HARD
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Enzymes are biological catalysts. The diagram below shows how the enzyme, sucrase break down a molecule of sucrose.Question Image

Describe how sucrase catalyse the break-down of sucrose?

Important Questions on Enzymes

EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.3
In which kinds of reaction inside a living organism are controlled by enzymes?
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.4
What is meant by a carbohydrase?
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.5
Give one example of carbohydrase?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.6
Name the substrate and product of a reaction involving a carbohydrase.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.7
What is meant by an optimum temperature?
HARD
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.8

What is the optimum temperature for the enzyme in given figure?

Question Image

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>Questions>Q 5.9
Why are the enzymes damage by high temperature?
HARD
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Biology Coursebook Third Edition>Chapter 5 - Enzymes>End-of-chapter questions>Q 2
A protease enzyme is found in the stomachs of humans. The stomach contains Hydrochloric acids. Suggest the optimum PH For the activity of this protease enzyme.