Cell – The unit of life MCQs

  1. Who is known as the father of the cell theory?
    a) Louis Pasteur
    b) Robert Hooke
    c) Theodor Schwann
    d) Matthias Schleiden
    ✔️ Answer: b) Robert Hooke
  2. Which of the following is the basic structural and functional unit of life?
    a) Organ
    b) Tissue
    c) Cell
    d) Organism
    ✔️ Answer: c) Cell
  3. Which organelle is known as the powerhouse of the cell?
    a) Nucleus
    b) Chloroplast
    c) Mitochondria
    d) Ribosome
    ✔️ Answer: c) Mitochondria
  4. The plasma membrane is primarily made up of:
    a) Proteins
    b) Lipids and proteins
    c) Carbohydrates
    d) Nucleic acids
    ✔️ Answer: b) Lipids and proteins
  5. Which of the following is found in plant cells but not in animal cells?
    a) Mitochondria
    b) Chloroplast
    c) Endoplasmic reticulum
    d) Ribosome
    ✔️ Answer: b) Chloroplast
  6. Which structure in the cell is responsible for protein synthesis?
    a) Nucleus
    b) Ribosome
    c) Mitochondria
    d) Golgi apparatus
    ✔️ Answer: b) Ribosome
  7. Which part of the cell contains the genetic material?
    a) Cytoplasm
    b) Nucleus
    c) Mitochondria
    d) Endoplasmic reticulum
    ✔️ Answer: b) Nucleus
  8. Which of the following is true about prokaryotic cells?
    a) They have a well-defined nucleus
    b) They lack a nucleus
    c) They have membrane-bound organelles
    d) They have linear DNA
    ✔️ Answer: b) They lack a nucleus
  9. The function of the Golgi apparatus is to:
    a) Synthesize proteins
    b) Produce energy
    c) Package and transport proteins
    d) Store genetic information
    ✔️ Answer: c) Package and transport proteins
  10. Which of the following organelles is involved in the production of ribosomes?
    a) Mitochondria
    b) Nucleolus
    c) Golgi apparatus
    d) Smooth endoplasmic reticulum
    ✔️ Answer: b) Nucleolus
  11. Which of the following is a characteristic feature of eukaryotic cells?
    a) Lack of nucleus
    b) Presence of membrane-bound organelles
    c) Small size
    d) Presence of a single chromosome
    ✔️ Answer: b) Presence of membrane-bound organelles
  12. What is the function of lysosomes in the cell?
    a) Protein synthesis
    b) Energy production
    c) Digestion of waste materials
    d) Transport of materials
    ✔️ Answer: c) Digestion of waste materials
  13. The outermost boundary of the animal cell is called:
    a) Plasma membrane
    b) Nucleus
    c) Cell wall
    d) Cytoplasm
    ✔️ Answer: a) Plasma membrane
  14. What structure controls the movement of substances in and out of the cell?
    a) Mitochondria
    b) Plasma membrane
    c) Cytoplasm
    d) Nucleus
    ✔️ Answer: b) Plasma membrane
  15. What is the function of chloroplasts in plant cells?
    a) Protein synthesis
    b) Storage of food
    c) Photosynthesis
    d) Digestion of waste materials
    ✔️ Answer: c) Photosynthesis