Name two pieces of laboratory equipment the student could have used to prepare cells to view using a microscope - AQA - GCSE Biology - Question 7 - 2021 - Paper 1
Question 7
Name two pieces of laboratory equipment the student could have used to prepare cells to view using a microscope.
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Name part A.
What is the function of part B?... show full transcript
Worked Solution & Example Answer:Name two pieces of laboratory equipment the student could have used to prepare cells to view using a microscope - AQA - GCSE Biology - Question 7 - 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
Microscope slide
Cover slip
Step 2
Name part A.
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Answer
Eyepiece
Step 3
What is the function of part B?
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Answer
To focus the image or cells.
Step 4
Suggest one reason why the student could not see any cells when looking through part A.
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The student was looking at a blank field of view.
Step 5
Compare the structure of a red blood cell with the structure of a plant cell.
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Answer
Differences:
Red blood cells do not have a nucleus, while plant cells do.
Red blood cells are biconcave discs, whereas plant cells are typically rectangular.
Red blood cells contain haemoglobin, while plant cells do not.
Red blood cells lack chloroplasts, unlike plant cells which contain chloroplasts.
Similarities:
Both have a cell membrane.
Both contain cytoplasm.
Step 6
Explain why the red blood cell bursts but the plant cell does not burst.
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Answer
The red blood cell bursts because it does not have a cell wall, allowing water to enter easily, causing the cell to swell. The plant cell, however, has a rigid cell wall which prevents it from bursting despite water intake.
