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Igcse Biology

7. Human Nutrition

0/30 Dr Dabour Hub Science Diagram and Course Material

14. Coordination and Response

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16. Reproduction

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17. Inheritance

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19. Organisms and their Environment

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Quiz

5.2 Effect of Temperature, Ph – Assignment: extra practice

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Effect of Temperature, Ph IGCSE Biology extra practice questions: free practice for IGCSE Biology. Work through these Effect of Temperature, Ph IGCSE Biology extra practice questions and get instant feedback on every answer. If you get stuck, review the 5.2 Effect of temperature and pH on enzymes — Notes lesson. More practice: IGCSE Biology — all units. Syllabus: Cambridge IGCSE Biology 0610 syllabus.

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IGCSE Biology 5.2 Effect of Temperature, Ph - Question 11
IGCSE Biology 5.2 Effect of Temperature, Ph - Question 11
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IGCSE Biology 5.2 Effect of Temperature, Ph - Question 12
IGCSE Biology 5.2 Effect of Temperature, Ph - Question 12
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IGCSE Biology 5.2 Effect of Temperature, Ph - Question 13
IGCSE Biology 5.2 Effect of Temperature, Ph - Question 13
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IGCSE Biology 5.2 Effect of Temperature, Ph - Question 14
IGCSE Biology 5.2 Effect of Temperature, Ph - Question 14
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IGCSE Biology 5.2 Effect of Temperature, Ph - Question 15
IGCSE Biology 5.2 Effect of Temperature, Ph - Question 15
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6.
What happens to most enzymes above about 50 °C?
They multiply
They become substrates
They are denatured
They work faster forever
7.
Denaturation changes the shape of the:
Active site
Cell wall
Product
Substrate
8.
Pepsin in the stomach works best at:
Low (acidic) pH
High (alkaline) pH
pH 14
pH 7
9.
At low temperatures, enzyme activity is slow because:
There is no substrate
The active site is destroyed
Molecules have less kinetic energy
The enzyme is denatured
10.
The temperature at which an enzyme works fastest is its __________ temperature.
denaturing
minimum
boiling
optimum
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