Module 2 - Biological Membranes

Question 1

What does permeable mean?

Answer 1

It’s the ability to let substances pass through something

Question 2

What do cell membranes do?

Answer 2

Seperate cell’s components from its external environment
Regulates transport of materials into and out of cells
May contain enzymes involved in specific metabolic treatment reactions
Has antigens
Contains receptors

Question 3

What does the fluid mosaic model suggest?

Answer 3

It proposes that the fabric of membranes is a phospholipid bilayer with proteins floating in it
Lipids can switch places and some proteins making it more fluid