biology flashcards part 1

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  • Created by: natalie
  • Created on: 10-05-13 21:19
where is amylase made?
salivary glands, pancreas, lining of small intestine
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what does amylase do and where?
catalyses the breakdown of starch molecules into sugar molecules in the mouth and small intestine
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where is protease made?
stomach, pancreas, lining of small intestine
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what does protease do and where?
catalyses the breakdown of protein into amino acids in the stomach and small intestine
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where is lipase made?
pancreas, lining of the small intestine
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what does lipase do and where?
catalyses the breakdown of lipid molecules into fatty acid and glycerol molecules in the small intestine
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how are red blood cells specialised to their job?
large surface area though small so fits in narrow blood streams, contains haemoglobin which binds reversibly to oxygen so it can be transported around the body
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how are nerve cells specialised to their job?
many short extensions at the end of the nerve which allows it to receive impulses, nerve fibres insulated with fatty sheath which prevents loss of impulse
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how are ciliated epithetical cells specialised to their job?
tall column shaped, cells can pack tightly top pack side by side, each cell is covered with cilia and the cilia beats to create a current so particles can move up and out the windpipe
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what is diffusion?
movement of particles from an area of where they are in high concentration to an area of low concentration along a concentration gradient
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3 factors that affect the rate of diffusion
distance, concentration gradient and surface area
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Other cards in this set

Card 2

Front

what does amylase do and where?

Back

catalyses the breakdown of starch molecules into sugar molecules in the mouth and small intestine

Card 3

Front

where is protease made?

Back

Preview of the front of card 3

Card 4

Front

what does protease do and where?

Back

Preview of the front of card 4

Card 5

Front

where is lipase made?

Back

Preview of the front of card 5
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