Question

Match the following with the right pair.

Set I	Set II
i. Leguminous plants	a. Petioles synthesize food
ii. Onion	b. Pulvinus
iii. Australian acacia	c. Whorled phyllotaxy
iv. Alstonia	d. Fleshy scales

• A. i-d, ii-b, iii-c, iv-a
• B. i-b, ii-d, iii-a, iv-c
• C. i-c, ii-d, iii-b, iv-a
• D. i-a, ii-b, iii-c, iv-d

Answer 1

The correct option is B i-b, ii-d, iii-a, iv-c

The leaf base is the lowermost portion of the leaf by which the leaf is joined to the stem node. In leguminous plants, the leaf base is swollen, known as a pulvinus. It is responsible for the sleep and shock movements of certain leaves. These movements are called nastic responses.

In onions, the fleshy scales represent leaf bases in the outer part and scale leaves in the central region. Food is stored in the fleshy scales. In garlic, fleshy scales represent buds, which are sickle-shaped called cloves.

In Australian acacia, the leaves are small and short-lived, and petioles expand, become green, and synthesize food.

Alstonia shows whorled phyllotaxy, i.e., three or more than three leaves develop from a single node.

Hence option b is the correct answer choice.