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diffusion and osmosis

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
2.
Where is there a low concentration of dye?
a)
at the bottom of cup
b)
in the color
c)
at the top of cup 
d)
no concenteraion gradient
3.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
4.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
5.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
6.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
7.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
8.

Osmosis is:

a)

The movement of water molecules from an area of high concentration to an area of lower concentration through a fully permeable membrane

b)

The movement of water molecules from an area of high water potential to an area of lower water potential through a semipermeable membrane

c)

Movement of water from an area of low concentration to high concentration

d)

A strange word

9.
Where is there a low concentration of perfume?
a)
in the bottle
b)
on the hand
c)
in the room
d)
in the top
10.

Which gummy bear was left overnight in salt water?

a)

Larger bear

b)

Smaller bear

11.
_______ regulates what enters and leaves a cell.  
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
12.
Osmosis
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
13.

Which cell is in a hypertonic environment?

a)

A

b)

B

c)

C

d)

None of them are hypertonic

14.

Which cell is in an isotonic environment?

a)

A

b)

B

c)

C

d)

None of them are isotonic

15.
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
16.

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

a)

diffusion

b)

active transport

c)

facilitated diffusion

d)

osmosis

17.

The picture shows an example of what type of solution?

a)

hypertonic

b)

hypotonic

c)

isotonic

18.

If salt is poured onto a slice of eggplant, what do you predict will happen?

a)

Water will move out of the eggplant cells and the cells will shrink.

b)

Water will move out of the eggplant cells and the cells will swell.

c)

Water will move into the eggplant cells and the cells will swell.

19.

What is DIFFUSION?

a)
b)
c)
d)
20.
Which diagram best shows the end result of diffusion?
a)
F
b)
G
c)
H
d)
J