plumiMovement into and out of cells: CAIE A‑Level Biology questions
Every CAIE A-Level Biology exam question on 4.2 Movement into and out of cells, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Q4(b)
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All 6 questions on Movement into and out of cells, as a list
- June 2024, Paper 1, Q13 (1 mark): The diagram shows how nicotine is transported from the blood plasma into a cell using a type of cotransporter mechanism. protons move down their concentration g
- June 2024, Paper 1, Q15 (1 mark): A student observed the effect of two different concentrations of salt solution on blood cells. The student added each concentration of salt solution to one of t
- June 2024, Paper 1, Q16 (1 mark): Which statement correctly describes facilitated diffusion? A The process only occurs using channel proteins that change shape and that use energy provided by th
- Specimen, Paper 1, Q17 (1 mark): What happens to a typical bacterium when it is placed in surroundings that have a higher water potential than the water potential inside the cell? A The bacteri
- Specimen, Paper 1, Q18 (1 mark): By which process do hydrogencarbonate ions leave red blood cells? A active transport B endocytosis C facilitated diffusion D phagocytosis
- Specimen, Paper 2, Q4(b) (2 marks): Fig. 4.1 shows the location where mineral ions in the soil enter the plant. There is a greater density of mitochondria in cell X than in a cell of the root cort
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