Biology 9700: CELL MEMBRANES AND TRANSPORT Topical Past Paper Questions
Cambridge AS & A Level Biology (9700) past-paper questions on CELL MEMBRANES AND TRANSPORT, free. This topic is frequently examined across 28 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
(a) In the kidney, glomerular filtrate forms in the Bowman's capsule. Some substances are then reabsorbed in the proximal convoluted tubule. Figure 8.1 is a diagram showing the relationship between the proximal convoluted tubule and a blood capillary. Figure 8.1 Complete Table 8.…
Many substances can move through cell surface membranes between the cytoplasm of animal cells and the extracellular environment. (a) A student made a drawing to summarise the movement of substances across the cell surface membranes of mammalian red blood cells. Fig. 1.1 shows the…
(a) Fig. 1.1 is a diagram representing part of the phospholipid bilayer of a cell surface membrane. Fig. 1.1 (i) Identify the part of a phospholipid molecule, labelled A in Fig. 1.1, that forms bonds with the phosphate heads and with the fatty acid tails. (iii) Cholesterol is an…
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