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Cell Membrane
Test Description: Cell Membrane
Instructions: Answer all questions to get your test result.
1) Phospholipids are an example of which macromolecule?
A
lipids
B
proteins
C
nucleic acids
D
carbohydrates
2) ______________________ is responsible for helping the cell membrane to act like a fluid
A
proteins
B
cholesterol
C
hydrophobic heads
D
cell membrane
3) The cell membrane helps to maintain ____________ by regulating what enters and leaves the cell
A
homeostasis
B
structure
C
protection
D
fluidity
4) What are some terms that describe the phospholipids head?
A
head and hydrophobic
B
non polar and hydrophobic
C
polar and tail
D
polar and hydrophilic
5) Which term does not describe the tails of a phospholipid?
A
hydrophobic
B
polar
C
protein
D
hydrophilic
6) What do proteins do for the cell membrane?
A
Provides protection for the cell
B
Provide structure
C
Transport large molecules that cannot go through the cell membrane.
D
Communicate to other cells, used as identification, transport substances
7) Which is a true statement about the phospholipid bilayer?
A
Hydrophobic heads only face the outside of the cell
B
Hydrophilic tails face each other
C
Hydrophilic heads face the inside and outside of the cell
D
Hydrophobic tails face the inside and outside of the cell
8) Which is not another name for the structure that regulates what enters and leaves the cell?
A
fluid mosaic model
B
phospholipids
C
cell membrane
D
plasma membrane
9) Hydrophobic means
A
tail
B
water loving
C
non polar
D
water fearing
10) What would happen if cholesterol in the cell membrane stopped working properly?
A
The cell membrane will only allow substances to enter the cell. Substances will not be able to leave.
B
The cell membrane will become solid and not allow substances through.
C
The cell membrane will be more fluid like and break apart.
D
The cell membrane will continue to allow materials into and out of the cell.
*select an answer for all questions
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