A-LevelBiologyTransport in mammalsFeb/Mar 2021Paper 1 Q301 Mark
The diagram shows a capillary, some tissue cells and a lymph vessel. [Diagram showing capillary, tissue cells, lymph vessel and arrows labeled 1, 2, 3, 4] Which row correctly identifies arrows 1, 2, 3 and 4?
A1: diffusion of glucose
2: flow of water and small solutes
3: diffusion of carbon dioxide
4: flow of tissue fluid
B1: diffusion of glucose
2: flow of water and plasma proteins
3: osmosis of water
4: diffusion of oxygen
C1: diffusion of oxygen
2: flow of water and small solutes
3: diffusion of carbon dioxide
4: flow of tissue fluid
D1: diffusion of oxygen
2: flow of water and plasma proteins
3: osmosis of water
4: diffusion of carbon dioxide
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of transport in mammals within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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