AP BIOLOGY

Detailed explanation-1: -Tubers grow underground, no matter if they are stem tubers or root tubers. An example of a tuber plant is the potato. In potato plants, the stem organ is enlarged to form potatoes, which are the fleshy tuber filled with starch.

Detailed explanation-2: -A stem tuber forms from thickened rhizomes or stolons. The top sides of the tuber produce shoots that grow into typical stems and leaves and the under sides produce roots. They tend to form at the sides of the parent plant and are most often located near the soil surface. Irish potato is a stem tuber.

Detailed explanation-3: -The edible part of the plant is an un-derground stem called a tuber (not a root). Irish potatoes contain 2 percent protein and 18 percent starch. They are an inex-pensive source of carbohydrates and, when prepared properly, provide good amounts of vitamins and minerals.

Detailed explanation-4: -Potatoes and yams are tubers, whereas taro and cocoyams are derived from corms, underground stems, and swollen hypocotyls. Cassava and sweet potatoes are storage roots and canna and arrowroots are edible rhizomes.

Detailed explanation-5: -The most well-known tuber is the potato. Tubers can be easily recognized by the eyes from which the stems grow. These types of plants can be cut into pieces and re-grown as long as each piece contains an eye. Other examples of tubers include dahlias and caladiums.