AQA GCSE Biology Biology Paper 2 (Higher), June 2024
Every question from AQA GCSE Biology Biology Paper 2 (Higher), June 2024 (8461): 9 questions, 100 marks, each with its mark scheme and topic.
- Question 1 8 marks
Define mutation, describe natural selection, identify scientists involved in evolution theory, and explain how mimicry helps a hoverfly survive.
Biology · B6: Inheritance, Variation and Evolution · B7: Ecology
- Question 2 10 marks
Explain why plant remains in peat bogs do not decay, calculate biomass transferred to primary consumers, identify plant compounds containing phosphate and nitrogen, and explain how peat bog destruction affects atmospheric temperature.
Biology · B7: Ecology · B4: Bioenergetics · B6: Inheritance, Variation and Evolution
- Question 3 11 marks
Evaluate a sampling method for tadpoles in a pond, calculate a missing sample value, plot the population change over time on a graph, determine the percentage remaining, and suggest causes for tadpole mortality.
Biology · Required Practicals · B7: Ecology · Required Practicals
- Question 4 15 marks
Investigate geotropism in bean seedling roots using stationary and rotating clinostat apparatus, and state uses of auxin and gibberellin.
Biology · Required Practicals · B5: Homeostasis and Response · Required Practicals
- Question 5 14 marks
Suggest improvements to a ruler drop reaction time experiment, compare nervous and endocrine coordination, identify endocrine glands and hormones, and explain how hormones are used in contraception and treating infertility.
Biology · Required Practicals · Required Practicals · B5: Homeostasis and Response
- Question 6 11 marks
Explain the inheritance of polydactyly using a family pedigree and a Punnett square, and calculate the incidence of cystic fibrosis in a population.
Biology · B6: Inheritance, Variation and Evolution
- Question 7 13 marks
Calculate the land area needed to feed chickens, construct a pyramid of biomass, calculate a biomass ratio, and analyze amino acid data in maize.
Biology · B7: Ecology
- Question 8 10 marks
Define homeostasis, describe the handling of glucose, protein, and urea by the kidneys, and explain how ADH affects urine production and concentration.
Biology · B5: Homeostasis and Response
- Question 9 8 marks
Explain how the use of GM herbicide-resistant soya bean plants and glyphosate increases crop yield, and suggest two concerns about GM crops.
Biology · B6: Inheritance, Variation and Evolution · B7: Ecology · B4: Bioenergetics