Cambridge IGCSE Biology
21.2Biotechnology
Biotechnology in Cambridge IGCSE Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic40 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 21.2.1Describe the role of anaerobic respiration in yeast in producing ethanol for biofuels and in bread-making.
- 21.2.2Describe the use of pectinase in fruit juice production, and investigate and describe the use of biological washing powders containing enzymes.
- 21.2.3Supplement: explain the use of lactase to produce lactose-free milk.
- 21.2.4Supplement: describe how fermenters are used to produce insulin, penicillin and mycoprotein, and explain the conditions that must be controlled in a fermenter.
Lessons
- Full access
Enzymes in industry and the home
19 min
- Full access
Microorganisms in biotechnology
21 min
Join to read every lesson, or see what Full access includes.
Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Exam style
Turn Biotechnology into a strength.
Practise with instant marking, see your mastery grow and get a study plan built around your exam date.