Pearson Edexcel A-Level Biology A (9BI0) · EDEXCEL 9BI0
1 Lifestyle, transport, genes and health
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Lifestyle, transport, genes and health
- Explain why the human circulatory system is described as a double circulatory system and e… (5 marks, Explain)
- Polydactyly is a genetic disorder in which a person is born with extra fingers or toes. It… (5 marks, Explain)
- Explain how oxygen moves from the air sacs (alveoli) in the lungs into the blood, and why … (5 marks, Explain)
- Statins are drugs that lower the concentration of cholesterol in the blood. Some doctors r… (5 marks, Evaluate)
- A student is investigating the effect of regular aerobic exercise on the cardiovascular sy… (5 marks, Explain)
- Explain how the structure of arteries and veins is related to their functions in the circu… (5 marks, Explain)
- A cell in the pancreas produces the protein insulin. Describe the roles of DNA, messenger … (5 marks, Describe)
- A student places a piece of potato into a concentrated salt solution and leaves it for 30 … (5 marks, Explain)
- Explain how the build-up of fatty deposits in a coronary artery can lead to a heart attack… (5 marks, Explain)
- A student learns that a mutation in a gene can sometimes result in a non-functional protei… (5 marks, Explain)
- Red blood cells are placed into three different solutions. In solution A, the cells remain… (5 marks, Explain)
- A student investigates osmosis using pieces of carrot. She places one piece of carrot into… (5 marks, Explain)
- Explain how glucose molecules move from the small intestine into the blood, and why this m… (5 marks, Explain)
- Sickle cell disease is a genetic disorder caused by a recessive gene mutation. A person wh… (5 marks, Explain)
- Huntington's disease is a genetic disorder caused by a dominant gene mutation. Explain why… (5 marks, Explain)
- Cystic fibrosis is a genetic disorder caused by a gene mutation. Explain how a gene mutati… (5 marks, Explain)
- A scientist compares the base sequence of a gene in a cell's nucleus with the base sequenc… (5 marks, Explain)
- Describe how a molecule of messenger RNA (mRNA) is produced from a gene, and explain how r… (5 marks, Describe and Explain)
- Explain how the sequence of bases in a gene determines the sequence of amino acids in a pr… (5 marks, Explain)
- Explain how the structure of a vein is related to its function in returning blood to the h… (5 marks, Explain)
▶ Practise Lifestyle, transport, genes and health with instant AI marking (free) →