Learner Resource 1 –
Biochemistry of respiration – revision and
preparation
1. What is the general formula of a carbohydrate?
2. Carbohydrates are classified into three groups. Name these and give brief descriptions
of the features of each group.
3. How are the largest carbohydrates made from the smallest? Show this process
diagrammatically.
4. Draw the α ring form of glucose.
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5. Show how a triglyceride lipid forms from its constituents. Name the bonds involved.
6. Compare carbohydrates, fats and proteins in terms of their energy content.
7. In what units is the energy content of food measured? How is the energy value of a
food measured?
8. How are the molecules NAD and FAD classified?
9. What is meant by the term co-enzyme?
10. Define the terms oxidation and reduction. What three chemical events can be called
oxidation?
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© OCR 2016