Biology

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  • Created by: emmajane_
  • Created on: 12-05-14 19:13
What happens if an animal cell is placed in a solution that has a higher concentration than the cytoplasm?
Water leaves cell by osmosis until it shrinks and dies
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What happens if an animal cell is placed in a solution with a lower concentration than the cytoplasm?
The water will enter the cell by osmosis and burst
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What happens if a plant cell is placed in a higher concentration than the cytoplasm?
Water leaves cell by osmosis and membrane separates from wall. Causes plant to wint
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What happens if a plant cell is put in a concentration lower than the cytoplasm?
Water will enter until cell is fully turgid. Will make plant stay upright
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What is active transport?
The process at which cells absorb substances against the concentration gradient
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Name 2 waysthe effectiveness of an exchange surface in the body is increased
1. Having a larger surface area 2. Being thin, to provide a short diffustion path
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How does the ratio of surface area to volume compare to the size of the organism?
the larger the organism, the smaller their surcace area to volume
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Which 4 things is the food in the small intestine digested in to? What are they absorbed by?
Glucose, amino acids, fatty acids and glyserol. Absorbed by diffusion and active transport
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Card 2

Front

What happens if an animal cell is placed in a solution with a lower concentration than the cytoplasm?

Back

The water will enter the cell by osmosis and burst

Card 3

Front

What happens if a plant cell is placed in a higher concentration than the cytoplasm?

Back

Preview of the front of card 3

Card 4

Front

What happens if a plant cell is put in a concentration lower than the cytoplasm?

Back

Preview of the front of card 4

Card 5

Front

What is active transport?

Back

Preview of the front of card 5
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