Here are some multiple-choice questions (MCQs) related to cell biology:

Here are some multiple-choice questions (MCQs) related to cell biology:

1. What is the basic structural and functional unit of all living organisms?

   a) Atom

   b) Molecule

   c) Cell

   d) Tissue

2. Which organelle is responsible for protein synthesis in a eukaryotic cell?

   a) Golgi apparatus

   b) Mitochondria

   c) Ribosome

   d) Endoplasmic reticulum

3. Which of the following is NOT a type of passive transport in cells?

   a) Diffusion

   b) Osmosis

   c) Active transport

   d) Facilitated diffusion

4. What is the energy currency of a cell?

   a) ATP

   b) DNA

   c) RNA

   d) Glucose

5. Which type of cell lacks a nucleus and membrane-bound organelles?

   a) Prokaryotic

   b) Eukaryotic

   c) Animal

   d) Plant

6. Which cellular process is responsible for breaking down food molecules to produce ATP?

   a) Photosynthesis

   b) Respiration

   c) Digestion

   d) Synthesis

7. Which organelle is involved in detoxifying harmful substances in the cell?

   a) Nucleus

   b) Lysosome

   c) Peroxisome

   d) Chloroplast

8. In which phase of the cell cycle does DNA replication occur?

   a) G1 phase

   b) S phase

   c) G2 phase

   d) M phase

9. Which of the following is NOT a major component of the cell membrane?

   a) Phospholipids

   b) Proteins

   c) Carbohydrates

   d) DNA

10. What is the term for the process by which cells engulf large particles or other cells by wrapping their cell membrane around them?

    a) Endocytosis

    b) Exocytosis

    c) Phagocytosis

    d) Pinocytosis

Answers:

1. c) Cell

2. c) Ribosome

3. c) Active transport

4. a) ATP

5. a) Prokaryotic

6. b) Respiration

7. c) Peroxisome

8. b) S phase

9. d) DNA

10. c) Phagocytosis