8. (a)
(i) Identify with a label X, the eyepiece on the diagram of the light microscope - Leaving Cert Biology - Question 8 - 2021
Question 8
8.
(a)
(i) Identify with a label X, the eyepiece on the diagram of the light microscope.
(ii) Identify with a label Y, the stage or platform on the diagram of the... show full transcript
Worked Solution & Example Answer:8. (a)
(i) Identify with a label X, the eyepiece on the diagram of the light microscope - Leaving Cert Biology - Question 8 - 2021
Step 1
Identify with a label X, the eyepiece on the diagram of the light microscope.
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Answer
X is the eyepiece of the light microscope, typically located at the top of the microscope where you look through.
Step 2
Identify with a label Y, the stage or platform on the diagram of the light microscope.
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Answer
Y is the stage, which is the flat platform that supports the slide containing the specimen.
Step 3
Name a plant you used to obtain the sample of cells.
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Onion (or another correct example such as a leaf from a common plant).
Step 4
How did you prepare an unstained plant cell sample for examination under the light microscope?
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Cut or peel a thin slice of the plant (e.g., onion), place it on a microscope slide, add a drop of water, and then carefully lower a cover slip over the specimen.
Step 5
What stain did you add to the cells?
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Iodine.
Step 6
What was the purpose of the stain?
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The stain makes the cells stand out, allowing us to see the cells more clearly under the microscope.
Step 7
How did the objective lens help you to see your stained cell sample?
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The objective lens magnifies the image, allowing for greater detail and clarity when observing the stained cells.
Step 8
Give one cell structure that showed you were looking at plant cells.
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Cell wall or large vacuole or chloroplast.
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