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- 1. Multiple Choice
Diffusion occurs only in solids
True
False
- 2. Multiple Choice
What is a solute?
A substance dissolved in another substance
the substance doing the dissolving
- 3. Multiple Choice
What is a solvent
The one doing the dissolving
The substance dissoved in another substance
- 4. 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
- 5. Multiple Choice
How long does diffusion last?
Until the concentration of particles in the system is equal
(Select this answer and I swear i'll make it harder for you in the assessment task)
Until a region in the system has a greater concentration of particles than the other
Until the particles disappear from the system
- 6. Multiple Choice
What happens to the concentration of carbon dioxide in you cells when you exercise
Increase
Decrease
Remain constant
- 7. Multiple Choice
What hapens to the concentration of oxygen in the body cells when you exercise?
Increase
Decrease
Remain constant
- 8. Multiple Choice
How does the body remove carbon dioxide from the cells?
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
- 9. 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
- 10. 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
- 11. Multiple Choice
Which diagram best shows the end result of diffusion?
F
G
H
J
- 12. 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
- 13. Multiple Choice
Diffusion moves along the __________
concentration gradient
Avogadro's constant
conservation of energy
- 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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