Question

Study the following statements and select the option with correct statements.
I. Pulvinus leaf base is present in some leguminous plants.
II. In Eichhornia, the petioles expand, becomes green and synthesize food.
III. Opposite phyllotaxy is seen in guava.

• A. I and II
• B. I and III
• C. II and III
• D. I, II and III

Answer 1

The correct option is B

I and III

Most of the leaves have a swollen leaf base known as pulvinus. Its attachment on the stem is not strong.

In guava opposite phyllotaxy is found. In this case, all the pairs of leaves of a branch arise in the same plane, so that two vertical rows are formed.
In Australian Acacia, petiole gets modified into a leaf-like structure and synthesize food.

In Eichhornia, petiole becomes spongy and helps in floating.