Lesson Starter
Write a sentence describing temperature
and enzymes including the following
words:
Enzyme activity
low temperature
high temperature
reaction
denature
Learning Outcomes
In today’s lesson you will be trying past paper
questions.
By the end of this lesson you should aim to:
• Assess your learning of enzymes
• Familiarise yourself with exam format through past
paper questions
• Work cooperatively in a group
In groups of 4 you will complete a
circus of past paper questions, starting
with multiple choice.
You should not move on to the next set
of questions until everyone in your trio
understands the question.
15 minutes for
20 questions!
1.
4.
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Now try longer answer questions!
You should not move on to the next set
of questions until everyone in your trio
understands the question.
Rest of the
lesson
1.
Z
Y
3
____
Its shape is permanently changed.
X
2.
Its active site will only allow one enzyme to join
to it. It is shaped like a lock and the substrate fits
into this like a key.
It becomes denatured.
pH
oxygen
hydrogen
3.
As pH increases from 4 to 8 trypsin activity
increases as is shown by the increase in the
clear jelly (from 2 to 10mm) as pH further
increases to 12 trypsin activity decreases (7mm
of clear jelly).
2mm
4.
9
pH of hydrogen peroxide solution
to make it more reliable
5.
oxygen
water
Use boiled liver in which the
enzyme has been denatured.
Measure the volume of oxygen
produced/ height of foam if you
added washing up liquid too.
Temperature and concentration of the
hydrogen peroxide solution.
6.
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Lesson Recap
Enzyme hangman
Torrance Standard Grade Biology.
Answer Qs 1 and 2 on p235 in full
sentences.
Ten
minutes