Biology 0610 · IGCSE · Enzymes

Enzymes — practice question

Yeast, which is a microorganism, can be used to make alcohol.
(a(i))[2]

State the balanced chemical equation for making alcohol using yeast.

(a(ii))[1]

Name the organ in the human body that breaks down alcohol.

(b)[3]

Enzymes have a particular three dimensional shape. Explain why the shape of an enzyme is important.

(c(i))[3]

Explain why raising the temperature causes an increase in enzyme activity.

(c(ii))[1]

State one factor other than temperature that can affect enzyme activity.

(d(i))[2]

Define what the term gene means.

(d(ii))[2]

Describe the function of ribosomes in the synthesis of proteins such as enzymes.

Worked solution & mark scheme

This 14-mark question has a full step-by-step worked solution and mark scheme. One marking point: C6H12O6 → 2C2H5OH + 2CO2

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