AQA GCSE Combined Science: Trilogy Biology Paper 1 (Higher), 2023
Every question from AQA GCSE Combined Science: Trilogy Biology Paper 1 (Higher), 2023: 7 questions, 69 marks, each with its mark scheme and topic.
- Question 1 13 marks
Answer questions on communicable and non-communicable diseases, obesity, BMI calculations, the effects of smoking on baby birth mass, measles transmission, and estimating the number of people with athlete’s foot.
Biology · Required Practicals · B3: Infection and Response
- Question 2 6 marks
Describe how to use a microscope, ruler and onion slide to estimate the mean length of onion cells.
Biology · Required Practicals · B1: Cell Biology · Biology Required Practicals
- Question 3 8 marks
Describe the double circulatory system, identify the heart’s pacemaker and the pulmonary artery, and explain structural differences between veins and arteries.
Biology · B2: Organisation
- Question 4 9 marks
Identify leaf tissues, explain adaptations of spongy mesophyll and xylem, and describe how guard cells open the stoma.
Biology · B2: Organisation · B4: Bioenergetics
- Question 5 6 marks
Explain the overall exchange of carbon dioxide and oxygen in a tree at bright light, dim light, and no light.
Biology · B4: Bioenergetics
- Question 6 13 marks
Explain why starch must be digested, use a colorimeter graph to interpret starch concentration results, calculate mean rate of starch digestion, and predict the effect of pH 1 on amylase activity.
Biology · Required Practicals · B2: Organisation · Biology Required Practicals
- Question 7 14 marks
Investigate antibiotic resistance in Staphylococcus aureus and compare treatments using stem cells and antibiotics around a bone implant.
Biology · Required Practicals · B3: Infection and Response · Biology Required Practicals