Answer the following questions in relation to obtaining and staining a sample of plant cells and viewing them under the microscope - Leaving Cert Biology - Question 7(b) - 2011
Question 7(b)
Answer the following questions in relation to obtaining and staining a sample of plant cells and viewing them under the microscope.
(i) From what plant did you obta... show full transcript
Worked Solution & Example Answer:Answer the following questions in relation to obtaining and staining a sample of plant cells and viewing them under the microscope - Leaving Cert Biology - Question 7(b) - 2011
Step 1
From what plant did you obtain the cells?
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Answer
The cells were obtained from an onion (Allium cepa) plant.
Step 2
How did you prepare the slide of the plant cell sample for examination?
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Answer
To prepare the slide, a thin piece of onion tissue was cut and placed on a glass slide. A drop of water was added to keep the tissue moist, and a cover slip was gently placed on top to avoid air bubbles.
Step 3
What stain did you use on the cells?
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Answer
The stain used on the cells was iodine.
Step 4
How did you apply the stain?
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Answer
The stain was applied using a dropper. A few drops of iodine solution were placed on one edge of the cover slip, and the slide was tilted slightly to allow the stain to spread underneath.
Step 5
Which objective lens should you begin with when using the microscope?
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You should begin with the low power objective lens.
Step 6
Give one cell structure that you observed that indicated that the cells were plant cells.
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One cell structure observed was the cell wall or the vacuole.
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