AP BIOLOGY

Detailed explanation-1: -The sink organs of potato are the underground tubers, and the source organs are its leaves (Fig.

Detailed explanation-2: -A tuber is a thickened underground part of a stem. It has buds that can produce a new plant through vegetative propagation. A tuber contains a large amount of edible starch that can be eaten. As a result, the edible portion of the potato is the stem.

Detailed explanation-3: -Source tissues in a potato plant are primarily leaves and stems. A “sink” is a net carbon user, which includes respiration, growth and storage ofcarbon compounds. Sink organs include tubers, roots, rapidly growing tissues, or even old and shaded leaves. In a potato plant, the sink of greatest interest is the tuber.

Detailed explanation-4: -The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks. Sinks include areas of active growth (apical and lateral meristems, developing leaves, flowers, seeds, and fruits) or areas of sugar storage (roots, tubers, and bulbs).

Detailed explanation-5: -The part of a potato plant that can be eaten is its thickened underground stem-and officially, that’s the part of the plant considered a tuber.