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Cell Membrane

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.
What is the main component of a cell membrane?
a)
Cholesterol
b)
Phospholipids
c)
Proteins
d)
Sugar molecules
2.
What molecule often acts as an antigen, identifying what a cell is?
a)
Cholesterol
b)
Phospholipids
c)
Peripheral proteins
d)
Glycoproteins
3.
What molecule is important to keeping a cell membrane flexible?
a)
Cholesterol
b)
Transmembrane proteins
c)
Peripheral proteins
d)
Glycoproteins
4.
What are the three important functions of a cell membrane? You will select three answers.
a)
To protect the cell and keep it safe
b)
To control what goes in and out of the cell
c)
To make energy for the cell
d)
To help the cell communicate with other cells
e)
To store food and water
5.

What is a transmembrane protein?

a)

Transmembrane proteins are found only on the outer layer of the cell membrane>

b)

Transmembrane proteins go all the way through the membrane.

c)

Transmembrane proteins help with cell signaling.

d)

Transmembrane proteins are not involved in transport.

6.

What is a peripheral protein?

a)

Peripheral proteins go across the entire membrane.

b)

Peripheral proteins are only on the inside or outside of the membrane.

c)

Peripheral proteins help with making energy.

d)

Peripheral proteins help transport molecules.

7.

Which protein is responsible for transporting substances?

a)

Peripheral

b)

Transmembrane

8.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
9.

D is an example of

a)

cholesterol

b)

phospholipid

c)

glycoprotein

d)

transmembrane protein

10.

Looking at the phospholipids, which part is hydrophilic (water loving)?

a)

head

b)

tail

c)

the middle