Exam (elaborations)
Stuvia-1444431-aqa-a-level-biology-paper-1-2020-question-paperverified-questions-2020.pdf
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S 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 i...
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