Study guides, Class notes & Summaries

A-level BIOLOGY Paper 1 2020 Last document update:   ago

7402/1 S - The Marketplace for Revision Notes & Study Guides 2 Answer all questions in the spaces provided. Do not write outside the box 0 1 Figure 1 shows a cell from the lining of the ileum specialised for absorption of products of digestion. SGLT1 is a carrier protein found in the cell-surface membrane of this cell, it transports glucose and sodium ions (Na+) into the cell. Figure 1 . The action of the carrier protein X in Figure 1 is ...