Cell The Unit of Life MCQ

Cell The Unit of Life MCQ Biology Class 11 / Objective question Chapter 8

1. Who gave cell theory?

  • a. Schleiden and Schwann.
  • b. Rudolf Virchow.
  • c. Watson and crick.
  • d. Leeuwenhoek
a. Schleiden and Schwann.

2. Cell theory explains that:

  • a. Every organism consist of small units ‘cell’.
  • b. New cells form from pre-existing cells.
  • c. Cells are independent from each other.
  • d. None.
a. Every organism consist of small units ‘cell’.

3. _ _ _ _ _ told first thay new cells arise from pre-existing cells (“Omnis cellula-e cellula).

  • a. Schleiden and Schwann.
  • b. Rudolf Virchow.
  • c. Watson and crick.
  • d. Leeuwenhoek
b. Rudolf Virchow
Cell theory says that every organism consist of cells but does not give the reason that from where cells came. Virchow modified the cell theory and told that new cells arise from pre-existing cells.

4. The largest isolated single cell is that of:

  • a. Cyanobacteria.
  • b. An amoeba.
  • c. An egg of an ostrich.
  • d. A human nerve cell.
c. An egg of ostrich.

5. Which organism among these do not have a cell wall.

  • a. Bacteria.
  • b. Fungus.
  • c. Plant.
  • d. Animals.
d. Animals.

6. Which among these is the smallest in size?

  • a. A eukaryotic cell.
  • b. A typical bacterial cell.
  • c. A pleuro pneumonia-like cell.
  • d. A viral cell.
Cell The Unit of Life MCQ Biology Class 11 / Objective question Chapter 8
Size comparison of various cells.
d. A viral cell.

7. Ribosome of prokaryotic cells are:

  • a. 60s and 40s.
  • b. 70s and 3os.
  • c. 50s and 30s.
  • d. None.
c. 50s and 30s.

8. Ribosome of eukaryotic cells are:

  • a. 60s and 40s.
  • b. 70s and 3os.
  • c. 50s and 30s.
  • d. None.
a. 60s and 40s.

9. In the prokaryotic cell, the nucleus is

  • a. Primitive type.
  • b. Complex.
  • c. Double membraned.
  • d. None.
a. Primitive type.

10. Which of the following is not a eukaryote?

  • a. Protists.
  • b. Plants.
  • c. Animals.
  • d. Cyanobacteria.
d. Cyanobacteria.

11. Unlike of plant cells, animal cells have a centriole and a  _ _ _ _ vacuole and

  • a. Small.
  • b. Large.
  • c. No vacuole.
  • d. None.
a. Small.

12. Which of the following do not have cell wall in their cells?

  • a. Bacterium.
  • b. Plant.
  • c. Fungi.
  • d. Animals.
d. Animals.

13. Membrane bound organelle is absent in:

  • a. Prokaryotes.
  • b. Plant cells.
  • c. Animal cells.
  • d. All three.
a. Prokaryotes.

14. Cell membrane in animal cell comprise of:

  • a. Protein bilayer.
  • b. Phospholipid bilayer.
  • c. Phospholip trilayer.
  • d. None.
b. Phospholipid bilayer.

15. Lipid and neutral molecules can move in and out of an animal cell through:

  • a. Passive diffusion.
  • b. Osmosis.
  • c. Active transport.
  • d. Co-transport.
a. Passive diffusion.

16. A cell wall is a _ _ _ _ structure.

  • a. Semipermeable.
  • b. Selectively permeable.
  • c. Impermeable.
  • d. None.
a. Semipermeable.

17. Which of the folloing is not a part of endomembrane system?

  • a. Chloroplast, Mitochondria, peroxisomes.
  • b. Golgi bodies.
  • c. Ribosome, SER.
  • d. RER.
a. Chloroplast, Mitochondria, peroxisomes.
functions of chloroplast, mitochondria and peroxisomes are not coordinated. So they donot fall into endomemrane system. They have own DNA and work independently

18. WHich of the folling is the major site for lipid synthesis?

  • a. Smooth endoplasmic reticulum.
  • b. Rough endoplasmic reticulum.
  • c. Golgi body.
  • d. Peroxisome.
a. Smooth endoplasmic reticulum.

1. a. Schleiden and Schwann. 2. a. Every organism consist of small units ‘cell’. 3. b. Rudolf Virchow. 4. c. An egg of an ostrich. 5. d. Animals. 6. d. A viral cell. 7. c. 50s and 30s. 8. a. 60s and 40s. 9. a. Primitive type. 10. d. Cyanobacteria. 11. a. Small. 12. d. Animals. 13. a. Prokaryotes. 14. b. Phospholipid bilayer.  15. a. Passive diffusion.16.a. Semipermeable. 17. a. Chloroplast, Mitochondria, peroxisomes. 18. a. Smooth endoplasmic reticulum. 19. d. All. 20. c. Blood. 21. Adipose tissue. 22. c. Blood. 23. a. Skeletal. 24. d. Hip. 25. Smooth. 26. c. Gap junctions as intercalated discs.

 

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Cell The Unit of Life MCQ Biology Class 11 / Objective question Chapter 8

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Ref: Chapter 7, NCERT.

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