Question

1. As we know that the leaves of plants are waterproof due to cuticle. On the

same way, take some pieces of paper of leaf size and make them waterproof. After

completion, put half of these paper pieces in cold water and half in hot water. Do all

the pieces of paper remains waterproof? Explain your observations and results with

justifications.​

Answer 1

As we know that the leaves of plants are waterproof due to cuticle. On the same way, take some pieces of paper of leaf size and make them waterproof.

Answer 2

The cuticle is the waxy thick layer that covers the leaves.

Explanation:

Following are the observation made on the cuticle of the plant leaves:-

• The epidermis is the outer layer of the primary plant body including leaves.
• The epidermal cells are the living cells having cytoplasm and nucleus. These are elongated cells that are compactly arranged leaving less space between themselves.
• The outside of the epidermis is often covered with a waxy thick layer called the cuticle which prevents the loss of water because of the deposition of a waxy substance called cutin.