Tutorial: Reviewing an Enzyme Experiment's Results

IELTS Listening PracticePart 3hard

Recording

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You can replay the recording as many times as you like while practising. In the real exam you hear it once only.

Questions

Question 1

Choose the correct letter, A, B or C.

At which temperature was the reaction fastest?

The reaction rate peaked at

A. 30 degreesB. 40 degreesC. 50 degrees

Question 2

Choose the correct letter, A, B or C.

Why did the rate fall sharply at 50 degrees?

At 50 degrees the rate dropped because

A. the enzyme was denatured by the heatB. there was not enough hydrogen peroxideC. the timer was started late

Questions 3–5

What was the likely cause of the problem at each temperature?

Choose the correct cause A–E for each result and select the correct letter.

Options

A. slow reaction time starting the timer
B. the liver had dried out and was inconsistent
C. the repeats were not done (missing data)
D. the peroxide was too concentrated
E. the thermometer was broken

the 10-degree reading (too high)

the 30-degree repeats (inconsistent)

the 50-degree reading (only one value)

Question 6

Choose the correct letter, A, B or C.

What does the tutor say Amira should do with the anomalous 10-degree point?

The anomalous point should be

A. delete it quietlyB. keep it but mark it as an anomaly and explain itC. use it as the main result

Questions 7–8

Complete the sentences below.

Write ONE WORD ONLY for each answer.

The variables kept the same in every trial are called the ______ variables.(max 1 word)

The heat stops the enzyme working by causing it to become ______.(max 1 word)

0 / 8 answered

About this Listening test

“Tutorial: Reviewing an Enzyme Experiment's Results” is an original IELTS Listening practice test in the style of Part 3 with 8 questions (Multiple Choice, Matching Features and Sentence Completion). Play the recording, answer as you listen, then submit to have every answer marked instantly and read the transcript.

Part 3 is a conversation between two to four people in an academic setting — typically students discussing an assignment with each other or a tutor. You answer 10 questions, usually multiple choice and matching, by tracking who says what, who agrees, and what they decide.

How to approach it

Before the audio, read the questions and note whose view each one asks about — "What does Marta think…" is answered by Marta’s words, not her tutor’s.
Learn the voices in the first few seconds: names are always exchanged early, and attaching name to voice immediately pays off for the whole part.
Common trap: Attributing one speaker’s opinion to another, especially when a speaker summarises someone else’s view before disagreeing with it.

Read the full Listening Part 3 strategy guide · How we write and check our tests

Build consistency with another Listening practice item.