What is a cell wall?
Q: What is a cell wall?
A: A cell wall is a the outer layer of a cell in plants, bacteria, fungi, algae, and some archaea that protects the cell from damage, maintains its shape, and controls its growth.
Q: Do animal cells have cell walls?
A: No, animal cells do not have cell walls.
Q: What is the function of a cell wall?
A: The function of a cell wall is to provide support and protection to the cell, act as a filter and pressure vessel, and control the growth of the organism.
Q: What is the material of a cell wall made of in plants and algae?
A: The material of a cell wall in plants and algae is made of long molecules of cellulose, pectin, and hemicellulose.
Q: What is the difference between a cell wall and a cell membrane?
A: A cell wall is the outer layer of the cell and provides support and protection, while a cell membrane is the inner layer that regulates the movement of molecules in and out of the cell.
Q: Does the cell wall allow proteins to pass through?
A: Yes, the cell wall has channels that allow some proteins to pass through while keeping others out.
Q: Can water and small molecules pass through the cell wall?
A: Yes, water and small molecules can pass through both the cell wall and the cell membrane.
