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O-LevelBiologyEnzymes5090/11 · May/June 2015 · Q271 Mark

The fungus Penicillium is grown in fermenters to make penicillin. The table shows the time taken for the mycelium of the fungus to double in size with different types of carbohydrate. All other conditions were kept constant. [Figure 27.1] What can be concluded from the data?

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AGlucose molecules are larger than maltose molecules.
BPenicillium does not produce amylase.
CPenicillium does not produce protease.
DPenicillium takes longer to use starch than to use sugars.

✓ Correct answer

D: Penicillium takes longer to use starch than to use sugars.

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About this question

Topic
Enzymes, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2015 Paper 1 Variant 1, question 27.

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