AP BIOLOGY

Detailed explanation-1: -Complete answer: Xylem transports water and nutrients that enter the plant in the root up through the stem and out to all parts of the leaf. Xylem has two types of cells known as tracheids and vessel elements.

Detailed explanation-2: -The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant. The phloem and xylem are the main tissues responsible for this movement.

Detailed explanation-3: -The xylem transports water and minerals from the roots up the plant stem and into the leaves. In a mature flowering plant or tree, most of the cells that make up the xylem are specialised cells called vessels.

Detailed explanation-4: -Xylem is the tissue of vascular plants that transports water and nutrients from the soil to the stems and leaves. Xylem plays an essential ‘supporting’ role providing strength to tissues and organs, to maintain plant architecture and resistance to bending.

Detailed explanation-5: -Phloem is responsible for the transport of food substances in plants. It is the complex tissue that acts as a transport system for soluble organic compounds within vascular plants. It transports the food made in leaves to other parts of plants.