It acts in the small intestine to neutralise the acid from the stomach.
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Do enzymes in the small intestine prefer alkaline or acidic conditions?
Alkaline (this is why bile is added to neutralise the acid, it also makes the solution slightly alkaline).
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Which sort of organisms produce enzymes which pass out of cells?
Microorganisms.
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How are microorganisms which secrete enzymes useful?
They have many uses in the home (eg. biological detergents) and in industry (eg. baby food).
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Which two enzymes are present in biological detergents?
Proteases and lipases.
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How does having enzymes in biological detergents help them to perform better?
They are more effective at low temperatures (high temperatures will denature the enzymes in them).
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How are proteases used in industry?
Proteases are used to 'pre-digest' baby food (making it easier for babies to digest their foods).
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How is carbohydrases used in industry?
Carbohydrases are used to convert starch into sugar syrup.
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How is isomerase used in industry?
Isomerase is used to convert glucose syrup into fructose syrup. This is much sweeter, and therefore can be used in smaller quantities in slimming foods.
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What are the advantages of using enzymes in industry?
Enzymes are catalysts - they can bring about reactions at normal temperatures and pressures that would otherwise be expensive and energy demanding.
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What are the disadvantages of using enzymes in industry?
Enzymes are denatures at high temperatures, and are expensive to produce.
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Other cards in this set
Card 2
Front
What does bile do?
Back
It acts in the small intestine to neutralise the acid from the stomach.
Card 3
Front
Do enzymes in the small intestine prefer alkaline or acidic conditions?
Back
Card 4
Front
Which sort of organisms produce enzymes which pass out of cells?
Back
Card 5
Front
How are microorganisms which secrete enzymes useful?
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