Page 8 - ACTIVE SCIENCE 4 TOC

4. During respiration, plants use _____________ to release energy from their food.
a. carbon dioxide b. oxygen

c. nitrogen d. starch
5. The green colour of the leaf is due to a green pigment called _____________.

a. chlorophyll b. midrib

c. petiole d. blade

B. Fill in the blanks.

1. _____________ need water, sunlight, carbon dioxide, minerals and nutrients for
survival.

2. Plants manufacture their food through the process of _____________.
3. _____________ animals only eat plants.

4. _____________ depend on smaller animals for food.

5. _____________ supports the plant above the soil.

C. State whether the following statements are true or false:

1. Roots store food for future use. ______
2. Omnivores eat only plants. ______

3. Oxygen is released during photosynthesis. ______

4. Plants are the basis of all food chains. ______

5. The interdependence between animals and plants is called food chain. ______

D. Match the following:

1. Lamina a. tiny openings on the underside of leaves

2. Petiole b. the flat part of the leaf
3. Midrib c. the part which attaches leaf to the stem

4. Stomata d. the main vein of the leaf

E. Give one word for each.

1. The process of making food in the green leaves of plants ____________

2. The interdependence of organisms on each other for food ____________

3. The outer part of a leaf that protects it. ____________
4. The form in which food stores. ____________

5. The underside of leaf has tiny openings called this ____________

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Active Science-4