Exam-style practice

Biotechnology answer explanations

Review worked answers and explanations for Biotechnology. Aligned to Cambridge IGCSE Biology.

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Biotechnology

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Question 1 of 14

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Paper 3 structured question: Biotechnology

Paper 3Theory (Core)3 marks

Description

Anaerobic Respiration in Yeast

Yeast cells break down glucose without oxygen to produce ethanol and carbon dioxide. This process releases energy for the yeast and produces ethanol that can be used as a biofuel.

a
Describe how anaerobic respiration in yeast leads to the production of ethanol used in biofuels.
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