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Cell Membranes And Cell Walls
Test Description: Test review!
Instructions: Answer all questions to get your test result.
1) The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substances are blocked from coming in, this membrane is
A
permeable
B
perforated
C
non-conductive
D
semi-permable
2) Cells use passive and active transport to move materials across the cell membrane to keep a constant internal environment. What is this process called?
A
respiration
B
diffusion
C
homeostasis
D
evolution
3) If placed in a hypertonic solution, a plant cell will
A
swell
B
shrink in size
C
burst
D
remain constant in size
4) Which of these is a function of the cell membrane in all cells?
A
preserving cellular wastes
B
neutralizing chemicals
C
producing cellular nutrients
D
maintaining homeostais
5) Active transport performs which function in a cell?
A
packages proteins for export from the cell
B
distributes enzymes throughout the cytoplasm
C
moves substances against a concentration gradient
D
equalizes the concentration of water inside and outside the cell
6) What is the main function of the cell wall?
A
store carbohydrates for later use
B
carry out photosynthesis
C
package proteins for export
D
provide rigid structure for cell
7) Which transport process always involves the movement of materials from inside the cell to outside the cell?
A
exocytosis
B
phagocytosis
C
endocytosis
D
diffusion
8) A molecule that moves across a cell membrane without using the cell's energy tends to move
A
away from the area of equilibrium.
B
away from the area where it is less concentrated
C
toward the area where it is more concentrated
D
away from the area where it is more concentrated
9) Diffusion is the movement of a substance
A
only air
B
only in liquids
C
only through the lipid bilayer
D
from an area of high concentration to an area of low concentration
10) Molecules that are too large to moved through the cell membrane can be transported into the cell by
A
osmosis
B
exocytosis
C
endocytosis
D
diffusion
*select an answer for all questions
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