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Osmosis And Diffusion
Test Description: Review of the basics for 7th grade
Instructions: Answer all questions to get your test result.
1) Movement of particles from high to low concentration is
A
cell transport
B
filtering
C
diffusion
D
osmosis
2) A membrane that allows only certain substances to pass through
A
biomembrane
B
osmotic membrane
C
selectively permeable
D
diffusable
3) Diffusion of water through a selectively permeable membrane
A
osmosis
B
soaking
C
absorbing
D
spreading
4) Builds up inside a plant cell placed in pure water
A
diffusion pressure
B
salt
C
plasmolysis
D
turgor pressure
5) When the contents of a plant cell shrivel due to water loss
A
turgor pressure
B
plasmolysis
C
shrinking
D
cytolysis
6) An animal cell placed in 100% water will
A
swell and burst
B
shrivel
C
stay the same
D
undergo plasmolysis
7) When the concentration of water inside and outside the cell is the same
A
osmosis
B
equilibrium
C
static condition
D
saturation
8) An animal cell placed in salt water will
A
do nothing
B
burst
C
shrivel
D
swell
9) Which is not a reason why diffusion is important?
A
it is how oxygen gets from our lungs to our blood
B
It is how water gets from soil into roots
C
It is how nutrients get from our intestines into our blood
D
It is how messages get from our senses to our brain
10) Increasing temperature does which of the following to the rate of diffusion?
A
nothing
B
slows it down
C
stops it
D
speeds it up
*select an answer for all questions
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