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Diffusion & Osmosis

Total questions: 10

Worksheet time: 33mins

Name
Class
Date
1.

What is diffusion?

a)

When molecules move from a low concentration to a high concentration

b)

When molecules move from a high concentration to a low concentration.

c)

When there is no movement of molecules

d)

When molecules move everywhere regardless of concentration

2.

Osmosis is specifically.....

a)

diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration

b)

the diffusion of particles from an area of high concentration to an area of low concentration

c)

diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration

d)

the diffusion of particles from an area of low concentration to an area of high concentration

3.

Equilibrium is when....

a)

there is a large amount of substance on the inside of the cell and a small amount in the outside solution

b)

there is a small amount of substance on the inside of the cell and a large amount in the outside solution

c)

there is an equal amount of substance on either side of the cell membrane

d)

there are no particles on either side of the the cell membrane

4.
Where is there a low concentration of perfume?
a)
in the bottle
b)
on the hand
c)
in the room
d)
in the top
5.

Which gummy bear was left overnight in salt water?

a)

Larger bear

b)

Smaller bear

6.

Which cell is in a hypertonic environment?

a)

A

b)

B

c)

C

d)

None of them are hypertonic

7.

Which cell is in an isotonic environment?

a)

A

b)

B

c)

C

d)

None of them are isotonic

8.
The cells seem to be shriveled and dehydrated what type of solution are they most likely in?
a)
Hypertonic
b)
Isotonic
c)
Hypotonic
d)
Inertonic
9.

Movement of solute, NOT WATER, through the cell membrane from high to low concentration.

a)

diffusion

b)

active transport

c)

facilitated diffusion

d)

osmosis

10.
If you are stranded at sea why is it safer to drink urine than sea water?
a)
One cup of sea water has enough sodium to poison you.
b)
Sea water is hypertonic to your cells and will only further dehydrate you.
c)
Sea water is too isotonic to your cells and you will absorb too much water.
d)
The salt will cause high blood pressure and you will die from a stroke.