NCERT Class 9 Science MCQ | Chapter 3: Tissues in Action
Multiple Choice Questions
1. What is a tissue?
(A) A single cell performing all functions
(B) A group of cells that work together to perform a specific function
(C) A group of organs performing one function
(D) A group of organ systems
Answer: (B)
2. In multicellular organisms, cells of similar type performing similar functions group together to form:
(A) Organs
(B) Tissues
(C) Organ systems
(D) Organisms
Answer: (B)
3. What is the main advantage of division of labour in multicellular organisms?
(A) It decreases the number of cells
(B) It increases the efficiency of the body
(C) It prevents cell division
(D) It makes all cells identical
Answer: (B)
4. Plant tissues are broadly classified into:
(A) Epithelial and connective tissues
(B) Meristematic and permanent tissues
(C) Muscular and nervous tissues
(D) Simple and animal tissues
Answer: (B)
5. Which type of tissue has cells that can divide repeatedly?
(A) Permanent tissue
(B) Meristematic tissue
(C) Sclerenchyma
(D) Epidermis
Answer: (B)
6. Which feature allows meristematic cells to divide repeatedly?
(A) Large vacuoles and thin cytoplasm
(B) Thin walls, dense cytoplasm and a prominent nucleus
(C) Thick lignified walls
(D) Absence of a nucleus
Answer: (B)
7. Which meristem is present at the tips of roots and shoots?
(A) Lateral meristem
(B) Intercalary meristem
(C) Apical meristem
(D) Permanent meristem
Answer: (C)
8. What is the main function of apical meristem?
(A) Increase in girth
(B) Increase in length
(C) Transport food
(D) Protect the plant
Answer: (B)
9. Which meristem increases the girth of stems?
(A) Apical meristem
(B) Intercalary meristem
(C) Lateral meristem
(D) Epidermis
Answer: (C)
10. Which meristem helps grasses regenerate after cutting or grazing?
(A) Apical meristem
(B) Lateral meristem
(C) Intercalary meristem
(D) Sclerenchyma
Answer: (C)
11. What is differentiation of cells?
(A) Division of all cells into two cells
(B) Specialisation of cells to perform specific functions
(C) Movement of water through xylem
(D) Formation of seeds
Answer: (B)
12. Permanent tissues may be classified as:
(A) Simple and complex
(B) Apical and lateral
(C) Voluntary and involuntary
(D) Living and nervous
Answer: (A)
13. Which tissue forms the outermost layer of the plant body?
(A) Epidermis
(B) Xylem
(C) Phloem
(D) Sclerenchyma
Answer: (A)
14. What is the main function of the epidermis?
(A) Transport food
(B) Protect the plant body
(C) Produce hormones
(D) Carry nerve impulses
Answer: (B)
15. The waxy layer of cutin covering epidermal cells is called:
(A) Lignin
(B) Cuticle
(C) Pectin
(D) Cellulose
Answer: (B)
16. Why is a thick cuticle useful for plants living in very dry habitats?
(A) It increases water loss
(B) It reduces water loss
(C) It increases food transport
(D) It increases cell division
Answer: (B)
17. What is the main function of root hairs?
(A) Transport food to leaves
(B) Increase the surface area for absorption of water and minerals
(C) Produce flowers
(D) Protect the stem
Answer: (B)
18. Which structures in leaves help in gaseous exchange and transpiration?
(A) Root hairs
(B) Stomata
(C) Sieve tubes
(D) Vessels
Answer: (B)
19. Transpiration helps in water transportation by creating:
(A) A digestive force
(B) A transpiration pull in xylem
(C) A muscular force
(D) A gravitational force
Answer: (B)
20. Which simple permanent tissue mainly stores food?
(A) Parenchyma
(B) Collenchyma
(C) Sclerenchyma
(D) Xylem
Answer: (A)
21. Which tissue can perform photosynthesis in the green parts of plants?
(A) Parenchyma
(B) Sclerenchyma
(C) Xylem
(D) Epidermis
Answer: (A)
22. In aquatic plants, specialised parenchyma forms air spaces that help the plants:
(A) Absorb minerals
(B) Float
(C) Produce seeds
(D) Transport food
Answer: (B)
23. Which tissue provides support and flexibility to plant parts such as stems and tendrils?
(A) Parenchyma
(B) Collenchyma
(C) Sclerenchyma
(D) Phloem
Answer: (B)
24. The unevenly thickened corners of collenchyma cells are due to deposition of:
(A) Lignin
(B) Pectin
(C) Cutin
(D) Calcium
Answer: (B)
25. Which tissue has thick walls due to deposition of lignin?
(A) Parenchyma
(B) Collenchyma
(C) Sclerenchyma
(D) Epidermis
Answer: (C)
26. Most sclerenchyma cells are:
(A) Living
(B) Dead
(C) Dividing
(D) Photosynthetic
Answer: (B)
27. Sclerenchyma is found in:
(A) Coconut husk and walnut shell
(B) Blood vessels only
(C) Stomach lining
(D) Brain tissue
Answer: (A)
28. Which are the conducting tissues of plants?
(A) Parenchyma and collenchyma
(B) Xylem and phloem
(C) Epidermis and sclerenchyma
(D) Collenchyma and epidermis
Answer: (B)
29. Why are xylem and phloem called complex permanent tissues?
(A) They contain only one type of cell
(B) They are made up of different types of cells working together
(C) They contain only dead cells
(D) They contain only living cells
Answer: (B)
30. What does xylem transport?
(A) Food from leaves
(B) Water and minerals from roots
(C) Hormones only
(D) Oxygen only
Answer: (B)
31. Which is the only living component of xylem mentioned in the chapter?
(A) Tracheids
(B) Vessels
(C) Xylem parenchyma
(D) Xylem fibres
Answer: (C)
32. What is the main function of sieve tubes?
(A) Transport water
(B) Transport food from leaves to other parts of the plant
(C) Provide flexibility
(D) Absorb minerals
Answer: (B)
33. What is the main function of companion cells?
(A) Transport water
(B) Monitor loading and unloading of sugars in sieve tubes
(C) Protect roots
(D) Produce lignin
Answer: (B)
34. Which tissue system forms the outer covering of a plant?
(A) Ground tissue system
(B) Vascular tissue system
(C) Dermal tissue system
(D) Muscular tissue system
Answer: (C)
35. Which tissue system includes parenchyma, collenchyma and sclerenchyma?
(A) Dermal tissue system
(B) Ground tissue system
(C) Vascular tissue system
(D) Nervous tissue system
Answer: (B)
36. Which tissue system consists of xylem and phloem?
(A) Dermal tissue system
(B) Ground tissue system
(C) Vascular tissue system
(D) Epidermal tissue system
Answer: (C)
37. Which four types of tissues are mainly found in animals?
(A) Epidermal, xylem, phloem and muscular
(B) Epithelial, connective, muscular and nervous
(C) Meristematic, epithelial, phloem and nervous
(D) Parenchyma, collenchyma, muscular and nervous
Answer: (B)
38. Which tissue forms the outer covering of the body and lines internal organs?
(A) Connective tissue
(B) Muscular tissue
(C) Epithelial tissue
(D) Nervous tissue
Answer: (C)
39. Why are epithelial cells closely packed with very little space between them?
(A) To prevent entry of germs and reduce water loss
(B) To store large amounts of food
(C) To produce bones
(D) To transmit nerve impulses
Answer: (A)
40. Which epithelial tissue is suited for rapid diffusion of liquids and gases?
(A) A single layer of thin, flat cells
(B) Many layers of cells
(C) Tall pillar-like cells
(D) Hair-like receptor cells
Answer: (A)
41. Which connective tissue gives strength, support and protection?
(A) Cartilage
(B) Bone
(C) Tendon
(D) Ligament
Answer: (B)
42. Which connective tissue provides flexibility and cushions the ends of bones?
(A) Bone
(B) Cartilage
(C) Tendon
(D) Blood
Answer: (B)
43. Which connective tissue connects muscles to bones?
(A) Ligament
(B) Tendon
(C) Cartilage
(D) Blood
Answer: (B)
44. Which connective tissue connects bones to bones and helps prevent excessive movement?
(A) Tendon
(B) Ligament
(C) Cartilage
(D) Muscle
Answer: (B)
45. Which type of muscle is responsible for voluntary movements such as running and writing?
(A) Smooth muscle
(B) Cardiac muscle
(C) Skeletal muscle
(D) Nervous tissue
Answer: (C)
46. Which muscles are found in organs such as the stomach and intestines?
(A) Skeletal muscles
(B) Smooth muscles
(C) Cardiac muscles
(D) Voluntary muscles
Answer: (B)
47. Which muscle is found only in the heart?
(A) Skeletal muscle
(B) Smooth muscle
(C) Cardiac muscle
(D) Voluntary muscle
Answer: (C)
48. Which part of a neuron receives signals from other neurons?
(A) Axon
(B) Dendrites
(C) Axon terminals
(D) Nucleus
Answer: (B)
49. Which joint allows forward, backward, sideways and circular movements?
(A) Hinge joint
(B) Pivot joint
(C) Fixed joint
(D) Ball and socket joint
Answer: (D)
50. Which statement about the musculoskeletal system is correct?
(A) It consists only of muscles
(B) It consists of bones, muscles, joints, cartilage, tendons and ligaments
(C) It functions independently of the nervous system
(D) It only protects internal organs
Answer: (B)
NCERT Class 9 Science MCQ | Chapter 3: Tissues in Action
Assertion–Reason Questions
For each question, choose the correct option:
(A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(C) Assertion is true, but Reason is false.
(D) Assertion is false, but Reason is true.
1. Assertion: Epithelium is well-suited for gas exchange in the lungs.
Reason: It consists of multiple layers of tall cells that slow down diffusion.
Answer: (C) Assertion is true, but Reason is false.
2. Assertion: Cardiac muscle can contract continuously without fatigue.
Reason: Cardiac muscle cells have a high number of mitochondria and an abundant blood supply.
Answer: (A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
3. Assertion: Tendons connect bone to bone and allow joint movement.
Reason: Tendons are made of tough connective tissue that transmits force from muscle to bone.
Answer: (D) Assertion is false, but Reason is true.
4. Assertion: In a hinge joint, movement occurs primarily in one plane.
Reason: The bone ends are shaped to allow sliding in all directions.
Answer: (C) Assertion is true, but Reason is false.
5. Assertion: Intercalary meristem helps grasses regenerate after cutting or grazing.
Reason: Intercalary meristem is present at the base of certain plants such as grasses and contains actively dividing cells.
Answer: (A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
