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Cell Membranes
Test Description: Quiz Review
Instructions: Answer all questions to get your test result.
1) Integral proteins DO NOT go all the way through a cell membrane.
A
False
B
True
2) Proteins are made of...
A
cholestrol
B
lipids
C
none of these
D
amino acids
3) Integral proteins allow the passage of...
A
large molecules brought in through vesicles
B
small polar molecules
C
small molecules brought out through vesicles
D
small nonpolar molecules
4) Surface proteins are located on...
A
all the way through the membrane
B
one side of the cell
5) Glycoproteins have what attached to them?
A
amino acid chain
B
dna chain
C
carbohydrate chain
D
lipid chain
6) Steroids are made up of how many rings?
A
3
B
4
C
1
D
2
7) What is the function of a steroid in the cell membrane?
A
makes cell membranes more rigid
B
allows nonpolar molecules through the membrane
C
allows polar molecules through the membrane
8) Diffusion allows materials to move from ______ concentrations to _____concentrations.
A
higher to lower
B
lower to higher
C
lower to lower
D
higher to higher
9) What is osmosis?
A
The diffusion of water into and out of a cell
B
Using a vesicle to pull materials into a cell.
C
Using a vesicle to push materials out of a cell.
D
The movement of any material from a higher to lower concentration
10) The rate of osmosis depends of how much material is in a solution?
A
True
B
False
*select an answer for all questions
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