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Question 1
Question
What is magnification ?
Answer
-
the degree to which the size of the an image is larger than the object itself. Expressed as x10
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the degree to which it is possible to distinguish between two objects that are very close together.
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the degree to which you can see the individual components of the cell
Question 2
Question
The light microscope can have a magnification of up to x 1500
Answer
- True
- False
Question 3
Question
The maximum resolving power of light is 2000mn
Answer
- True
- False
Question 4
Question
Why do sections of tissues need to be cut into thin slices for examination under a microscope
Answer
-
If the sample is too thick there would be too many cells overlapping each other so you would not be able to focus on the cells.
-
Light cannot penetrate thick slices of tissue, so no detail would be seen
Question 5
Question
what is the definition of staining (in microscopy)
Answer
-
any process that helps to reveal or distinguish different features.
-
The use of iodine to make transparent substances easier to see under a light microscope
Question 6
Question
Each type of organelle has a specific role in the cell what is this called
Answer
-
specialisation
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differentiation
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division of labour
-
ultrastructure
Question 7
Question
What are the features found in an animal cell.
Answer
-
Ribosome
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Chloroplast
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Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum
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Mitochondrion
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Nucleolus, nuclear envelope and nucleus
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Cell Wall
-
Cell membrane
-
Golgi Apparatus
-
Vacuole
-
Lysosome
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