AP BIOLOGY

Detailed explanation-1: -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-2: -Seeds, fruits, flowers, roots, and storage organs act as sinks in fully grown plants.

Detailed explanation-3: -Some important sinks are developing leaves, roots, stems, fruits, and flowers. Translocation occurs within a series of cells known as the phloem transport system, which is the most important digestive tissue of plants.

Detailed explanation-4: -Source-to-sink transport of sugar is one of the major determinants of plant growth and relies on the efficient and controlled distribution of sucrose (and some other sugars such as raffinose and polyols) across plant organs through the phloem.