Photo AI

HBV infects a liver cell - AQA - A-Level Biology - Question 7 - 2021 - Paper 2

Question 7

HBV infects a liver cell. The liver cell is 25 µm in diameter. Use Figure 7 to calculate how many times larger in diameter this cell is than HBV. You should use the ... show full transcript

Worked Solution & Example Answer:HBV infects a liver cell - AQA - A-Level Biology - Question 7 - 2021 - Paper 2

Step 1

Calculate the Diameter of HBV

96%

114 rated

Answer

From Figure 7, the diameter of HBV is indicated to be 10 nm. To convert this into micrometers, we note that:

1 µm = 1000 nm, therefore,

10 ext{ nm} = rac{10}{1000} ext{ µm} = 0.01 ext{ µm}

Step 2

Calculate the Size Comparison

99%

104 rated

Answer

Now, we can find how many times larger the liver cell is compared to HBV:

ext{Size ratio} = rac{ ext{Diameter of liver cell}}{ ext{Diameter of HBV}} = rac{25 ext{ µm}}{0.01 ext{ µm}} = 2500

Thus, the liver cell is 2500 times larger than HBV.

Join the A-Level students using SimpleStudy...

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered

;