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.
Last updated
Read the Cell Structure and Function notesFree MDCAT chapter notes with key terms2,478 questions · page 75 of 124
- A. i, ii, iii, iv, v
- B. v, iv, iii, ii, i
- C. ii, iv, i, iii, v
- D. ii, v, iv, iii, i
Explanation: When someone inherits an abnormal gene associated with the synthesis of the enzyme required for the catabolism of lipids, the person will…
Correct answer: ii, v, iv, iii, i- A. i, ii, iii, iv, v
- B. i, iv, v, iii, ii
- C. v, iv, iii, ii, i
- D. ii, iii, iv, v, i
Explanation: When the gene associated with enzyme synthesis is mutated, the enzyme becomes deficient, and as a result, the metabolic process becomes…
Correct answer: i, iv, v, iii, ii- A. Lysosome
- B. Peroxisome
- C. Glyoxysome
- D. Mesosome
Explanation: Lysosomes are involved in a process called autophagy (self-eating). During this process, some old, worn-out parts of the cell, such as old…
Correct answer: Lysosome- A. Lysosomes
- B. Autophagosomes
- C. Heterophagosomes
- D. Peroxisomes
Explanation: Lysosomes associated with self-eating (autophagy) are called autophagosomes.
Correct answer: Autophagosomes- A. Lysosome
- B. Transport vesicle of endoplasmic reticulum
- C. Golgi vesicle
- D. Autophagosome
Explanation: Pathogens often hijack endocytic pathways such as pinocytosis in order to gain entry into the cell.
Correct answer: Lysosome- A. Cytoskeleton
- B. Exoskeleton
- C. Endoskeleton
- D. Cartilage
Explanation: Actin, myosin, tropomyosin, and other proteins that are part of muscles are also part of the cytoskeleton.
Correct answer: Cytoskeleton- A. Microtubules
- B. Cytosol
- C. Microfilaments
- D. Intermediate filaments
Explanation: Cytosol is the soluble or solution part of the cytoplasm, whereas the cytoskeleton consists of three components, i.e., microtubules…
Correct answer: Cytosol- A. Intermediate filaments
- B. Microtubules
- C. Microfilaments
- D. Cytoskeleton
Explanation: Microfilaments are associated with streaming movement or mass movement of cytoplasm, called cyclosis.
Correct answer: Microfilaments- A. Microfilaments
- B. Cell membrane
- C. Intermediate filaments
- D. Cell wall
Explanation: Intermediate filaments are aggregated on the inner surface of the cell membrane and in the space between the cell membrane and the nucleus…
Correct answer: Intermediate filaments- A. Flagella
- B. Lack of ribosomes
- C. Lack of nucleus
- D. Cytoplasm
Explanation: The distinguishing features of prokaryotic cells is that they lack nucleus and membrane-bound organelles.
Correct answer: Lack of nucleus- A. Nucleolus
- B. Mitochondria
- C. Golgi apparatus
- D. Endoplasmic reticulum
Explanation: The most important function of the Golgi apparatus is the modification of proteins and lipids.
Correct answer: Golgi apparatus- A. Nucleus & mitochondria
- B. Golgi & ER
- C. Chloroplast & mitochondria
- D. Cilia
Explanation: The eukaryotic cell might have evolved when a large anaerobic (living without oxygen) amoeboid prokaryote ingested small aerobic (living…
Correct answer: Chloroplast & mitochondria- A. ER
- B. Golgi bodies
- C. Centrioles
- D. Lysosome
Explanation: The endoplasmic reticulum is often continuous with the plasma membrane and also appears to be in contact with the nuclear membrane when…
Correct answer: ER- A. Chromatid
- B. Chromatin
- C. Centromere
- D. Plasmid
Explanation: A chromatid is one of the two identical halves of the chromosome that has been replicated in preparation for cell division.
Correct answer: Chromatid1495. Nucleus is stained with:
- A. Basic dyes
- B. Neutral dyes
- C. Acidic dyes
- D. Gram stain
Explanation: Nucleus is often deeply stained with basic dyes. This is because of presence of the chromatin material.
Correct answer: Basic dyes- A. Nucleus
- B. Cytoplasm
- C. Golgi bodies
- D. Smooth ER
Explanation: In muscle cells, smooth ER is called sarcoplasmic reticulum. It stores calcium ions that are essential for nerve impulse conduction.
Correct answer: Smooth ER- A. Lysosome
- B. Endoplasmic reticulum
- C. Cisternae
- D. Nucleus
Explanation: The stack of flattened membrane-bounded sacs is called cisternae. Golgi apparatus consists of these stacks.
Correct answer: Cisternae- A. Golgi bodies
- B. Endoplasmic reticulum
- C. Ribosome
- D. Lysosome
Explanation: One of the most important functions of Golgi apparatus is cell secretions.
Correct answer: Golgi bodies- A. Nucleus
- B. Mitochondria
- C. Chloroplast
- D. ER
Explanation: Nucleus contains all the genetic information of the cell. It is called the brain of cell. It controls all the life activites of the cell.
Correct answer: Nucleus- A. Thylakoids
- B. Oxysomes
- C. Cristae
- D. Cisternae
Explanation: Golgi apparatus consists of stacks of flattened membrane-bound sacs called cisternae. Cisternae is the functional unit of Golgi apparatus.
Correct answer: Cisternae