The graph shows how the rate of reaction of a carbohydrate-digesting enzyme in the human alimentary canal varies with pH - Leaving Cert Biology - Question 3 - 2006
Question 3
The graph shows how the rate of reaction of a carbohydrate-digesting enzyme in the human alimentary canal varies with pH.
(a) Name a carbohydrate-digesting enzyme i... show full transcript
Worked Solution & Example Answer:The graph shows how the rate of reaction of a carbohydrate-digesting enzyme in the human alimentary canal varies with pH - Leaving Cert Biology - Question 3 - 2006
Step 1
Name a carbohydrate-digesting enzyme in the human alimentary canal.
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Answer
The enzyme is called amylase.
Step 2
Where in the alimentary canal does this enzyme act?
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Answer
Amylase acts primarily in the mouth and small intestine.
Step 3
State the enzyme's product(s).
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Answer
The product of amylase is a matching carbohydrate product, specifically maltose and other sugars.
Step 4
What is the pH at A?
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Answer
The pH at point A is between 7 and 9.
Step 5
A is said to be the enzyme's …………………… pH.
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Answer
A is said to be the enzyme's optimum pH.
Step 6
Suggest a temperature at which human enzymes work best.
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Human enzymes work best at a temperature range of 35 °C to 40 °C.
Step 7
What term best describes the shape of an enzyme?
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Answer
The shape of an enzyme is best described as folded.
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