Free Cell Structure and Function MCQs with Answers
2,478 Cell Structure and Function MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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Read the Cell Structure and Function notesFree MDCAT chapter notes with key terms2,478 questions · page 54 of 124
- A. Mitochondria
- B. Chloroplast
- C. Ribosomes
- D. Golgi body
Explanation: Golgi complex is considered as secretory organelle of the cell. Secretory proteins are synthesized on RER, then transferred to Golgi…
Correct answer: Golgi body- A. Nucleus
- B. DNA
- C. Ribosomes
- D. Cell surface membrane
Explanation: The correct answer is the nucleus. It is a hallmark of eukaryotic cells, encapsulating the cell's genetic material within a distinct…
Correct answer: Nucleus- A. 40S
- B. 70S
- C. 65S
- D. 60S
Explanation: Smaller ribosomes (705) are present in prokaryotic cell but larger ribosomes (80S) are present in eukaryotic cells
Correct answer: 70S- A. Nucleoplasm
- B. Cell wall
- C. Protoplasm
- D. None of the above
Explanation: The function of the cell membrane is to form a boundary for the cell. Protoplasm is surrounded by the cell membrane.
Correct answer: Protoplasm- A. Cell wall
- B. Cell membrane
- C. Nucleus
- D. Ribosome
Explanation: The cell wall provides extra strength to the cell, but it is not absolutely necessary. Also, it is not present in all the cells, e.g.
Correct answer: Cell wall- A. Organelles
- B. Tissues
- C. A system
- D. Both A and B
Explanation: The group of cells that perform the same function is called tissue (OPTION B).
Correct answer: Tissues- A. Golgi complex
- B. Lysosomes
- C. Mitochondria
- D. Ribosomes
Explanation: DNA can be found in the mitochondria as they are thought to be primitive bacteria that have infiltrated into the cell.
Correct answer: Mitochondria- A. Rough Endoplasmic Reticulum
- B. Smooth Endoplasmic Reticulum
- C. Liver cells
- D. Lysosome
Explanation: The smooth endoplasmic reticulum is a part of the endoplasmic reticulum which does not possess ribosomes studded on its membrane.
Correct answer: Smooth Endoplasmic Reticulum- A. Robert Hooke ... cell wall
- B. Schlelden and Schwann ... cell theory
- C. Robert Brown... nucleus
- D. Watson and Crick ... DNA model
- E. Virchow... Mosaic model of plasma membrane
Explanation: The Fluid Mosaic hypothesis was formulated by Singer and Nicolson in the early 1970s, not by Virchow. All others are correctly paired.
Correct answer: Virchow... Mosaic model of plasma membrane- A. Protection of cytoplasm
- B. Regulating the passage of different molecules
- C. Protein synthesis
- D. Cellular communication
- E. Cellular transportation
Explanation: All of these are functions of the cell membrane except protein synthesis, which is solely the purpose of ribosomes..
Correct answer: Protein synthesis- A. Plant cells
- B. Fungal cells
- C. Bacterial cells
- D. Liver cells
Explanation: A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane.
Correct answer: Liver cells- A. Algae
- B. Fungi
- C. Protozoans
- D. Bacteria
Explanation: Eukaryotic cells have mitochondria and chloroplasts as organelles and those organelles additionally have ribosomes 70S.
Correct answer: Bacteria1073. Tissue is a:
- A. Group of cells
- B. Group of organs
- C. Group of tissues
- D. Group of organisms
Explanation: Tissue is a group of cells that have similar structure and that function together as a unit.
Correct answer: Group of cells- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Option D is the only option that makes sense. Suicide sacs are lysosomal enzymes that are membrane bound.
Correct answer: Option D- A. These are small structures which work like oars
- B. It is covered with plasma membrane
- C. It's core is called axoneme
- D. All of the above
Explanation: Cilia and flagella are hair-like outgrowths of the cell membrane. Cilia are small structures working like oars, causing the movement of…
Correct answer: All of the above- A. I only
- B. I&II
- C. II & III
- D. II & IV
- E. III & IV
Explanation: Nucleus is the control centre of the cell and stores the genetic material of the cell,so we say that statements II and IV are correct…
Correct answer: II & IV- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Mitochondria, cytoplasm and nucleus are found in both plant and animal cells.
Correct answer: Option C- A. Schleiden & Schwann
- B. Galileo
- C. Robert Hooke
- D. Robert Brown
Explanation: This is purely factual recall. The cell was first discovered and named by Robert Hooke in 1665.
Correct answer: Robert Hooke- A. Phospholipids
- B. Glycolipids
- C. Proteins
- D. Carbohydrates
Explanation: The correct answer is Proteins. The fibers of the extracellular matrix attach to proteins known as integrins within the plasma membrane.
Correct answer: Proteins- A. Phospholipids
- B. Glycoproteins
- C. Lipoproteins
- D. Nucleoproteins
Explanation: Lipoproteins formed by the combination of lipids and proteins serve as the basic structural framework of all types of membranes in the…
Correct answer: Lipoproteins