Question

2.
Give reasons for the following:
(a) Mushroom is a saprotroph.
(b) Sun is the ultimate source of energy for all living organisms.
(c) The leaf of a plant dies out if its stomata are blocked.
d) Leaf is known as the food factory of the plant.
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Answer 1

Answer:

1. mushroom is a saprotroph because it has no chlorophyll to make its own food. So it grows on dead and decaying matters and take their food from them.

2. the sun is the ultimate source of energy because it brings heat and light to the earth. plants make food using sunlight. the food that we get from plants and animals also has its prime source as sunlight.

3. stomata are tiny pores present in the leaves through which exchange of gases take place. Therefoere, if it is blocked, the prcess of photosynthesis stops and so does the gaseous exchange.

4. leaves are known as the food factory of the plant because it produces food for the plant by the process of photosynthesis with the help of inorganic raw materials.

Explanation:

hope it helps!!

Answer 2

Mushroom is a saprotroph because it does not has chlorophyll content in its leaves

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.

The stomata are the pores surrounded by guard cells which help plant to take in carbon dioxide and take out oxyzen. This is so because when the stomata was blocked the plant was unable to take in carbon dioxide and hence unable to perform photosynthesis