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The diagram shows part of a kidney tubule (nephron) - OCR Gateway - GCSE Biology - Question 9 - 2019 - Paper 3
Question 9
The diagram shows part of a kidney tubule (nephron). Which structure is the proximal convoluted tubule? Your answer _____
Worked Solution & Example Answer:The diagram shows part of a kidney tubule (nephron) - OCR Gateway - GCSE Biology - Question 9 - 2019 - Paper 3
Step 1
Which structure is the proximal convoluted tubule?
Answer
In the context of the given diagram, the proximal convoluted tubule is represented by structure D. This part of the nephron is responsible for reabsorbing water, ions, and nutrients from the filtrate back into the bloodstream. It plays a crucial role in the kidney's function of filtering blood and maintaining homeostasis.