Question

D. Answer these questions in one or two sentences.
1. Name the chemical required for testing the presence of starch in a leat.
2. From where do moulds and mushroom get their food?
3. Why should leaves be bleached before testing for presence of starch?
4. List the things that are required for photosynthesis to occur in green leaves.
5. Why has government established wildlife sanctuaries?​

Answer 1

Answer:

1. iodine solution

2.from other living organisims or dead organic matter

3.to remove the chlorophyll from them

4. sunlight,carbon dioxide, water

5. to protect the animals and safeguard their lives

Explanation:

hope my answer helps u..

Answer 2

1) Iodine solution is used to test leaves for the presence of starch.

2) Bread mould and mushrooms break-down the food material outside the body and then absorb it. The mode of nutrition adopted by them is saprotrophic (heterotrophic).

3) Starch is bleached before testing for starch to remove chlorophyll as it would be helpful in colour testing after iodine test.

4) To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis.

5) Wildlife sanctuaries are established to protect particular species of animals.