A student prepared some animal cells to view using a microscope - AQA - GCSE Biology - Question 1 - 2021 - Paper 1
Question 1
A student prepared some animal cells to view using a microscope.
Figure 1 shows the student preparing the cells.
1.1.1 Name two pieces of laboratory equipment the... show full transcript
Worked Solution & Example Answer:A student prepared some animal cells to view using a microscope - AQA - GCSE Biology - Question 1 - 2021 - Paper 1
Step 1
Name two pieces of laboratory equipment the student could have used to prepare cells to view using a microscope.
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Answer
The student could have used a microscope slide and a cover slip to prepare the cells for viewing under the microscope.
Step 2
Name part A.
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Answer
Part A is likely the cover slip.
Step 3
What is the function of part B?
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Part B functions as the microscope itself, which magnifies the image of the cells for easier observation.
Step 4
Suggest one reason why the student could not see any cells when looking through part A.
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One reason the student could not see any cells could be that the specimen was not properly prepared, possibly due to insufficient staining or the cells being too thin.
Step 5
Compare the structure of a red blood cell with the structure of a plant cell.
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Red blood cells are bi-concave in shape and do not have a nucleus or cell wall; they contain haemoglobin for oxygen transport. In contrast, plant cells have a fixed rectangular shape, a cell wall for structural support, chloroplasts for photosynthesis, and a large central vacuole for storage. Both types of cells have cytoplasm and a cell membrane, but their functions and structures differ significantly.
