Cell membrane

Glycoproteins are lipids that have an attached carbohydrate chain of sugar.

• True

• False

Channel proteins function:

• selectively interact with a specific molecule so it can cross the plasma membrane (e.g., Na⁺ K⁺ pump).

• glycoproteins that allow the body’s immune system to distinguish between foreign invaders and body cells.

• carry out specific metabolic reactions.

• allow a particular molecule to cross a membrane freely (e.g., Cl– channels).

Integral and peripheral refers to which component of the plasma membrane

• Chlosterol

• Carbohydrate

• Proteins

• Phospholipids

The fluidity in the plasma membrane comes from

• Phospholipids and proteins

• Phospholipids and carbohydrates

• Phospholipids and cholesterol

• proteins

Carbohydrates are found on the inner layer (near the cytoplasm) of the plasma membrane

• True

• False

The cell membrane is composed of

• Phospholipids, nucleic acids, proteins

• Phospholipids, cell wall, proteins

• phospholipids, cholesterol, proteins

• Phospholipids, glycerol, proteins