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Which row of the table is correct with respect to the substances that pass through the nephron? Bowman's capsule Proximal convoluted tubule Collecting duct A - HSC - SSCE Biology - Question 15 - 2018 - Paper 1
Question 15
Which row of the table is correct with respect to the substances that pass through the nephron? Bowman's capsule Proximal convoluted tubule Collecting duct A. Chlor... show full transcript
Worked Solution & Example Answer:Which row of the table is correct with respect to the substances that pass through the nephron? Bowman's capsule Proximal convoluted tubule Collecting duct A - HSC - SSCE Biology - Question 15 - 2018 - Paper 1
Step 1
D. Sodium ions are at the same concentration as in plasma
Answer
In this row, it is stated that sodium ions are at the same concentration in Bowman's capsule as in plasma. This is true because sodium ions typically pass through the nephron in a similar concentration to that found in the plasma.
In the proximal convoluted tubule, sodium ions are reabsorbed actively into the blood, indicating that not all sodium ions remain in the filtrate. Finally, in the collecting duct, water reabsorption is influenced by antidiuretic hormone (ADH), which allows more water to be reabsorbed in response to the body's hydration needs.
Thus, option D accurately reflects the processes occurring in each part of the nephron.