Question

In onion leaves, food is stored in the form of
(a)Sugar
(b)Starch
(c)Protein
(d)Malic acid

Answer 1

It is a white solid, odorless, and has a sweet taste. This non-reducing disaccharide compound is very soluble in water and methanol. They can be obtained from sugarcane, beta Vulgaris, and various other plants. It is widely used in food as a sweetener.

Complete answer:
The base of each onion leaf is a flattened, usually white sheath that grows out of a basal disc. From the underside of the disc, a bundle of fibrous roots extends for a brief way into the soil. As the onion matures, food reserves begin to accumulate within the leaf bases and the bulb of the onion swells. Sugar is present in the form of reserves or stored food in bulbs like onion and garlic. Starch is the stored food in the rhizomes, tubers, and underground stem.

Additional Information: The onion plant has the support of hollow, bluish-green leaves and its bulb at the bottom of the plant starts to expand when a definite day-length is achieved. The bulbs are made up of shortened, compressed, underground stems enclosed by fleshy modified scale (leaves) that surround a central bud at the tip of the stem. In the autumn (or in spring, within the case of overwintering onions), the foliage dies down and therefore the outer layers of the bulb become dry and brittle. The crop is harvested and dried and therefore the onions are ready to be used for storage.
So, the correct answer is ‘Sugar’.

Note: Onions are cultivated and used around the world. As a food item, they're usually served cooked, as a vegetable or a part of a prepared savory dish, but also can be eaten raw or wont to make pickles or chutneys. They are pungent when chopped and include definite chemical matter which irritates the eyes.