Figure 9 shows a nephron from a kidney - Edexcel - GCSE Biology - Question 5 - 2023 - Paper 2
Question 5
Figure 9 shows a nephron from a kidney.
(a) The pressure of the liquid in the Bowman’s capsule is 1.3 kPa.
The pressure of the liquid in the glomerulus is 5.6 time... show full transcript
Worked Solution & Example Answer:Figure 9 shows a nephron from a kidney - Edexcel - GCSE Biology - Question 5 - 2023 - Paper 2
Step 1
Calculate the pressure in the glomerulus.
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Answer
To find the pressure in the glomerulus, we multiply the pressure in the Bowman’s capsule by 5.6:
P=1.3extkPaimes5.6=7.28extkPa
Rounding to one decimal place gives:
P=7.3extkPa
Step 2
Which row of the table shows the parts of the blood that move into the Bowman’s capsule?
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Answer
The correct choice is A because it indicates that urea is the part that moves freely into the Bowman’s capsule, while blood cells do not.
