Martin is studying sucrase activity. He added sucrose solution + sucrase solution + buffer of pH 5.6 in two tubes. He incubated them at 35°C and 100°C respectively. When he performed a confirmatory test, only the first test tube showed enzyme activity. How would you justify the inactivity of the enzyme in the second test tube?

a. the enzymes in the second test tube must have denatured at ph 5.6 since most enzymes work at neutral ph

b. The enzymes in the second test tube must have denatured at 1000C, since most enzymes degrade at such high temperatures.

c. Enzymes must have remained dormant at 1000C, since most of the enzymes remain inactive at such higher temperatures.

Question

Ashton

Biology

18 November, 08:04

Martin is studying sucrase activity. He added sucrose solution + sucrase solution + buffer of pH 5.6 in two tubes. He incubated them at 35°C and 100°C respectively. When he performed a confirmatory test, only the first test tube showed enzyme activity. How would you justify the inactivity of the enzyme in the second test tube?

a. the enzymes in the second test tube must have denatured at ph 5.6 since most enzymes work at neutral ph

b. The enzymes in the second test tube must have denatured at 1000C, since most enzymes degrade at such high temperatures.

c. Enzymes must have remained dormant at 1000C, since most of the enzymes remain inactive at such higher temperatures.

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Answers (1)

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Stephen Cuevas · Answer 1

B. At high temperatures, the active site of the enzyme is damaged and it is no longer able to attack itself to the required substrate as its shape will no longer match.