AQA GCSE Biology Biology Paper 2 (Higher), June 2023
Every question from AQA GCSE Biology Biology Paper 2 (Higher), June 2023 (8461): 9 questions, 100 marks, each with its mark scheme and topic.
- Question 1 8 marks
Identify ecological definitions and bird classification from binomial names, and interpret seasonal bird population changes from a line graph.
Biology · B6: Inheritance, Variation and Evolution · B7: Ecology
- Question 2 10 marks
Identify structures and mechanisms of the eye during accommodation and pupil reflex, and plan an investigation into the effect of caffeine on human reaction time.
Biology · Required Practicals · B5: Homeostasis and Response · Required Practicals
- Question 3 15 marks
Explain advantages of genetic variation and cloning, complete a sex determination Punnett square, and describe how selective breeding produces chickens with desired traits.
Biology · B6: Inheritance, Variation and Evolution
- Question 4 17 marks
Describe how carbon and nitrogen from dead leaves are recycled by trees, and analyze an investigation on the rate of milk decay at different temperatures using tangent calculation.
Biology · Required Practicals · B7: Ecology · B2: Organisation · Required Practicals
- Question 5 9 marks
Explain negative feedback control of substance Q, how thyroxine increases body temperature, and the effect of decreased ADH concentration on urine production.
Biology · B4: Bioenergetics · B5: Homeostasis and Response
- Question 6 11 marks
Explain diurnal variations in carbon dioxide concentration, the effect of deforestation on atmospheric carbon dioxide, and biodiversity recovery after deforestation.
Biology · B4: Bioenergetics · B7: Ecology
- Question 7 14 marks
Analyze hormone interactions during follicle development, calculate follicle numbers using volume of a sphere and graph data, and explain the inheritance of an FSH-deficiency allele.
Biology · B5: Homeostasis and Response · B6: Inheritance, Variation and Evolution
- Question 8 10 marks
Order stages of meiosis, determine chromosome counts and explain their significance, describe genetic variation in meiosis, and identify DNA components from a diagram.
Biology · B1: Cell Biology · B6: Inheritance, Variation and Evolution
- Question 9 6 marks
Explain how our understanding of evolution has developed due to fossil evidence and increased understanding of the mechanisms of genetics.
Biology · B6: Inheritance, Variation and Evolution