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7.5.4 Role of biotechnology

7.5.4 Role of biotechnology

Producing more food with biotechnology

  1. Modern biotechnology lets us make large amounts of food to feed a growing population.
  2. It uses microorganisms and genetic engineering to produce foods and useful substances.
Key Idea

Biotechnology uses living organisms, often microorganisms, to make food and medicines on a large scale.

Mycoprotein

Definition

Mycoprotein

A protein-rich food made from the fungus Fusarium, which is grown in large fermenters.

  1. Mycoprotein is a protein-rich food made from the fungus Fusarium.
  2. The fungus is grown in large tanks called fermenters, with sugar as food and carefully controlled conditions.
  3. The mycoprotein is then harvested and used to make meat-free foods.
Common Mistake
  • Do not confuse mycoprotein with meat.
  • It comes from a fungus grown in a fermenter, not from an animal.

Genetic engineering

Definition

Genetic engineering

Changing the genes of an organism by inserting a gene from another organism, for example to make bacteria produce human insulin or to improve a crop.

  1. Genetic engineering changes an organism's genes by adding a gene from another organism.
  2. Bacteria have been engineered to produce human insulin for treating diabetes.
  3. Crops have been engineered to give bigger yields or to resist disease and pests, helping to feed more people.
Self review
  • What organism is mycoprotein made from, and where is it grown?
  • What is genetic engineering?
  • Which medicine is produced by genetically engineered bacteria?
  • Give one way GM crops can help feed a growing population.
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Biotechnology uses living organisms, often microorganisms, to make useful products. These products include foods and medicines.

Microorganisms grow rapidly and can be cultured in large containers under controlled conditions. This allows useful substances to be produced consistently and on a large scale.

Important examples include growing the fungus Fusarium to make mycoprotein. Bacteria can also be genetically engineered to make human insulin.

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What is the main role of modern biotechnology?

7.5.4 Role of biotechnology Revision Guide

  1. GCSE
  2. /Biology
  3. /7.5.4 Role of biotechnology

Revision notes for AQA GCSE Biology 7.5.4 Role of biotechnology: explanations and worked examples.

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