what is function of cell membrane
Answers
Explanation:
The cell wall is present only in plants, fungi, and bacteria. The image above represents a plant cell wall
The cell wall is the outermost covering of plant cells. It is present outside the cell membrane and is tough, flexible and sometimes rigid in its texture. It is mainly composed of cellulose, long fibres of carbohydrates including hemicellulose, lignin, and pectin.
The main functions of the cell wall
Protecting the cell against physical damage and invading pathogens.
Regulate and controls the direction of cell growth.
Providing the strength, structural support and maintaining the shape of the cell.
Functions as a storage unit by storing carbohydrates for use in plant growth, especially in seeds.
It acts as a selectively permeable membrane by allowing the entry of small molecules to pass through it.