OCR A Level Biology A Unified Biology June 2023 mark scheme H420/03
Practise the past exam questions by topic
Gas exchange5 Qs
Surface area to volume ratio8 Qs
Aerobic respiration5 Qs
Biological molecules6 Qs
Enzymes8 Qs
Factors affecting enzyme activity15 Qs
Oxidative phosphorylation5 Qs
Genetic engineering13 Qs
Limiting factors in photosynthesis8 Qs
Light-independent reaction6 Qs
Adaptations6 Qs
Maintaining biodiversity7 Qs
Species richness & index of diversity7 Qs
Respiration10 Qs
Classification8 Qs
+11 more
7 questions
- Q1 - 10 marks - Gas exchange, Surface area to volume ratio
- Q2 - 14 marks - Aerobic respiration, Biological molecules, Enzymes, Factors affecting enzyme activity, Oxidative phosphorylation
- Q3 - 11 marks - Genetic engineering, Limiting factors in photosynthesis, The light-independent reaction
- Q4 - 15 marks - Adaptations, Maintaining biodiversity, Species richness and index of diversity
- Q5 - 9 marks - Respiration
- Q6 - 6 marks
- Q7 - 5 marks - Classification
Your browser can't show this paper here.
Open the PDF