The diagram shows a simplified model of a mammalian nephron and three processes labelled 1, 2 and 3 - HSC - SSCE Biology - Question 7 - 2016 - Paper 1
Question 7
The diagram shows a simplified model of a mammalian nephron and three processes labelled 1, 2 and 3.
Which row of the table correctly identifies each of the process... show full transcript
Worked Solution & Example Answer:The diagram shows a simplified model of a mammalian nephron and three processes labelled 1, 2 and 3 - HSC - SSCE Biology - Question 7 - 2016 - Paper 1
Step 1
1. Identify the Process at Label 1
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Answer
Label 1 is located at the glomerulus where blood filtration occurs. Thus, process 1 is Filtration.
Step 2
2. Identify the Process at Label 2
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Answer
Label 2 is possibly in the proximal convoluted tubule, where essential nutrients and water are reabsorbed back into the blood. Therefore, process 2 is Reabsorption.
Step 3
3. Identify the Process at Label 3
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Answer
Label 3 is typically situated in the distal convoluted tubule or collecting duct where waste substances are secreted into the nephron. Hence, process 3 is Secretion.
Step 4
Final Answer Selection
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Answer
Based on the identification of the processes, the correct option is (B) Filtration, Reabsorption, Secretion.
