AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), 2022
Every question from AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), 2022: 6 questions, 70 marks, each with its mark scheme and topic.
- Question 1 16 marks
Answer a series of questions about the cycling of water and carbon in ecosystems, including respiration, the water cycle, water shortage, decomposition and plant nutrients.
Biology · B4: Bioenergetics · B7: Ecology
- Question 2 6 marks
Explain how human activities cause pollution in rivers, lakes and seas and how this harms organisms.
Biology · B7: Ecology
- Question 3 7 marks
Identify one biotic factor affecting buttercup numbers on a school field and describe a fieldwork method using quadrats or transects to investigate whether soil water content affects the number of buttercup plants.
Biology · Required Practicals · B7: Ecology · Biology Required Practicals
- Question 4 12 marks
Investigate and interpret how soil nitrate ion concentration affects corn yield, including control variables, plotting data, describing the trend, and evaluating economic and environmental implications of nitrate fertiliser use.
Biology · B7: Ecology
- Question 5 18 marks
Answer a set of biology questions on blood glucose control by insulin and glucagon, female fertility hormones and IVF, and differences between meiosis and mitosis in humans.
Biology · B5: Homeostasis and Response · B6: Inheritance, Variation and Evolution
- Question 6 11 marks
Classify the polar bear, calculate the rate of Arctic sea ice loss from a graph, and use ecological evidence to explain and evaluate how changes in sea ice affect polar bear populations.
Biology · B6: Inheritance, Variation and Evolution · B7: Ecology