Nutrition in plants Worksheet-5

Nutrition in plants Worksheet-5

Multiple-Choice Questions:

1. Which pigment makes the leaves of the plant green in colour?

(A) Xanthophyll                               (B) Chlorophyll            

(C) Carotene                                     (D) Phycocyanin

2. Which stimulus makes a plant’s stem grow up?

(A) Air                  (B) Water             (C) Sunlight         (D) Any of these

3. Organisms which depend on the food produced by  plants are known as:

(A) Autotrophs                                 (B) Heterotrophs

(C) Saprotrophs                               (D) None of these

4. Venus fly trap is:

(A) Autotroph and insectivorous plant

(B) Heterotroph and Insectivorous plant

(C) saprophytic plants

(D) None of these

5. The atmospheric nitrogen is converted into the soluble form by certain __ present in the soil which can further be absorbed by plants along with the water.

(A) Bacteria         (B) Fungi              (C) Algae              (D) Euglena

6. Chemo autotrophs prepare their food in the presence of:

(A) Sunlight         (B) Chemicals      (C) Both of these

7. Cuscuta depend  completely on others for food and habitat and hence it is called:

(A) Commensal   (B) Symbionts     (C) Parasite          (D) Saprophyte

8. Pitcher plant is green in colour. Its leaf is modified into pitcher. It gets its food:

(A) By the process of photosynthesis

(B) It has a symbiotic relationship with dragon fly trap

(C) Its a parasite on banyan tree

(D) By eating insects

9. A pair of curved cells that surround stomata are called:

(A) Guard cells                                 (B) Mesophyll cells

(C) Epidermal cells                          (D) Endodermal cells

10. What is the difference between a parasite and a saprophyte?

(A) Parasites feed on dead organic matter and saprophytes feed on living organisms

(B) Saprophytes feed on dead organic matter and Parasites feed on living organisms.

(C) Parasites share mutual relationship with others whereas saprophytes depend on other living organisms for food

(D) Saprophytes share mutual relationship with others whereas parasites depend on other living organisms for food

Answer Key:

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