Figure 5 shows a human cheek cell viewed under a light microscope - AQA - GCSE Biology - Question 3 - 2018 - Paper 1
Question 3
Figure 5 shows a human cheek cell viewed under a light microscope.
Label the nucleus and cell membrane on Figure 5.
Cheek cells are a type of body cell.
Body cells... show full transcript
Worked Solution & Example Answer:Figure 5 shows a human cheek cell viewed under a light microscope - AQA - GCSE Biology - Question 3 - 2018 - Paper 1
Step 1
Label the nucleus and cell membrane on Figure 5.
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Answer
The nucleus should be labelled within the centre of the cell, and the cell membrane should be labelled around the outside of the cell.
Step 2
What is the name of this type of cell division?
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Answer
The correct answer is 'Mitosis' as this is the process by which body cells divide.
Step 3
What type of microscope is needed to see ribosomes and mitochondria?
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An electron microscope is required to view ribosomes and mitochondria due to their small size.
Step 4
What is the advantage of using the type of microscope you named in part 03.3?
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The advantage of using an electron microscope is that it provides higher magnification, allowing for the observation of smaller cellular structures.
Step 5
Measure the width of the cell using a ruler.
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Answer
Measure the width of the cheek cell using a ruler to obtain a measurement in millimeters (mm).
Step 6
Use the equation to work out the real width of the cell in mm:
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The real width of the cell can be calculated using the formula:
