Question

Give reasons
1. Why leaf is called kitchen of the plant?
2. Why are leaves converted into spines in cactus plants?
3. Why is nucleus called control centre of the cell?​

Answer 1

Answer:

1. A leaf is actually called 'the kitchen of the plant'. This is because they are the main organ responsible for photosynthesis, through which the plant produces its energy a.k.a. it's food. They obtain their green color due to the presence of chlorophyll.

2. The leaves of cactus are modified into spines, to prevent water loss from the surface of leaves. Thus, the stem is the centre of photosynthesis in the cactus plants instead of the leaves.

3. The nucleus is the largest and most prominent of a cell's organelles (Figure 3.7). The nucleus is generally considered the control center of the cell because it stores all of the genetic instructions for manufacturing proteins.

Hope it help you

Answer 2

Answer:

1. Leaves are called kitchen of the plant because they made food for the plants through the process of Photosynthesis.

2. The leaves of cactus are modified into spines, to prevent water loss from the surface of leaves. ... Thus, the stem is the centre of photosynthesis in the cactus plants instead of the leaves.

3.The nucleus is the largest and most prominent of a cell's organelles (Figure 3.7). The nucleus is generally considered the control center of the cell because it stores all of the genetic instructions for manufacturing proteins.