84-85 WJEC Biology AS Level - Marianne Izen - 2nd Edition (1.4 Enzymes And Biological Reactions)

Question 1

Practical Exercise: To determine the effect of temperature on trypsin activity

Rationale

Answer 1

Question 2

Practical Exercise: To determine the effect of temperature on trypsin activity

Design

Answer 2

Question 3

Practical Exercise: To determine the effect of temperature on trypsin activity

Apparatus

Answer 3

Question 4

Practical Exercise: To determine the effect of temperature on trypsin activity

Method

Answer 4

Question 5

Practical Exercise: To determine the effect of temperature on trypsin activity

Results table

Answer 5

Question 6

Practical Exercise: To determine the effect of temperature on trypsin activity

Further work

Answer 6

Question 7

Answer 7

Question 8

What should you use for control in an enzyme experiment?
Why should you not use bottled water as a control?

Answer 8

Question 9

How do you control temperature for an experiment

Answer 9

Question 10

How should you measure time during an experiment

Answer 10

Question 11

Why should you plot 1/time rather than time for a graph showing enzyme action

Answer 11