AP BIOLOGY

Detailed explanation-1: -Answer: Fibrous roots are thin, spreading roots that grow horizontally just below the soil surface. Fibrous roots anchor the plant and absorb water and minerals from the top layer of the soil. Many plants have fibrous roots, including grasses and most other types of herbaceous (nonwoody) plants.

Detailed explanation-2: -Thin, branched roots that arise from the base of the stem are known as fibrous roots. Grasses and monocotyledons are characterised by the presence of fibrous roots. The roots are moderately branched, but once a tree fully matures it gives a mat-like appearance. The thin roots have the same diameter.

Detailed explanation-3: -Plant roots absorb water through root hairs, which are tiny roots that extend from the root’s epidermis, or the outer layer of the root. Just one cell thick, they absorb water and nutrients from the soil.

Detailed explanation-4: -Taproot consists of the one, long main root, where secondary, tertiary and rootlets are visible. Even the primary root is very thick as compared to other roots (Carrot, Radish). Whereas fibrous oradventitious roots contains short-lived roots, which are shallow and the growth can be either underground or aerial.

Detailed explanation-5: -The fibrous roots are thin, with root hairs, and their function is mainly absorption of plant nutrients and water from soil.