NEET Practice Questions (MCQs) with Answers & Solutions

A seed is defined as a mature ovule that contains a dormant embryo, along with enough reserve food and protective coatings. This allows the seed to remain dormant until conditions are favorable for germination. The reserve food provides the necessary nutrients for the embryo during germination.

In maize grain, the starchy food is stored in the endosperm. The endosperm is a tissue produced inside the seeds of most flowering plants around the time of fertilization. It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein.

Cabbage is not a fruit. It is a leafy green, red, or white biennial plant grown as an annual vegetable crop for its dense-leaved heads. Fruits are typically defined as the mature ovary of a flowering plant, usually containing seeds, which develop from the fertilized ovary of a flower.

The reduced discoid and underground stem is found in the Onion. The underground stem of an onion is a bulb, which is a modified stem with fleshy leaves used for storage.

Fibers are found on the seeds of Gossypium, which is the scientific name for the cotton plant. Cotton fibers are actually elongated cells that develop from the surface of the seed.

In flowering plants, the vegetative organs are those parts of the plant that are not involved in reproduction. These include the roots, stems, and leaves. These organs are responsible for the growth and maintenance of the plant. Flowers and fruits are reproductive organs and hence not considered vegetative organs.

Roots typically lack chlorophyll, which is the green pigment used in photosynthesis. Instead, roots are primarily involved in the absorption of water and minerals from the soil, anchoring the plant, and storing nutrients. The presence of chlorophyll is a characteristic feature of aerial parts like leaves.

Adventitious roots are roots that grow from any part of the plant other than the radicle. They can grow from stems, leaves, or old woody roots and are often involved in vegetative propagation, stability, and support of the plant.