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Identifying a microscope from an image
Figure 3 shows bacteria viewed using a microscope.
What type of microscope was used to view the bacteria in Figure 3? Give a reason for your answer.
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Marking points
- 1 Identifies an electron microscope and supports it with high resolution or high magnification.
Full-mark answer
An electron microscope was used because it has sufficiently high resolution (or magnification) to show the bacteria in this detail.
Why this answer loses marks
It is an electron microscope because the image is black and white.
The microscope type is correct, but image colour is not the credited reason; use high resolution or high magnification.