Cell membrane Functions

Question 1

What is the function of the cell membrane?

Answer 1

Semi-permeable barrier separating the intracellular environments

Question 2

What are the component of the membrane

Answer 2

Phospholipids and proteins

Question 3

How much does membrane proteins make up?

Answer 3

50%

Question 4

How many types of membrane proteins are there, and what are they?

Answer 4

2 types
-Integral proteins
-Peripheral proteins

Question 5

What are membrane proteins?

Answer 5

• Integral proteins firmly inserted into the lipid bilayer

Question 6

True or false: Membrane proteins contain hydrophobic and hydrophilic regions

Answer 6

True

Question 7

Most integral proteins are involved with

Answer 7

transport.

Question 8

Peripheral proteins are loosely attached to integral proteins and are easily

Answer 8

detached

Question 9

Peripheral proteins serve as
(there are 3)

Answer 9

Enzymes
Motor functions(movement)
Link cells together(junctions)

Question 10

What is the cell membrane’s most important function?

Answer 10

To select what goes in and out of the cell

Question 11

What are the two types of transport?

Answer 11

Passive and active