AP BIOLOGY

Detailed explanation-1: -The plant cell wall thus has a “skeletal” role in supporting the structure of the plant as a whole, a protective role as an enclosure for each cell individually, and a transport role, helping to form channels for the movement of fluid in the plant.

Detailed explanation-2: -The cell wall is located outside the cell membrane. It consists mainly of cellulose and may also contain lignin, which makes it more rigid. The cell wall shapes, supports, and protects the cell. It prevents the cell from absorbing too much water and bursting.

Detailed explanation-3: -The Cellular Membrane The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.

Detailed explanation-4: -The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.

Detailed explanation-5: -A cell wall is a firm structure that encloses the cell membrane of a cell, giving it form and protection. Because the plant cell wall is made of cellulose, plant cells have firm and rigid shapes and are able to create very strong and tall structures. Plants are the only organisms that have cell walls made of cellulose.