Assignment test

 Class VII – Science (Competency-Based Assessment)

Chapters:

Reproduction in Plants

Transportation in Plants and Animals

Time: 1 Hour Maximum Marks: 20

Section A

(Question No. 1 to 3 are Multiple Choice Questions. Question No. 4 and 5 are Assertion–Reason type. Each question carries 1 mark.)

Q1. A farmer uses stem cuttings of rose plants instead of seeds to grow new plants. This method is preferred because it:

a) Produces plants in a shorter time b) Increases genetic variation

c) Requires fertilization d) Depends on pollination

Q2. If the phloem tissue of a plant is damaged, which process will be affected the most?

a) Transport of water b) Transport of food

c) Absorption of minerals d) Exchange of gases

Q3. Which blood vessel helps in the exchange of gases and nutrients between blood and body tissues?

a) Artery b) Vein c) Capillary d) Aorta

Q4. Assertion (A): Fertilization leads to the formation of seeds in flowering plants.

Reason (R): Fertilization involves fusion of male and female gametes.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

Q5. Assertion (A): Veins contain valves.

Reason (R): Valves prevent the backward flow of blood.

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is true

Section B

(Question No. 6 to 8 are Short Answer Type Questions. Each question carries 2 marks. Question No. 9 is a case-based question carrying 4 marks.)

Q6. A gardener observes that a new plant grows from the underground stem of ginger.

Identify the type of reproduction and mention one advantage of this method. (2 marks)

Q7. A potted plant wilts when not watered for several days.

Name the tissue responsible for water transport and explain why wilting occurs. (2 marks)

Q8. During heavy exercise, the heartbeat of a person increases.

Explain why an increased heartbeat is necessary. (2 marks)

Q9. Case-Based Study (4 marks)

Ravi conducted an experiment where he placed a flowering plant near a window. After a few days, he observed fruit formation. He also learned that blood carries oxygen and nutrients to all parts of the body.

Answer the following questions:

a) Name the process that leads to fruit formation in plants. (1 mark)

b) Which agent most likely helped in pollination near the window? (1 mark)

c) Name the component of blood that carries oxygen. (1 mark)

d) Which blood vessel carries oxygenated blood from the heart to the body? (1 mark)

Section C

(Question No. 10 is a Long Answer Type Question. It carries 5 marks.)

Q10.a) Explain the process of reproduction in flowering plants from pollination to seed formation.

OR

b) Describe the structure and functions of the human heart, explaining how it helps in transportation of substa

nces. (5 marks)