The light microscope parts and function
The following diagram illustrates a light microscope.
- Name the part labelled E. (1 mark)
- Label on the diagram with letter F, the part that reflects light to the specimen. (1 mark)
- State the function of the part labelled H. (1 mark)
- Explain the precautions that should be taken while using the part labelled G. (2 marks)
- Describe how one can determine the magnification of a specimen viewed under the microscope. (2 marks)
- During a microscopy lesson, two groups of students observed different numbers of cells from the same slide using identical microscopes. Suggest the likely cause of the difference. (1 mark)
Suggested resposponses
Parts and function of the microscope
(a) Condenser;
(b) Mark on the diagram (Mirror);
(c) Raises and lowers the body tube through shorter distances to bring the image into sharper focus;
(d) Should be adjusted gently; to avoid damaging the objective lenses;
(e) Magnification is...
