primary function of the rough ER is to:
a) Synthesize lipids
b) Synthesize and modify proteins
c) Produce ATP
d) Transport materials within the cell
Which type of endoplasmic reticulum is associated with steroid hormone production?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Lysosomes
Which of the following structures is absent in smooth ER but present in rough ER?
a) Ribosomes
b) Lipid synthesis
c) Protein synthesis
d) Detoxification enzymes
The rough endoplasmic reticulum is responsible for:
a) Lipid metabolism
b) Protein synthesis
c) Carbohydrate synthesis
d) Cellular respiration
The endoplasmic reticulum is continuous with which other cellular structure?
a) Golgi apparatus
b) Nuclear envelope
c) Plasma membrane
d) Mitochondria
Which of the following is a function of the smooth ER?
a) Protein folding
b) Lipid synthesis
c) Ribosome production
d) Cellular respiration
The endoplasmic reticulum can be found in which type of cell?
a) Only animal cells
b) Only plant cells
c) Both plant and animal cells
d) Only bacterial cells
Which of the following is a function of the rough ER?
a) Lipid metabolism
b) Carbohydrate metabolism
c) Protein synthesis
d) Detoxification
The smooth ER is responsible for:
a) Lipid and steroid hormone synthesis
b) Protein modification
c) ATP production
d) Cellular waste disposal
Which structure connects the endoplasmic reticulum to the Golgi apparatus?
a) Ribosomes
b) Vesicles
c) Microtubules
d) Lysosomes
Which of the following is not a component of the endoplasmic reticulum?
a) Ribosomes (in rough ER)
b) Tubules
c) Cristae
d) Cisternae
Which process is associated with the smooth ER?
a) Synthesis of steroid hormones
b) Protein synthesis
c) Ribosome assembly
d) ATP production
The rough endoplasmic reticulum has its ribosomes attached to:
a) The inner membrane
b) The outer membrane
c) The cytoplasm
d) The lumen
Which of the following cellular functions is associated with the endoplasmic reticulum?
a) Cellular respiration
b) Protein and lipid synthesis
c) Photosynthesis
d) Waste digestion
The primary role of the ER in detoxification is performed by:
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Mitochondria
Which of the following is characteristic of the smooth ER?
a) Presence of ribosomes
b) Lipid synthesis
c) Protein synthesis
d) Modification of proteins
Which type of endoplasmic reticulum would be most prominent in a cell specializing in hormone production?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Lysosomes
Which of the following structures is associated with the rough ER?
a) Lysosomes
b) Ribosomes
c) Mitochondria
d) Golgi apparatus
The endoplasmic reticulum is involved in the synthesis of which of the following?
a) Chlorophyll
b) Ribosomal RNA
c) Lipids and proteins
d) DNA
Which structure of the endoplasmic reticulum is involved in modifying proteins?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Mitochondria
Which type of ER would be prevalent in liver cells detoxifying drugs?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Lysosomes
The endoplasmic reticulum helps in the transport of:
a) Cellular wastes
b) Metabolic products
c) Enzymes
d) Genetic material
In which part of the endoplasmic reticulum do the modifications of newly synthesized proteins occur?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Mitochondria
Which of the following does not describe a function of the smooth ER?
a) Lipid synthesis
b) Steroid hormone production
c) Protein synthesis
d) Detoxification of harmful substances
Which part of the endoplasmic reticulum is associated with calcium ion storage?
a) Rough ER
b) Smooth ER
c) Golgi apparatus
d) Lysosomes
The rough endoplasmic reticulum is primarily associated with:
a) Lipid production
b) Steroid synthesis
c) Protein synthesis
d) Detoxification
Which of the following processes does not occur in the endoplasmic reticulum?
a) Lipid synthesis
b) Protein modification
c) Glycolysis
d) Drug detoxification
The endoplasmic reticulum is connected to which other cell structure?
a) Nucleus
b) Mitochondria
c) Ribosomes
d) Lysosomes
Which structure is not part of the endoplasmic reticulum?
a) Cisternae
b) Ribosomes
c) Cristae
d) Tubules
If you are interested to enhance your knowledge regarding Physics, Chemistry, Computer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.
