Diffusion | Science Quiz

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Diffusion

7th - 8th grade

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21 days ago by

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Question 1
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Q.
Diffusion occurs only in gases
answer choices
True
False
True
alternatives
False
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Question 2
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Q.
How do the particles move in diffusion?
answer choices
From a region of low concentration to a region of high concentration
From a region of high concentration to a region of low concentration
From a region of low concentration to a region of low concentration
From a region of high concentration to a region of high concentration
From a region of low concentration to a region of high concentration 
alternatives
From a region of high concentration to a region of low concentration 
From a region of low concentration to a region of low concentration 
From a region of high concentration to a region of high concentration 
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Question 3
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Q.
How does the body remove carbon dioxide from the cells?
answer choices
The body cells converts carbon dioxide into carbon monoxide
The body cells don't expel the waste, they store them for future use
The body cells expel the carbon dioxide through the use of the nucleus
The carbon dioide diffuses out of the body cells and into the bloodstream due to differences in the concentration gradient
The body cells converts carbon dioxide into carbon monoxide 
alternatives
The body cells don't expel the waste, they store them for future use
The body cells expel the carbon dioxide through the use of the nucleus 
The carbon dioide diffuses out of the body cells and into the bloodstream due to differences in the concentration gradient
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Question 4
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The movement of particles is __________, resulting in the particles being spread throughout the container
answer choices
Structured
In a straight line
Random
In curved, way motions
Structured
alternatives
In a straight line
Random 
In curved, way motions
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Question 5
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What does a 'region with high concentration' mean?
answer choices
An area with a SMALL number of particles
An area with a LARGE number of particles
An area with an UNEVEN number of particles
An area with no particles
An area with a SMALL number of particles
alternatives
An area with a LARGE number of particles 
An area with an UNEVEN number of particles 
An area with no particles
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Question 6
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Q.
The picture below is an example of _________________.
answer choices
osmosis
isotonic
diffusion
active transport
osmosis
alternatives
isotonic
diffusion
active transport
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Question 7
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Q.
How long does diffusion last?
answer choices
Until the concentration of particles in the system is equal
Until a region in the system has a smaller concentration of particles than the other
Until a region in the system has a greater concentration of particles than the other
Until the particles disappear from the system
Until the concentration of particles in the system is equal
alternatives
Until a region in the system has a smaller concentration of particles than the other
Until a region in the system has a greater concentration of particles than the other
Until the particles disappear from the system
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Question 8
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Q. How does the concentration gradient affect diffusion?
answer choices
The greater the concentration difference the faster the rate
The smaller the concentration difference the faster the rate
The greater the concentration the slower the rate
The greater the concentration difference the faster the rate
alternatives
The smaller the concentration difference the faster the rate
The greater the concentration the slower the rate
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Question 9
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Q. How does surface area affect the rate of diffusion?
answer choices
Greater the surface area the slower the rate
Greater the surface area the faster the rate
Smaller the surface area the faster the rate
Surface area does not affect diffusion
Greater the surface area the slower the rate
alternatives
Greater the surface area the faster the rate
Smaller the surface area the faster the rate
Surface area does not affect diffusion
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Question 10
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Q.
How does increasing temperature affect the rate of diffusion?
answer choices
molecules move in orderly manner
Gives molecules more energy increasing the rate
Takes energy away from molecules slowing down the rate
collision of molecules slows down
molecules move in orderly manner 
alternatives
Gives molecules more energy increasing the rate
Takes energy away from molecules slowing down the rate
collision of molecules slows down 
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Question 11
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Q. Why is diffusion important?
answer choices
Molecules need to be moved out of cells
Cells need a constant supply of some molecules whilst getting rid of others
There is no other way of transporting things in or out of a cell
It requires energy which is always being produced and needs to be used up
Molecules need to be moved out of cells
alternatives
Cells need a constant supply of some molecules whilst getting rid of others
There is no other way of transporting things in or out of a cell
It requires energy which is always being produced and needs to be used up
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Question 12
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Q.
Where is there a low concentration of dye?
answer choices
at the bottom of cup
in the color
at the top of cup
no concenteraion gradient
at the bottom of cup
alternatives
in the color
at the top of cup 
no concenteraion gradient
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Question 13
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Q. The faster an object moves, the ________ kinetic energy it has.
answer choices
more
less
none of the above
all of the above
more
alternatives
less
none of the above
all of the above
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Question 14
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Q.
There are 24 molecules inside this cell. AFTER diffusion, how many molecules would be inside and how many would be outside?
answer choices
There would be 12 inside and 12 outside
There would be 0 inside and 24 outside
The cell will stay the same with 24 inside
There will be 20 inside and 4 outside
There would be 12 inside and 12 outside
alternatives
There would be 0 inside and 24 outside
The cell will stay the same with 24 inside
There will be 20 inside and 4 outside
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Question 15
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Q.
Why does the tea move out of the tea bag and into the water?
answer choices
The warm water forces it out of the tea bag
There is equal concentration of water and tea
There is a higher concentration of tea in the bag and less in the water
There is a lower concentration of tea in the bag and more in the water
The warm water forces it out of the tea bag
alternatives
There is equal concentration of water and tea 
There is a higher concentration of tea in the bag and less in the water
There is a lower concentration of tea in the bag and more in the water
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Question 16
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_________ particle size allows for a larger surface area to be exposed for the reaction.
answer choices
larger
smaller
larger
alternatives
smaller
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Question 17
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Why do large multicellular organisms need transport systems while simple unicellular organisms do not?
answer choices
Large organisms have a much smaller surface area to volume ratio compared to smaller ones.
Diffusion does not work in large multicellular organisms.
Unicellular organisms have a much smaller surface area to volume ratio than multicellular organisms.
Large organisms have a much smaller surface area to volume ratio compared to smaller ones.
alternatives
Diffusion does not work in large multicellular organisms.
Unicellular organisms have a much smaller surface area to volume ratio than multicellular organisms.
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Question 18
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Q.
Diffusion can occur in solids, liquids and gaseous materials
answer choices
True
False
True
alternatives
False
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Question 19
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Q.
Which of the following factors does NOT have a direct influence on the rate of diffusion?
answer choices
Molecule size
Temperature
Color
Concentration
Molecule size 
alternatives
Temperature 
Color
Concentration
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Question 20
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Q. Which diagram best shows the end result of diffusion?
answer choices
F
G
H
J
F
alternatives
G
H
J
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