Practicing Class 9 Science MCQ and Class 9 Science Exploration Chapter 3 MCQ Online Test with Answers Tissues in Action daily helps in time management.
Class 9 Science Chapter 3 Tissues in Action MCQ
Tissues in Action MCQ
Class 9 Science Chapter 3 MCQ online test
Question 1.
Which of the following gives rigidity and strength to plant cells?
(a) Cell membrane
(b) Cytoplasm
(c) Cell wall
(d) Nucleus
Answer:
(c) Cell wall
Question 2.
In unicellular organisms like amoeba, which statement is correct?
(a) Different cells perform different functions
(b) A single cell performs all functions
(c) Tissues are clearly formed
(d) Organs are present
Answer:
(b) A single cell performs all functions
Question 3.
Division of labour in multicellular organisms means:
(a) All cells do the same work
(b) Different groups of cells perform different functions
(c) Only one type of tissue is present
(d) Cells do not specialise
Answer:
(b) Different groups of cells perform different functions
Question 4.
Which meristematic tissue is responsible for increase in length of the plant?
(a) Lateral meristem
(b) Intercalary meristem
(c) Apical meristem
(d) Cork cambium
Answer:
(c) Apical meristem
Question 5.
The waxy layer on the epidermis of plants is called:
(a) Lignin
(b) Cuticle
(c) Pectin
(d) Cellulose
Answer:
(b) Cuticle
Question 6.
Which of the following is a living component of xylem?
(a) Tracheids
(b) Vessels
(c) Xylem parenchyma
(d) Xylem fibres
Answer:
(c) Xylem parenchyma
Question 7.
Collenchyma cells have unevenly thickened corners due to the deposition of:
(a) Lignin
(b) Suberin
(c) Pectin
(d) Cutin
Answer:
(c) Pectin
Question 8.
Which tissue forms the outer covering of the body and lines internal organs?
(a) Connective tissue
(b) Epithelial tissue
(c) Muscular tissue
(d) Nervous tissue
Answer:
(b) Epithelial tissue
Question 9.
The red colour of blood is due to:
(a) WBCs
(b) Platelets
(c) Haemoglobin in RBCs
(d) Plasma
Answer:
(c) Haemoglobin in RBCs
Question 10.
Which type of muscle is found only in the heart?
(a) Skeletal muscle
(b) Smooth muscle
(c) Cardiac muscle
(d) Striated muscle
Answer:
(c) Cardiac muscle
Question 11.
The long fibre of a neuron that carries messages away from the cell body is called:
(a) Dendrite
(b) Axon
(c) Cell body
(d) Nucleus
Answer:
(b) Axon
Question 12.
Which type of joint allows movement in all directions?
(a) Hinge joint
(b) Fixed joint
(c) Ball and socket joint
(d) Pivot joint
Answer:
(c) Ball and socket joint
Question 13.
The vertebral column is made up of small bones called:
(a) Ribs
(b) Vertebrae
(c) Cartilage
(d) Sternum
Answer:
(b) Vertebrae
Question 14.
Which joint in the body does not allow any movement?
(a) Shoulder joint
(b) Knee joint
(c) Skull joints
(d) Neck joint
Answer:
(c) Skull joints
Tissues in Action Class 9 Assertion and Reason Questions
Directions: For Questions number (1) to (5), two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and d, as given below.
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
(c) Assertion (A) is true, but Reason (R) is false.
(d) Assertion (A) is false, but Reason (R) is true.
Question 1.
Assertion (A): Meristematic cells have thin cell walls and dense cytoplasm.
Reason (R): These features allow them to divide rapidly and continuously.
Answer:
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Explanation:
Thin cell walls and dense cytoplasm are adaptations that support rapid and continuous cell division.
Question 2.
Assertion (A): Sclerenchyma tissue provides flexibility to the plant.
Reason (R): Sclerenchyma cells have thick, lignifled walls and are mostly dead.
Answer:
(d) Assertion is false but Reason is true.
Explanation:
Sclerenchyma provides hardness and strength, not flexibility. Flexibility is provided by collenchyma. However, the Reason correctly describes sclerenchyma cells.
Question 3.
Assertion (A): Blood is classified as a connective tissue.
Reason (R): Blood connects different parts of the body by transporting nutrients, gases and hormones.
Answer:
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Explanation:
Blood is a fluid connective tissue because it connects and links different parts of the body through transport of substances.
Question 4.
Assertion (A): Fixed joints in the skull allow slight movement for brain protection.
Reason (R): Fixed joints do not allow any movement.
Answer:
(a) Assertion is false but Reason is true.
Explanation:
Fixed joints do not allow any movement at all. They hold the skull bones firmly together to protect the brain.
Question 5.
Assertion (A): Phloem is mostly made up of living cells.
Reason (R): Xylem parenchyma is the only living component of xylem.
Answer:
(b) Both A and R are true, but R is not the correct explanation.
Explanation:
Both statements are independently true facts about plant tissues, but the living nature of xylem parenchyma does not explain why phloem is mostly living.
Tissues in Action Class 9 Fill in the Blanks
1. A group of cells similar in structure that work together to perform a specific function is called a ____________.
Answer:
tissue
2. Plant cells have a ____________ that provides rigidity, which animal cells lack.
Answer:
cell wall
3. In animals, ____________ tissue carries messages to different parts of the body.
Answer:
nervous
4. Xylem transports ____________ and minerals, while phloem transports ____________.
Answer:
water; food
5. The hierarchy of organisation in multicellular organisms is: Cells → ____________ → Organs → Organ systems → Organism.
Answer:
Tissues
6. The process by which meristematic tissue becomes permanent tissue is called ____________.
Answer:
differentiation
7. Sclerenchyma cells have thick walls due to the deposition of ____________.
Answer:
lignin
8. In roots, hair-like projections of epidermal cells are called ____________.
Answer:
root hair
9. The ____________ meristem helps grasses regrow after being mowed.
Answer:
intercalary
10. Sieve tubes in phloem transport ____________ from leaves to other parts.
Answer:
food
11. Blood clotting at the site of an injury is caused by ____________.
Answer:
platelets
12. Smooth muscles are found in organs like the stomach and ____________.
Answer:
intestines
13. ____________ connect muscles to bones.
Answer:
Tendons
14. The part of a neuron that receives signals from other neurons is called ____________.
Answer:
dendrite
15. Bone has a rigid matrix containing ____________ and phosphorus compounds.
Answer:
calcium
16. The rib cage protects the ____________ and ____________ lungs.
Answer:
heart
17. The adult human skeleton makes up about ____________ per cent of body weight.
Answer:
12 to 15
18. A ____________ joint allows the head to move side to side.
Answer:
pivot
19. The knee is protected by a small bone called the ____________.
Answer:
kneecap
20. Between each vertebra is a ____________ disc that acts as a cushion.
Answer:
cartilage
Tissues in Action Class 9 True or False
1. Animal cells have a rigid cell wall like plant cells.
Answer:
False.
Animal cells lack a cell wall. They only have a cell membrane, which makes them flexible and suitable for movement.
2. In multicellular organisms, division of labour increases efficiency.
Answer:
True.
When different tissues perform specialised functions, the organism works more efficiently.
3. Plants and animals have the same types of tissues because they perform similar functions.
Answer:
False.
Plants and animals have different tissues because their needs are different. Plants are stationary and need support; animals move and need flexible, contractile tissues.
4. Meristematic cells have large vacuoles for storing food.
Answer:
False.
Meristematic cells generally lack vacuoles. They have dense cytoplasm and large nuclei to support rapid cell division.
5. Xylem is made up of only living cells.
Answer:
False.
Except for xylem parenchyma, the components of xylem (tracheids, vessels, xylem fibres) are mostly dead.
6. Annual rings in a tree trunk are formed by the activity of the lateral meristem.
Answer:
True.
The lateral meristem divides and produces new cells in a concentric manner, forming one ring each year.
7. Parenchyma in aquatic plants may have air spaces to help the plant float.
Answer:
True.
Specialised parenchyma with large air cavities gives buoyancy to aquatic plants.
8. Skeletal muscles are involuntary muscles.
Answer:
False.
Skeletal muscles are voluntary muscles. We can control them consciously, e.g., for running, writing and lifting.
9. Ligaments connect muscles to bones.
Answer:
False.
Ligaments connect bone to bone. Tendons connect muscles to bones.
10. Cardiac muscles work tirelessly throughout life without fatigue.
Answer:
False.
Cardiac muscles contract rhythmically and continuously from birth to death without getting tired.
11. The elbow joint allows movement in all directions.
Answer:
False.
The elbow is a hinge joint and allows movement in only one direction (bending and straightening).
12. The rib cage is completely rigid and cannot move.
Answer:
False.
The ribs are joined by flexible cartilage that allows the rib cage to expand and contract during breathing.
13. Tendons transmit the force of muscle contraction to bones, causing movement.
Answer:
True.
When a muscle contracts, the tendon pulls the bone, resulting in movement at a joint.
Tissues in Action Class 9 Match the Following
Question 1.
Match the following plant tissues with their functions:
| Column A | Column B |
| 1. Parenchyma | (a) Transports water and minerals |
| 2. Sclerenchyma | (b) Provides flexibility |
| 3. Xylem | (c) Stores food |
| 4. Collenchyma | (d) Transports food |
| 5. Phloem | (e) Provides hardness and strength |
| 6. Epidermis | (f) Protects the plant body |
Answer:
| Column A | Column B |
| 1. Parenchyma | (c) Stores food |
| 2. Sclerenchyma | (e) Provides hardness and strength |
| 3. Xylem | (d)Transports water and minerals |
| 4. Collenchyma | (b) Provides flexibility |
| 5. Phloem | (d) Transports food |
| 6. Epidermis | (f) Protects the plant body |
Question 2.
Match the following animal tissues/structures with their characteristics:
| Column A | Column B |
| 1. Skeletal muscle | (a) Found only in the heart |
| 2. Smooth muscle | (b) Fluid connective tissue |
| 3. Cardiac muscle | (c) Has dendrites and axon |
| 4. Blood | (d) Voluntary, striated, multinucleate |
| 5. Neuron | (e) Involuntary, spindle-shaped, no striations |
Answer:
| Column A | Column B |
| 1. Skeletal muscle | (d) Voluntary, striated, multinucleate |
| 2. Smooth muscle | (e) Involuntary, spindle-shaped, no striations |
| 3. Cardiac muscle | (d) Found only in the heart |
| 4. Blood | (b) Fluid connective tissue |
| 5. Neuron | (c) Has dendrites and axon |
MCQ On Tissues in Action Class 9 for Practice
Choose the correct option in the following questions
Question 1.
Which of the following is NOT a type of meristematic tissue?
(a) Apical
(b) Lateral
(c) Collenchyma
(d) Intercalary
Question 2.
The tissue that provides buoyancy to aquatic plants is:
(a) Sclerenchyma
(b) Collenchyma
(c) Specialised parenchyma (aerenchyma)
(d) Xylem
Question 3.
Which of the following is a complex permanent tissue?
(a) Parenchyma
(b) Collenchyma
(c) Sclerenchyma
(d) Phloem
Question 4.
Companion cells are found in:
(a) Xylem
(b) Phloem
(c) Epidermis
(d) Sclerenchyma
Question 5.
Which epithelial tissue is found in the lining of blood vessels?
(a) Stratified
(b) Squamous
(c) Columnar
(d) Glandular
Question 6.
Haemoglobin is present in:
(a) WBCs
(b) RBCs
(c) Platelets
(d) Plasma
Question 7.
Which muscle type is branched and has faint striations?
(a) Skeletal
(b) Smooth
(c) Cardiac
(d) None of these
Question 8.
The hip joint is an example of:
(a) Hinge joint
(b) Pivot joint
(c) Fixed joint
(d) Ball and socket joint
Question 9.
Cork is formed by the activity of:
(a) Apical meristem
(b) Intercalary meristem
(c) Cork cambium (lateral meristem)
(d) Parenchyma
Question 10.
The backbone is also called the:
(a) Rib cage
(b) Sternum
(c) Vertebral column
(d) Skull
Assertion-Reason Questions
Directions: For Questions number (1) to (4), two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
(c) Assertion (A) is true, but Reason (R) is false.
(d) Assertion (A) is false, but Reason (R) is true.
Question 1.
Assertion (A): Collenchyma provides flexibility to young plant stems.
Reason (R): Collenchyma cells have evenly thickened walls due to lignin deposition.
Question 2.
Assertion (A): Xylem provides both transport and mechanical support to plants.
Reason (R): Xylem consists of tracheids and vessels with thick walls.
Question 3.
Assertion (A): Smooth muscles can be controlled voluntarily.
Reason (R): Smooth muscles are found in the walls of the stomach and intestines.
Question 4.
Assertion (A): Transpiration helps in the upward movement of water in plants.
Reason (R): Transpiration creates a pulling force (transpiration pull) in the xylem.
Question 5.
Assertion (A): WBCs help in blood clotting.
Reason (R): WBCs collect at infected areas to fight germs.
Fill in the Blanks
1. The cells of meristematic tissue are tightly packed with little or no space.
2. The three types of simple permanent tissues are parenchyma, and sclerenchyma.
3. In phloem, the cellular functions of sieve tube cells are regulated by .
4. Cartilage has a soft, matrix.
5. The joint in the neck allows the head to rotate side to side.
State whether the statements given below are True or False
1. Phloem consists entirely of dead cells.
2. Smooth muscles are voluntary muscles found in the arms and legs.
3. The epidermis of desert plants usually has a thick cuticle.
4. Dendrites carry messages away from the cell body of a neuron.
5. The kneecap protects the hinge joint at the knee.
Match the Columns
Question 1.
| Column A | Column B |
| 1. Apical meristem | (a) Increase in girth |
| 2. Lateral meristem | (b) Regrowth after cutting |
| 3. Intercalary meristem | (c) Transport of food |
| 4. Phloem | (d) Increase in length |
| 5. Cuticle | (e) Prevents water loss |
Question 2.
| Column A | Column B |
| 1. Shoulder | (a) Fixed joint |
| 2. Elbow | (b) Pivot joint |
| 3. Skull | (c) Ball and socket joint |
| 4. Neck | (d) Hinge joint (knee) |
| 5. Knee | (e) Hinge joint (elbow) |