Cambridge AS & A Level Biology
12.1Energy
Energy in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic41 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 12.1.1Outline the need for energy in active transport, movement and anabolic reactions such as DNA replication and protein synthesis.
- 12.1.2Describe the features that make ATP suitable as the universal energy currency.
- 12.1.3State that ATP is made by substrate-linked phosphorylation and by chemiosmosis in mitochondria and chloroplasts.
- 12.1.4Explain the relative energy values of carbohydrates, lipids and proteins as respiratory substrates.
- 12.1.5State that RQ is the ratio of carbon dioxide molecules produced to oxygen molecules taken in.
- 12.1.6Calculate RQ values of substrates from respiration equations.
- 12.1.7Use simple respirometers to determine the RQ of germinating seeds or small invertebrates.
Lessons
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Energy in living organisms and ATP
35 min
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Respiratory substrates, RQ and respirometers
45 min
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Sample question
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Turn Energy into a strength.
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