Structural Organisation in Animals MCQ

Structural Organisation in Animals MCQ Chapter 7 Objective questions NCERT Class 11 Biology 

1. In a unicellular organism, a single cell performs:

  • a. Digestion.
  • b. Respiration.
  • c. Reproduction.
  • d. All.

d. All.
In unicellular organism a single cell perform all life processes

2. Following is/are an example of a simple organism.

  • a. Hydra.
  • b. Planaria.
  • c. Protozoa.
  • d. All.
d. All.

3. The outer layer of our skin consists of which tissue?

  • a. Epithelial tissue.
  • b. Connective tissue.
  • c. Muscular tissue.
  • d. Nervous tissue.
a. Epithelial tissue.

4. The largest organ in the human body is:

  • a. Skin.
  • b. Liver.
  • c. Stomach.
  • d. Heart.

a. Skin.
Integumentary system is the largest organ system of the body and skin is th elargest organ.

5. The lining of a body cavity, duct or a tube comprises of:

  •  a. Simple epithelial cells.
  • b. Compound epithelial cells.
  • c. Adipose cells.
  • d. None.
a. Simple epithelial cells.

6. Simple epithelium tissue consists of:

  • a. Single-layer of cells.
  • b. Only a double layer of cells.
  • c. Triple-layer of cells.
  • d. None.
a. Single-layer of cells.

7. Wall linings of blood vessels and air sacs of lungs are made of which epithelial cells?

  • a. Squamous epithelium.
  • b. Cuboidal epithelium cells.
  • c. Columnar epithelium cells
  • d. None.
a. squamous epithelium.

8. Which type of ciliated epithelial cells makes the lining of the intestine?

  • a. Squamous epithelium.
  • b. Cuboidal epithelium cells.
  • c. Columnar epithelium cells.
  • d. None.
C. Columnar epithelium cells.

9. Goblet cells of the alimentary canal that secrete mucus is a _ _ _ _ _  Glandular epithelium.Structural Organisation in Animals MCQ Chapter 7 Objective questions NCERT Class 11 Biology 

  • a. Unicellular cuboidal.
  • b. Unicellular columnar.
  • c. Multicellular cuboidal.
  • d. Multicellular columnar. 
b. Unicellular columnar.

10. A salivary gland that secretes saliva is a _ _ _ _ _  Glandular epithelium.

  • a. Unicellular cuboidal.
  • b. Unicellular columnar.
  • c. Multicellular cuboidal.
  • d. Multicellular columnar. 
d. Multicellular columnar.

11. Excocrine glands secretions are:

  • a. Ductless hormones.
  • b. Ductous enzymes.
  • c.  Ductless enzymes.
  • d. Ductous hormones.
b. Ductous enzymes.

12. Endocrine glands secretions are:

  • a. Ductless hormones.
  • b. Ductous enzymes.
  • c.  Ductless enzymes.
  • d. Ductous hormones.
a. Ductless hormones.

13. Compound epithelium tissue consists of:

  • a. Single-layer of cells.
  • b. Only a double layer of cells.
  • c. Only triple-layer of cells.
  • d. More than one layer of cells.
d. More than one layer of cells.

14. Compound epithelial cells lines and give protection to:

  • a. Skin.
  • b. Buccal cavity.
  • c. Pharynx.
  • d. All.
d. All.

15. Which of the following is an intercellular junction present in between two epithelial cells?

  • a. Tight junctions.
  • b. Adhering junctions.
  • c. Gap junctions.
  • d. All three.

Structural Organisation in Animals MCQ Chapter 7 Objective questions NCERT Class 11 Biology 

d. All three.

16. The function of “tight junction” is to:

  • a. Prevent leaking intercellular fluid.
  • b. Keep adjoining cells together by cementing them.
  • c. Provide communication by transferring ions and cytoplasm from nearby cells.
  • d. All of the above.
a. Prevent leaking intercellular fluid.

17. The function of “adhering junction” is to:

  • a. Prevent leaking intercellular fluid.
  • b. Keep adjoining cells together by cementing them.
  • c. Provide communication by transferring ions and cytoplasm from nearby cells.
  • d. All of the above.
b. Keep adjoining cells together by cementing them.

18. The function of “gap junction” is to:

  • a. Prevent leaking intercellular fluid.
  • b. Keep adjoining cells together by cementing them.
  • c. Provide communication by transferring ions and cytoplasm from nearby cells.
  • d. All of the above.
c. Provide communication by transferring ions and cytoplasm from nearby cells.

19. Which of the following is an example of connective tissue?

  • a. Cartilage.
  • b. Bones.
  • c. Blood.
  • d. All.
d. All.

20. Connective tissue with no fibres is:

  • a. Areolar tissue.
  • b. Adipose tissue.
  • c. Blood.
  • d. Bones.

c. Blood.
All cells in connective tissue secrete fibers in intercellular space except blood cells.

21. Specialised connective tissue which stores fat is:

  • a. Areolar tissue.
  • b. Adipose tissue.
  • c. Blood.
  • d. Bones.
b. Adipose tissue.

22. Fluid connective tissue among these is:

  • a. Areolar tissue.
  • b. Adipose tissue.
  • c. Blood.
  • d. Bones.
c. Blood.

23. Which type of muscular tissue is voluntary in action (responsible for Movement and locomotion):

  • a. Skeletal.
  • b. Smooth.
  • c. Cardiac.
  • d. All three.
a. Skeletal.

24. Strongest muscles in a human body is at:

  • a. Jaws.
  • b. Wrist.
  • c. Shoulder.
  • d. Hip.

d. Hip.
Gluteus maxiumus of hip region is the strongest myscle in a human body.

25. Muscles in interal organs like blood vessels, stomach and instestine consist of which tissue?

  • a. Skeletal.
  • b. Smooth.
  • c. Cardiac.
  • d. All three.
b. Smooth.

26. Cardiac muscles in heart contract and relaxes at the same time due to:

  • a. Tight junctions.
  • b. Adhering junctions.
  • c. Gap junctions as intercalated discs.
  • d. All three.
c. Gap junctions as intercalated discs.

1. d. All. 2. d. All. 3. a. Epithelial tissue. 4. a. Skin. 5. a. Simple epithelial cells. 6. a. Single-layer of cells. 7. a. Squamous epithelium. 8. c. Columnar epithelium cells. 9. b.Unicellular columnar.10. d. Multicellular columnar. 11. b. Ductous enzymes. 12. a. Ductless hormones. 13. d. More than one layer of cells. 14. d. All. 15. d. All three. 16. a. Prevent leaking intercellular fluid. 17. b. Keep adjoining cells together by cementing them. 18. c. Provide communication by transferring ions and cytoplasm from nearby cells. 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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Structural Organisation in Animals MCQ Chapter 7 Objective questions NCERT Class 11 Biology 

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Ref: Chapter 7, NCERT.

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