biology 3

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  • Created by: siobhan5
  • Created on: 25-03-15 17:36
which two factors can alter the shape of an enzyme?
temperature and pH
1 of 10
where is amylase produced?
salivary glands, pancreas and the small intestine.
2 of 10
what are the products of lipid (fat) digestion?
fatty acids and glycerol.
3 of 10
which acid is produced by the stomach ?
hydrochloric acid.
4 of 10
what is the function of bile?
Bile neutralises the stomach acid when food passes into the small intestine.
5 of 10
why are proteases used in baby foods?
the protease pre-digests the protein to make it easier for the baby to absorb.
6 of 10
give two types of reaction controlled by enzymes in the cells.
two of: builds large molecules from small molecules, changes one molecule into another, breaks down large molecules into small molecules.
7 of 10
why does increasing the temperature increase the rate of a reaction?
the molecules have more energy so they move around faster and collide more often and more vigorously so there are more frequent collisions in a given time.
8 of 10
give one advantage and one disadvantage of using enzymes in industry.
Advantage: less energy or expensive equipment is needed because the reactions can take place at normal temperature and pressure. Disadvantage: costly to produce and can denature at high temperatures.
9 of 10
why do biological washing powders work more efficiently than non-biological powders?
the enzymes speed up the digestion of stains from food, blood, and grass, plus lower temperatures can be used in washing machines.
10 of 10

Other cards in this set

Card 2

Front

where is amylase produced?

Back

salivary glands, pancreas and the small intestine.

Card 3

Front

what are the products of lipid (fat) digestion?

Back

Preview of the front of card 3

Card 4

Front

which acid is produced by the stomach ?

Back

Preview of the front of card 4

Card 5

Front

what is the function of bile?

Back

Preview of the front of card 5
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