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Cambridge IGCSE Biology practice

Paper 4 structured question: Biotechnology

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4

Paper

3

Marks

Topic

Biotechnology

Exam-style question

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Paper 4Theory (Extended)3 marks

Fermenters are used to grow microorganisms such as bacteria and fungi to produce useful products on a large scale.

Description

Fermenter Use

A fermenter provides a controlled environment where microorganisms can grow rapidly and produce products like insulin, penicillin, and mycoprotein.

  1. a

    Describe how fermenters help in the mass production of useful products by bacteria and fungi.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Biotechnology

Paper 4Theory (Extended)2 marks

Description

Examples of Products from Fermenters

Insulin is produced by bacteria, penicillin by fungi, and mycoprotein by fungi grown in fermenters.

  1. a

    Identify one product made by bacteria and one product made by fungi in fermenters.

    Aim for approximately 2 distinct marking points.

    [2]