Class 9 Science Tissues in Action MCQ

Class 9 Science Tissues in Action MCQ

Chapter 3 — Tissues in Action Question Bank

A. MCQs — Choose the Correct Option

1. Which sequence correctly represents the organisation of a multicellular organism?
A. Cells → Organs → Tissues → Organ systems → Organism
B. Cells → Tissues → Organs → Organ systems → Organism
C. Tissues → Cells → Organs → Organism → Organ systems
D. Cells → Organ systems → Tissues → Organs → Organism

2. The main advantage of division of labour among tissues is that it:
A. makes all cells identical
B. prevents cell division
C. increases efficiency in performing complex functions
D. eliminates the need for organs

3. Which meristem is primarily responsible for increase in plant length?
A. Lateral
B. Intercalary
C. Apical
D. Permanent

4. A plant stem increases in diameter because of the activity of:
A. apical meristem
B. lateral meristem
C. intercalary meristem
D. epidermis

5. Grass can regrow after mowing mainly because of:
A. apical meristem
B. lateral meristem
C. intercalary meristem
D. sclerenchyma

6. Which feature is characteristic of meristematic cells?
A. Large vacuoles and thick walls
B. Dense cytoplasm and prominent nucleus
C. Extensive intercellular spaces
D. Complete loss of ability to divide

7. The process by which meristematic cells become specialised is called:
A. transpiration
B. differentiation
C. conduction
D. regeneration

8. Which tissue mainly stores food and may also perform photosynthesis in green parts?
A. Sclerenchyma
B. Collenchyma
C. Parenchyma
D. Epidermis

9. A young stem needs flexibility so that it can bend without breaking. Which tissue is especially suited for this function?
A. Sclerenchyma
B. Collenchyma
C. Xylem
D. Phloem

10. The hardness of sclerenchyma is mainly associated with deposition of:
A. pectin
B. cutin
C. lignin
D. haemoglobin

11. Which tissue contains cells with unevenly thickened corners and provides flexibility?
A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Xylem

12. Which plant tissue transports water and minerals from roots?
A. Phloem
B. Xylem
C. Epidermis
D. Collenchyma

13. Which tissue transports food from leaves to other parts of the plant?
A. Xylem
B. Sclerenchyma
C. Phloem
D. Epidermis

14. Which component is the living component of xylem mentioned in the chapter?
A. Vessel
B. Tracheid
C. Xylem fibre
D. Xylem parenchyma

15. The main function of companion cells is to:
A. transport water through vessels
B. regulate loading and unloading of sugars in sieve tubes
C. provide hardness to seeds
D. absorb water from soil

16. Which structure increases the surface area of roots for absorption?
A. Stomata
B. Root hairs
C. Sieve tubes
D. Cuticle

17. Stomata are important for:
A. only food storage
B. gaseous exchange and transpiration
C. only mechanical support
D. transport of food

18. Which plant tissue system forms the outer covering of the plant?
A. Vascular
B. Ground
C. Dermal
D. Meristematic

19. The ground tissue system includes:
A. only xylem and phloem
B. parenchyma, collenchyma and sclerenchyma
C. only epidermis
D. only meristematic tissues

20. Which tissue system consists of xylem and phloem?
A. Dermal
B. Ground
C. Vascular
D. Epidermal

21. Which animal tissue forms the outer covering and also lines internal organs?
A. Muscular
B. Nervous
C. Epithelial
D. Connective

22. Why is the epithelium lining the lungs thin?
A. To store food
B. To allow rapid exchange of gases
C. To provide maximum mechanical strength
D. To prevent all movement of gases

23. Which epithelial arrangement is best suited for protection from mechanical injury?
A. Single layer of thin cells
B. Many layers with tightly packed outer cells
C. Single layer of tall cells only
D. Loose cells with large spaces

24. The epithelial tissue specialised for absorption in the small intestine consists mainly of:
A. single layer of tall cells
B. many layers of flat cells
C. dead lignified cells
D. branched muscle fibres

25. Which is a connective tissue?
A. Blood
B. Skeletal muscle
C. Nervous tissue
D. Epidermis

26. The difference between the consistency of blood and bone is mainly due to their different:
A. nuclei
B. matrices
C. chromosomes
D. cell walls

27. Which component of blood helps in clotting?
A. RBCs
B. WBCs
C. Platelets
D. Plasma only

28. The red colour of blood is due to:
A. platelets
B. haemoglobin in RBCs
C. plasma
D. WBCs

29. Which connective tissue connects muscle to bone?
A. Ligament
B. Tendon
C. Cartilage
D. Blood

30. Which connective tissue connects bone to bone?
A. Tendon
B. Ligament
C. Cartilage
D. Muscle

31. Which tissue provides flexibility and cushions the ends of bones?
A. Cartilage
B. Sclerenchyma
C. Tendon
D. Blood

32. Which muscle type is responsible for voluntary movements such as writing?
A. Cardiac
B. Smooth
C. Skeletal
D. Epithelial

33. Which muscle is found in organs such as the stomach and intestines?
A. Skeletal
B. Smooth
C. Cardiac
D. Striated voluntary muscle

34. Which muscle tissue is found only in the heart?
A. Skeletal
B. Smooth
C. Cardiac
D. Connective

35. Which muscle has branched fibres and works rhythmically throughout life?
A. Skeletal
B. Smooth
C. Cardiac
D. Collenchyma

36. The cells of nervous tissue are called:
A. nephrons
B. neurons
C. platelets
D. fibres

37. Which part of a neuron receives signals from other neurons?
A. Axon
B. Cell body
C. Dendrites
D. Axon terminal

38. Which part of a neuron carries messages away from the cell body?
A. Dendrite
B. Axon
C. Nucleus
D. Cell membrane

39. Which combination is correctly matched?
A. Tendon — bone to bone
B. Ligament — muscle to bone
C. Xylem — water and minerals
D. Phloem — water only

40. Which joint permits movement of the arm in several directions?
A. Hinge joint
B. Fixed joint
C. Ball-and-socket joint
D. Pivot joint

41. The elbow is an example of a:
A. ball-and-socket joint
B. hinge joint
C. pivot joint
D. fixed joint

42. Side-to-side movement of the head is made possible mainly by a:
A. hinge joint
B. fixed joint
C. pivot joint
D. ball-and-socket joint

43. The bones of the skull are joined mainly by:
A. hinge joints
B. pivot joints
C. fixed joints
D. ball-and-socket joints

44. What transfers the force of a contracting muscle to a bone?
A. Ligament
B. Tendon
C. Cartilage
D. Epidermis

45. Which statement about the rib cage is correct?
A. It consists of 12 single ribs.
B. It protects the heart and lungs and can expand during breathing.
C. It is completely rigid.
D. It is unrelated to breathing movements.

MCQ Answer Key

QAnsQAnsQAns
1B16B31A
2C17B32C
3C18C33B
4B19B34C
5C20C35C
6B21C36B
7B22B37C
8C23B38B
9B24A39C
10C25A40C
11B26B41B
12B27C42C
13C28B43C
14D29B44B
15B30B45B

B. Fill in the Blanks

1. A group of cells working together for a specific function is called a ________.
2. The meristem present at root and shoot tips is called ________ meristem.
3. ________ meristem increases the girth of stems.
4. ________ meristem helps certain plants regenerate after cutting.
5. The process by which cells become specialised is called ________.
6. The outermost protective layer of a plant is the ________.
7. Root hairs increase the surface area for absorption of ________ and minerals.
8. The pores present in leaf epidermis are called ________.
9. ________ mainly stores food and can perform photosynthesis in green plant parts.
10. Collenchyma provides support along with ________.
11. Sclerenchyma becomes hard and strong due to ________ deposition.
12. ________ transports water and minerals from roots.
13. ________ transports food from leaves to other plant parts.
14. Xylem and phloem together form the ________ tissue system.
15. The four main types of animal tissues are epithelial, connective, muscular and ________.
16. ________ help blood to clot.
17. Tendons connect ________ to bones.
18. Ligaments connect ________ to bones.
19. The muscle responsible for voluntary movement is ________ muscle.
20. The muscle found only in the heart is ________ muscle.
21. The specialised cells of nervous tissue are called ________.
22. ________ receive signals from other neurons.
23. A joint allowing movement in many directions is a ________ joint.
24. The elbow is an example of a ________ joint.
25. The skull contains mainly ________ joints.
26. The rib cage consists of ________ pairs of ribs.
27. The ability of certain plant cells to regenerate an entire plant under suitable conditions is called ________.

Answers

  1. Tissue
  2. Apical
  3. Lateral
  4. Intercalary
  5. Differentiation
  6. Epidermis
  7. Water
  8. Stomata
  9. Parenchyma
  10. Flexibility
  11. Lignin
  12. Xylem
  13. Phloem
  14. Vascular
  15. Nervous
  16. Platelets
  17. Muscles
  18. Bones
  19. Skeletal
  20. Cardiac
  21. Neurons
  22. Dendrites
  23. Ball-and-socket
  24. Hinge
  25. Fixed
  26. 12
  27. Totipotency

C. True or False

Write True or False.

  1. A tissue is a group of cells that perform related functions.
  2. Apical meristem increases the girth of the stem.
  3. Lateral meristem occurs in a ring-like arrangement in stems.
  4. Intercalary meristem helps grass regenerate after mowing.
  5. Meristematic cells generally have large vacuoles.
  6. Epidermis protects plants from several environmental stresses.
  7. Root hairs reduce the surface area available for absorption.
  8. Parenchyma may perform photosynthesis in green plant parts.
  9. Collenchyma provides flexibility.
  10. Most sclerenchyma cells are dead.
  11. Xylem transports food from leaves.
  12. Phloem transports food from leaves to other parts.
  13. Epithelial cells are generally closely packed.
  14. Blood is a connective tissue.
  15. Tendons connect bones to bones.
  16. Ligaments connect bones to bones.
  17. Smooth muscles are generally under conscious control.
  18. Cardiac muscle is found only in the heart.
  19. Dendrites receive signals.
  20. A hinge joint permits movement mainly in one direction.
  21. Fixed joints allow free circular movement.
  22. The rib cage protects the heart and lungs.
  23. Totipotency refers to the ability of certain plant cells to regenerate a complete plant under suitable conditions.

Answers

1 T
2 F
3 T
4 T
5 F
6 T
7 F
8 T
9 T
10 T
11 F
12 T
13 T
14 T
15 F
16 T
17 F
18 T
19 T
20 T
21 F
22 T
23 T

D. Match the Following

Set 1

Column AColumn B
1. Apical meristema. Food transport
2. Lateral meristemb. Flexibility
3. Collenchymac. Increase in length
4. Xylemd. Increase in girth
5. Phloeme. Water transport

Answer: 1-c, 2-d, 3-b, 4-e, 5-a

Set 2

Column AColumn B
1. Parenchymaa. Bone to bone
2. Sclerenchymab. Muscle to bone
3. Tendonc. Storage
4. Ligamentd. Strength
5. Cartilagee. Flexibility and cushioning

Answer: 1-c, 2-d, 3-b, 4-a, 5-e

Set 3

Column AColumn B
1. Skeletal musclea. Heart
2. Smooth muscleb. Shoulder
3. Cardiac musclec. Intestine
4. Ball-and-socket jointd. Elbow
5. Hinge jointe. Voluntary movement

Answer: 1-e, 2-c, 3-a, 4-b, 5-d

E. Assertion–Reason Questions

Choose:

A. Both Assertion and Reason are true, and Reason correctly explains Assertion.
B. Both are true, but Reason does not correctly explain Assertion.
C. Assertion is true, but Reason is false.
D. Assertion is false, but Reason is true.

1.
Assertion: Apical meristem increases the length of a plant.
Reason: It is located at the tips of roots and shoots.

2.
Assertion: Collenchyma helps young stems bend without breaking.
Reason: Its cells have unevenly thickened corners.

3.
Assertion: Sclerenchyma provides strong mechanical support.
Reason: Its walls contain lignin.

4.
Assertion: Phloem transports food from leaves.
Reason: Sieve tubes are involved in food transport.

5.
Assertion: The epithelium of lungs is thin.
Reason: A thin layer facilitates rapid exchange of gases.

6.
Assertion: Tendons connect bones to bones.
Reason: Tendons transmit force from muscles to bones.

7.
Assertion: Cardiac muscle can work continuously and rhythmically.
Reason: It is specialised for the continuous activity of the heart.

8.
Assertion: The skull has fixed joints.
Reason: Lack of movement helps protect the brain.

9.
Assertion: Root hairs are useful for absorption.
Reason: They increase the surface area available for absorption.

10.
Assertion: Meristematic cells are closely packed.
Reason: They undergo continuous cell division.

Answers

  1. A
  2. A
  3. A
  4. A
  5. A
  6. D
  7. A
  8. A
  9. A
  10. B

F. Very Short Answer Questions

Answer in one or two sentences.

  1. What is a tissue?
  2. What is division of labour in multicellular organisms?
  3. Name the three types of meristematic tissue.
  4. Which meristem increases stem girth?
  5. What is differentiation?
  6. What is the function of the epidermis?
  7. What is the role of root hairs?
  8. What are stomata?
  9. Give one function of parenchyma.
  10. Why is collenchyma important?
  11. Why is sclerenchyma hard?
  12. Name the components of vascular tissue.
  13. What does xylem transport?
  14. What does phloem transport?
  15. Name the four major animal tissues.
  16. What is the function of epithelial tissue?
  17. Why is blood called a connective tissue?
  18. What is the function of platelets?
  19. What is the function of RBCs?
  20. What is the function of WBCs?
  21. What does a tendon connect?
  22. What does a ligament connect?
  23. What is the function of cartilage?
  24. What is a voluntary movement?
  25. What is an involuntary movement?
  26. Where are smooth muscles found?
  27. Where are cardiac muscles found?
  28. What is the function of nervous tissue?
  29. Name the three main parts of a neuron.
  30. What is a joint?
  31. Give one example of a ball-and-socket joint.
  32. Give one example of a hinge joint.
  33. What type of joint is found between skull bones?
  34. What is the function of the rib cage?
  35. What is totipotency?

G. Short-Answer / 2–3 Mark Questions

1. Explain why plants and animals have different types of tissues.

2. Differentiate between apical, lateral and intercalary meristems.

3. Describe any three characteristics of meristematic cells.

4. What happens when meristematic cells undergo differentiation?

5. Differentiate between parenchyma, collenchyma and sclerenchyma.

6. Explain how the epidermis protects a plant.

7. Why are stomata important to plants?

8. Explain the difference between xylem and phloem.

9. Why are xylem and phloem called complex permanent tissues?

10. Explain how the structure of epithelial tissue is related to its functions.

11. Differentiate between tendon and ligament.

12. Compare bone and cartilage with respect to their matrix and functions.

13. Differentiate between skeletal, smooth and cardiac muscles.

14. Describe the role of neurons in controlling body activities.

15. Explain how muscles and bones work together to produce movement.

16. Why are different types of joints required in the human body?

17. Explain the role of the rib cage in protection and breathing.

18. What is totipotency? How was it demonstrated in the chapter?

H. Case-Based / Application Questions

Case 1 — A Growing Plant

A student observes that the roots of an onion continue to grow when their tips remain intact. When the tips are removed, further lengthwise growth stops.

a. Which tissue is present at the root tip?
b. What type of growth does it produce?
c. Why does cutting the tip affect growth?
d. Name the corresponding meristem at the shoot tip.

Answers:
a. Apical meristem
b. Increase in length
c. The actively dividing cells at the tip are removed.
d. Shoot apical meristem

Case 2 — A Flexible Stem

A young plant bends during strong wind but returns without breaking.

a. Which tissue is mainly associated with this flexibility?
b. What special feature does this tissue have?
c. What might happen if this tissue were replaced by a much more rigid supporting tissue?

Answers:
a. Collenchyma
b. Unevenly thickened cell corners
c. The plant part would become more rigid and less flexible.

Case 3 — Transport in a Plant

A plant has healthy roots and leaves, but food produced in the leaves is not reaching other parts.

a. Which tissue may be malfunctioning?
b. What does this tissue normally transport?
c. Name two components of this tissue.

Answers:
a. Phloem
b. Food
c. Sieve tubes and companion cells

Case 4 — Movement and Injury

A student observes that a muscle is attached to a bone by a strong band of connective tissue.

a. Name the connective tissue.
b. What does it connect?
c. How does it help movement?

Answers:
a. Tendon
b. Muscle to bone
c. It transmits the force produced by muscle contraction to the bone.

Case 5 — Different Joint Movements

A person raises the arm, bends the elbow and turns the head sideways.

a. Which type of joint allows movement of the arm in many directions?
b. Which joint bends the elbow?
c. Which joint allows side-to-side movement of the head?

Answers:
a. Ball-and-socket
b. Hinge
c. Pivot

I. Higher-Order Thinking Questions

1. A plant living in a desert has a thick cuticle. Explain why this is advantageous.

2. Why would a thick cuticle be less suitable for a plant living underwater?

3. If a plant had no stomata in its leaves, which important processes would be affected?

4. Why can grass grow again after repeated mowing while the cut tip of a young stem may stop growing in length?

5. Why is parenchyma unsuitable for providing the same hardness as coconut husk?

6. Why does damage to phloem affect the distribution of food within a plant?

7. Why are epithelial cells lining regions involved in exchange generally thin?

8. Why is cartilage useful at joints even though it is softer than bone?

9. Why can the shoulder move in more directions than the elbow?

10. Why would fixed joints be appropriate for the skull but inappropriate for the shoulder?

J. Diagram-Based Questions

For examination practice, be prepared to identify, label and explain:

  1. Types of plant meristems — apical, lateral and intercalary.
  2. Internal structure of a sunflower stem — epidermis, ground tissue, xylem, phloem and lateral meristem.
  3. Simple permanent tissues — parenchyma, collenchyma and sclerenchyma.
  4. Vascular tissue — xylem and phloem.
  5. Types of epithelial tissues and their locations/functions.
  6. Components of blood — plasma, RBCs, WBCs and platelets.
  7. Types of muscles — skeletal, smooth and cardiac.
  8. Neuron — cell body, dendrites, axon and axon terminals.
  9. Musculoskeletal system — bones, muscles, cartilage, tendon, ligament and joint.
  10. Types of joints — ball-and-socket, hinge, pivot and fixed.

K. “Identify the Tissue” Questions

1. Living cells, thin walls, food storage → ________
2. Living cells, unevenly thickened corners, flexibility → ________
3. Thick lignified walls, hardness and strength → ________
4. Transports water and minerals → ________
5. Transports food → ________
6. Outer protective covering of a plant → ________
7. Covers body surfaces and lines internal organs → ________
8. Connects muscle to bone → ________
9. Connects bone to bone → ________
10. Produces voluntary movement → ________
11. Found in stomach and intestine → ________
12. Found only in heart → ________
13. Receives and transmits messages → ________

Answers

  1. Parenchyma
  2. Collenchyma
  3. Sclerenchyma
  4. Xylem
  5. Phloem
  6. Epidermis
  7. Epithelial tissue
  8. Tendon
  9. Ligament
  10. Skeletal muscle
  11. Smooth muscle
  12. Cardiac muscle
  13. Nervous tissue

Important Questions

If exam time is short, do not skip these:

  1. Explain the three types of meristematic tissues with their functions.
  2. Differentiate between parenchyma, collenchyma and sclerenchyma.
  3. Differentiate between xylem and phloem.
  4. Explain the functions of epidermis, root hairs and stomata.
  5. Explain why permanent tissues are called specialised tissues.
  6. Describe the four major types of animal tissues.
  7. Explain the different types of epithelial tissues with examples/functions.
  8. Differentiate between bone, cartilage, tendon and ligament.
  9. Differentiate between skeletal, smooth and cardiac muscles.
  10. Explain the structure and function of a neuron.
  11. Explain how muscles, tendons, bones and joints work together.
  12. Explain ball-and-socket, hinge, pivot and fixed joints with examples.
  13. Describe the structure and functions of the skeletal system.
  14. Explain totipotency, dedifferentiation and redifferentiation.
  15. Solve application questions involving tissue identification and structure–function relationships.