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- 1. Multiple ChoiceWhen particles move from areas of high concentration to areas less concentrated, this has taken place.diffusionmitosisendocytosisphotosynthesis
- 2. Multiple Choice
Which diagram best shows the end result of diffusion?FGHJ - 3. Multiple ChoiceThe picture is an example of _________________.isotonicdiffusionosmosisactive transport
- 4. Multiple ChoiceWhere is there a high concentration of bbq smoke?In the bbq pitIn the houseTwo streets overIn the atmosphere
- 5. Multiple ChoiceA student put a few drops of lemon juice into an uninflated balloon.The student tied a knot in the balloon, placed it in a shoe box, and covered it with a lid. The following day, the student opened the box and was able to smell lemon in the box. Through what process were molecules able to pass through the balloon?respirationfermentationosmosisdiffusion
- 6. Multiple ChoiceWhat does “high concentration area” mean?Spread outTightly packed togetherUncrowdedSpacious
- 7. Multiple ChoiceDiffusion is the movement of molecules from an area of _____ concentration to an ______ concentrationHigh, lowLow, highLow, low,High, high
- 8. Multiple Choice
In diffusion, particles move down a _______ ________
Concentrate gradient
Conceited gradient
Concentration gradient
Concentrated orange juice
- 9. Multiple ChoiceIf there is more oxygen in the blood than in an organ, which direction would the oxygen move?Out of the bloodInto the blood
- 10. Multiple ChoiceA higher concentration gradient, slows down diffusion. True or false?TrueFalse
- 11. Multiple ChoiceAn increase in temperature does what to diffusion?Speeds it upSlows it downHas no effectI wish i knew. Really I do.
- 12. Multiple Choice
Where is there a low concentration of dye?
at the bottom of cup
in the color
at the top of cup
no concenteraion gradient
- 13. Multiple Choice
The picture below is an example of _________________.
osmosis
isotonic
diffusion
active transport
- 14. Multiple ChoiceWhat is diffusion?when molecules movewhen molecules move from a high concentration to a low concentration.no movementmolecules move everywhere
- 15. Multiple ChoiceWhere is there a low concentration of perfume?in the bottleon the handin the roomin the top
- 16. Multiple ChoiceThe term used to describe when some molecules are able to pass through a membrane and others are not.OsmosisDiffusionSelective PermeabilityEquilibrium
- 17. Multiple ChoiceMolecules will move from an area of high concentration to an area of low concentration until they reachosmosisequilibriumselective permeabilitydiffusion
- 18. Multiple Choice
_____________ is the free movement of particles across the membrane with the concentration gradient
diffusion
facilitated diffusion
active transport
fusion
- 19. Multiple Choice
An example of diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Exocytosis
- 20. Multiple Choice
Diffusion occurs only in solids
True
False
- 21. Multiple Choice
What is a solute?
A substance dissolved in another substance
the substance doing the dissolving
- 22. Multiple Choice
What is a solvent
The one doing the dissolving
The substance dissoved in another substance
- 23. 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
- 24. 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
- 25. Multiple Choice
What happens to the concentration of carbon dioxide in your cells when you exercise
Increase
Decrease
Remain constant
- 26. Multiple Choice
What hapens to the concentration of oxygen in the body cells when you exercise?
Increase
Decrease
Remain constant
- 27. 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
- 28. 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
- 29. 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
- 30. 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
- 31. Multiple Choice
Diffusion moves along the __________
concentration gradient
Avogadro's constant
conservation of energy
- 32. 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
- 33. Multiple Choice
What is DIFFUSION?
- 34. Multiple ChoiceWhat is the definition of Selective Permeability?The movement of materials across the cell membrane that requires NO ENERGY from the cell.The movement of materials through (or across) the cell membraneThe ability of the cell membrane to allow some things to pass through while preventing other things from passing through.The movement of molecules from an area of high concentration to a area of low concentration
- 35. Multiple Choice
If there is 5 percent water inside a cell and 5 percent water outside a cell
more water will move inside the cell
more water will move outside the cell
There will be no net movement of water cells
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