WorksheetsOsmosis and Diffusion
Total questions: 20
Worksheet time: 20mins
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)
no movement
d)
molecules move everywhere
2.
Where is there a high concentration of water?
a)
in the flower
b)
cannot be determined by picture.
c)
in the vase
d)
in the leaves
3.
Where is there a high concentration of bbq smoke?
a)
In the bbq pit
b)
In the house
c)
Two streets over
d)
In the atmosphere
4.
When a person smells something, what is actually traveling up their nose?
a)
solids
b)
molecules
c)
matter
d)
plasma
5.
What is the definition of Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration (where the molecules are more crowded together) to a area of low concentration (where molecules are more spread apart)
6.
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
7.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
8.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
9.
_______ regulates what enters and leaves a cell.
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
10.
Equilibrium?
a)
a large amount of substance on side of the cell and a small amount on the other side
b)
a small amount of substance on side of the cell and a large amount on the otherside
c)
equal amount of substance on either side of the membrane
d)
no particles on either side of the a cell membrane
11.
What is the definition of Osmosis?
a)
the movement of WATER molecules across the cell membrane.
b)
the state where molecules are equally concentrated (balanced) on both sides of the cell membrane.
c)
the process that brings LARGE particles INTO the cell through the cell membrane
d)
he movement of molecules across the cell membrane that REQUIRES ENERGY output from the cell
12.
What is the definition of Equilibrium?
a)
the process that brings LARGE particles INTO the cell through the cell membrane
b)
The movement of molecules from an area of high concentration (where the molecules are more crowded together) to a area of low concentration (where molecules are more spread apart)
c)
the state where molecules are equally concentrated (balanced) on both sides of the cell membrane.
d)
the movement of WATER molecules across the cell membrane.
13.
In the given scenario what will happen to the organism: salt is poured onto eggplant.
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.
14.
In the given scenario what will happen? An egg is placed in pure water for 48 hours.
a)
The egg will gain water and swell.
b)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
c)
The egg will lose water and shrink.
15.
Which example(s) of cell transport does not require chemical energy
a)
Drops of blue food coloring are placed in water and spread throughout the water, turning it blue.
b)
A potato slice is placed in water and water molecules from outside the potato move into the potato cells.
c)
Both Answers
d)
Neither answers
16.
The diagram shows various molecules that move into and out of the cell. How does molecule C move out the cell?
a)
Active Transport
b)
Diffusion
c)
The use of a protein pump
d)
Manipulated osmosis
17.
An animal cell placed in a hypertonic (salty) solution will
a)
Shrink
b)
Swell
c)
Stay the same
18.
How many diamond molecules need to move to reach equilibrium?
a)
A net of 2 molecules move inside the cell.
b)
A net of 2 molecules move outside the cell.
c)
There is no net movement because the molecules are at equilibrium.
d)
The molecules do not move.
19.
Which way will the water molecules move during osmosis?
a)
Out of the cell, so the cell shrinks.
b)
Out of the cell, so the cell swells.
c)
Into the cell, so the cell shrinks.
d)
Into the cell, so the cell swells.
20.
Just like Coke is a type of soda, __________ is a type of ___________.
a)
diffusion, osmosis
b)
concentration, equilibrium
c)
equilibrium, concentration
d)
osmosis, diffusion
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