cell membrane

Question 1

define the term fluid

Answer 1

because the phospholipid molecules within a layer can move relative to each other.​

Question 2

define the term mosaic

Answer 2

because the proteins within the phospholipid layer are of different sizes and shapes and form different patterns.

Question 3

what are the functions of cholesterol

Answer 3

maintains stability and regulates fluidity.

Question 4

what are the functions of glycoproteins

Answer 4

cell recognition. They also help cells attach to and bind other cells, which is called cell adhesion.​

Question 5

what are the functions of glycolipids

Answer 5

it plays not only a structural role to maintain membrane stability but also facilitates cell communication acting as receptors

Question 5

what are the functions of channel and carrier proteins

Answer 5

channel proteins form open pores through the membrane, allowing the free diffusion of any molecule of the appropriate size and charge.​

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Carrier proteins are responsible for the facilitated diffusion of sugars, amino acids, and nucleosides across the plasma membranes of most cells.