The kidney has an important role in the regulation of the plasma concentration and blood volume. The photograph shows a Bowman's capsule (renal capsule). The line from X to Y shows the diameter of the Bowman's capsule. (Source: © Science Photo Library/Alamy Stock Photo) The diameter from X to Y is 70 nm . Calculate the magnification of this photograph. Give your answer in standard form. (2) Answer .......................................................... .
Exam No：WBI1501-que-20241024 Year：2024 Question No：6(a)(i)
Answer:
A calculation showing the following steps:
- correct measurement of Bowman's capsule (1)
- calculation of magnification and answer given in standard form (1)
- conversion of 52 mm to \(\mathrm{nm}(52 \times 1000000)=5.2 \times\) \(10^{7}\)
- calculation of magnification \(\left(5.2 \times 10^{7}\right) \div 70=\)
- correct measurement of Bowman's capsule (1)
- calculation of magnification and answer given in standard form (1)
- conversion of 52 mm to \(\mathrm{nm}(52 \times 1000000)=5.2 \times\) \(10^{7}\)
- calculation of magnification \(\left(5.2 \times 10^{7}\right) \div 70=\)
Knowledge points:
CH7 – Respiration, Muscles and the Internal Environment
Solution:
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