8. (a) (i) To which group of biomolecules do enzymes belong?
(ii) Give one biological explanation why washing powder may contain enzymes - Leaving Cert Biology - Question 8 - 2016
Question 8
8.
(a) (i) To which group of biomolecules do enzymes belong?
(ii) Give one biological explanation why washing powder may contain enzymes.
(b) Answer the followi... show full transcript
Worked Solution & Example Answer:8. (a) (i) To which group of biomolecules do enzymes belong?
(ii) Give one biological explanation why washing powder may contain enzymes - Leaving Cert Biology - Question 8 - 2016
Step 1
(i) To which group of biomolecules do enzymes belong?
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Answer
Enzymes belong to the group of biomolecules known as proteins.
Step 2
(ii) Give one biological explanation why washing powder may contain enzymes.
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Answer
Washing powders may contain enzymes because they help to break down or digest organic matter, such as stains from food and oils on clothing, making them more effective in cleaning.
Step 3
(i) Name the enzyme you used in this investigation.
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Answer
The enzyme used in this investigation is amylase.
Step 4
(ii) Name the substrate of this enzyme.
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Answer
The substrate for amylase is starch.
Step 5
(iii) How did you vary the pH?
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Answer
For example, solutions of pH 4, 6, 8, and 10 were used in the experiment.
Step 6
(iv) Name one factor you kept constant.
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One factor that was kept constant is the temperature of the reaction.
Step 7
(v) How did you keep this factor constant?
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This factor was kept constant by conducting all experiments in a water bath set to a specific temperature.
Step 8
(vi) How did you measure the rate of enzyme activity?
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The rate of enzyme activity was measured by determining the amount of product formed over a specific period of time, typically by using colorimetric methods or through a titration process.
Step 9
(vii) What was the result of your investigation?
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The results indicated that the optimum pH for enzyme activity was between pH 4 and 10, with the rate of reaction decreasing significantly outside this range.
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