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13 Cards in this Set
- Front
- Back
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QUESTION:
What are the 2 substances that ENTER into the cell? |
ANSWER:
FOOD AND OXYGEN |
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QUESTION: What is the type of material that is RELEASED from the CELL into it's environment
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ANSWER:
WASTE AND MATERIALS |
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QUESTION:
This controls what and ENTERS and LEAVES the cell |
ANSWER:
the CELL MEMBRANE |
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QUESTION:
This property that ALLOWS certain things to ENTER and LEAVE the cell is known as |
ANSWER:
SELECTIVE PERMEABILITY |
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QUESTION:
This is the movement of particles from an area where there are MANY to an area where there are FEW |
ANSWER:
DIFFUSION |
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QUESTION:
This occurs when molecules of a substance are spread EVENLY throughout a space |
ANSWER:
EQUILIBRIUM |
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QUESTION:
this is the DIFFUSION of WATER through a cell membrane |
ANSWER:
OSMOSIS |
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QUESTION:
These molecules move from an area where there is a LARGER number to where there is a SMALLER number |
ANSWER:
WATER MOLECULES |
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QUESTION:
What happens to cells if they AREN'T surrounded by relatively PURE WATER ? |
ANSWER:
they will loose water and wilt |
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QUESTION:
What would happen to a cell if it LOST TOO MUCH WATER? |
ANSWER:
cell membrane would pull away from the the cell wall |
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QUESTION:
why did the stalk of celery wilt? |
ANSWER:
because the cell membrane pulled away from the cell wall ( more water left the cells) |
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QUESTION:
What could you do to make the the celery "firm" again? |
ANSWER:
put the celery back into PURE WATER so the cells can move back in and EXPAND to become FIRM again. |
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QUESTION:
DIFFUSION and OSMOSIS occur WITHOUT the use of energy by the cell. These are 2 examples of what |
ANSWER:
PASSIVE TRANSPORT and ACTIVE TRANSPORT |
