page 05 6. The diagram shows a protein molecule and the cell membrane. phospholipid bilayer protein Which row in the table identifies features of this protein? Protein type Nature of R groups on protein surface Integral Peripheral Hydrophobic Hydrophilic A ✓ ✓ B ✓ ✓ ✓ C ✓ ✓ ✓ D ✓ ✓ 7. The response to an increase in insulin concentration in the blood involves the following events. 1. Recruitment of GLUT 4 to the cell membrane. 2. A phosphorylation cascade inside the cell. 3. Insulin receptor changes conformation. 4. Phosphorylation of the insulin receptor. 5. Binding of insulin to its receptor. The correct sequence of these events is: A 5, 4, 3, 1, 2 B 2, 4, 3, 5, 1 C 5, 3, 4, 2, 1 D 5, 3, 1, 2, 4 [Turn over
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This question is part of the UK A-Level Biology syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
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