MCQ ON CELL STRUCTURE AND CELL DIVISION
Frequently Asked MCQ on Cell Structure and Cell Division
MCQ QUIZ FOR COMPETITIVE EXAM PREPARATION
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Which organelle is responsible for producing energy in a cell?
A) Nucleus
B) Golgi apparatus
C) Mitochondria
D) Endoplasmic reticulum
Answer: C) Mitochondria
Which structure serves as the control center of the cell and contains the genetic material?
A) Ribosome
B) Golgi apparatus
C) Nucleus
D) Lysosome
Answer: C) Nucleus
Which organelle is responsible for synthesizing proteins in the cell?
A) Nucleus
B) Mitochondria
C) Ribosome
D) Endoplasmic reticulum
Answer: C) Ribosome
What is the function of the Golgi apparatus?
A) Protein synthesis
B) Energy production
C) Packaging and modification of proteins
D) Intracellular digestion
Answer: C) Packaging and modification of proteins
Which organelle contains enzymes responsible for breaking down cellular waste and debris?
A) Mitochondria
B) Lysosome
C) Endoplasmic reticulum
D) Golgi apparatus
Answer: B) Lysosome
What is the function of the endoplasmic reticulum (ER)?
A) Protein synthesis
B) Lipid synthesis
C) Calcium storage
D) Carbohydrate metabolism
Answer: B) Lipid synthesis
Which organelle is responsible for maintaining cell shape, providing structural support, and facilitating cell movement?
A) Microtubules
B) Ribosomes
C) Endoplasmic reticulum
D) Golgi apparatus
Answer: A) Microtubules
What is the function of the cell membrane?
A) Synthesizing proteins
B) Providing structural support
C) Controlling the movement of substances into and out of the cell
D) Storing genetic material
Answer: C) Controlling the movement of substances into and out of the cell
Which organelle is responsible for detoxifying harmful substances in the cell?
A) Golgi apparatus
B) Lysosome
C) Peroxisome
D) Vacuole
Answer: C) Peroxisome
Which structure is responsible for the synthesis and assembly of ribosomal RNA (rRNA)?
A) Nucleolus
B) Mitochondria
C) Chloroplast
D) Endoplasmic reticulum
Answer: A) Nucleolus
What is the process by which a eukaryotic cell divides its nucleus into two, producing two daughter nuclei that are identical to the parent nucleus?
A) Meiosis
B) Mitosis
C) Binary fission
D) Cytokinesis
Answer: B) Mitosis
During which phase of the cell cycle does DNA replication occur?
A) G1 phase
B) S phase
C) G2 phase
D) M phase
Answer: B) S phase
In which phase of mitosis do sister chromatids separate and move towards opposite poles of the cell?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
Answer: C) Anaphase
What is the end result of mitosis?
A) Production of gametes
B) Production of haploid cells
C) Production of four daughter cells
D) Production of two genetically identical daughter cells
Answer: D) Production of two genetically identical daughter cells
Which of the following is NOT a phase of mitosis?
A) Interphase
B) Prophase
C) Metaphase
D) Telophase
Answer: A) Interphase
In which phase of the cell cycle does the cell grow and carry out its normal functions?
A) G1 phase
B) S phase
C) G2 phase
D) M phase
Answer: A) G1 phase
During which phase of mitosis do the nuclear envelope and nucleolus reappear, and the chromosomes begin to decondense?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
Answer: D) Telophase
What is the correct sequence of stages in mitosis?
A) Prophase, Metaphase, Anaphase, Telophase
B) Metaphase, Prophase, Anaphase, Telophase
C) Prophase, Anaphase, Metaphase, Telophase
D) Anaphase, Prophase, Metaphase, Telophase
Answer: A) Prophase, Metaphase, Anaphase, Telophase
Which type of cell division results in the formation of gametes (sperm and egg cells)?
A) Mitosis
B) Meiosis
C) Binary fission
D) Cytokinesis
Answer: B) Meiosis
Cytokinesis typically occurs immediately after which phase of mitosis?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
Answer: D) Telophase
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