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- 1. Multiple Choice
I placed a drop of blue ink into a test tube full of jelly. What process explains what will happen next?
Transpiration
Diffusion
Osmosis
Active Transport
- 2. Multiple Choice
Of the following options, which would SLOW diffusion?
Smaller Molecules
Larger Surface Area
Smaller Concentration Gradient
Higher Temperature
- 3. Multiple Choice
Which of the following explains why particles move from an area of high concentration to an area of low concentration?
Magic.
The random motion of particles in a liquid or gas
They get too crowded when they are close to each other.
They have the same charge and are repelled.
- 4. Multiple Choice
A frog's skin is permeable to oxygen and carbon dioxide. When a frog is swimming in pond water, which direction with oxygen and carbon dioxide diffuse?
Carbon dioxide and oxygen both diffuse out of the frog.
Carbon dioxide and oxygen both diffuse into the frog.
Oxygen diffuses out of the frog, and carbon dioxide diffuses into the frog.
Carbon dioxide diffuses out of the frog, and oxygen diffuses into the frog.
- 5. Multiple Choice
How do carbon dioxide and oxygen move in and out of the alveoli wall cells?
Active Transport
Diffusion
Respiration
Transpiration
- 6. Multiple Choice
The dots represent the molecules of gas in four tubes at the beginning of an experiment. In which tube will more molecules move from X to Y?
A
B
C
D
- 7. Multiple Choice
____________ requires no energy, and only moves particles down their concentration gradient.
Active Transport
Translocation
Transpiration
Passive Movement
- 8. Multiple Choice
Diffusion occurs only in solids
True
False
- 9. Multiple Choice
How do the particles move in diffusion?
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
- 10. Multiple Choice
The movement of particles is __________, resulting in the particles being spread throughout the container
Structured
In a straight line
Random
In curved, way motions
- 11. Multiple Choice
What happens to the coffee particles when coffee is added to hot water?
They sink to the bottom of the cup
They spread out
They clump together
- 12. Multiple Choice
Which diagram best shows the end result of diffusion?
F
G
H
J
- 13. Multiple Choice
What does a 'region with high concentration' mean?
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
- 14. Multiple Choice
When does diffusion stop?
After a day and a night
When the particles are evenly spread out
When there are no particles left
When all the particles leave the system
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