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Which of the following enzymes is not produced by baker’s yeast?

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in Biology – Class 12 by (271k points)
Which of the following enzymes is not produced by baker’s yeast?

(a) Amylase

(b) Maltase

(c) Zymase

(d) Lactase

I had been asked this question in an interview.

Origin of the question is Microbes in Household Products-1 topic in section Microbes in Human Welfare of Biology – Class 12

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Best answer
The correct answer is (d) Lactase

The best I can explain: Baker’s yeast produces 3 enzymes namely-amylase, maltase and zymase. Amylase changes a small amount of starch into maltose. Maltase changes maltose to glucose and zymase acts on glucose to form bubbles of ethyl alcohol and carbon dioxide.

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