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Biology 11, Chapter 1
Cell Structure And Functions - 3
1.
Staining is an auxiliary technique used in microscopy to enhance colour contrast in the microscopic image in order to?
a) To makes clearly visible certain structures without affecting others
b) For better colour combination
c) To eliminate colour contrast
d) To make things look good
2.
To differentiate between different biological transparent structures some methods must be used. The most common method is?
a) complementing
b) Centrifuging
c) Constipating
d) Staining
3.
Certain stains when used in _____ concentrations are non-toxic to living tissues and can therefore be used on _______ material?
a) Low, non-living
b) Low, living
c) High, living
d) High, living
4.
Certain stains when used in low concentrations are non-toxic to living tissues and can therefore be used on living material. These are called?
a) Live stains
b) Large stains
c) Vital stains
d) Clear stains
5.
Which is vital stain?
a) Hydrogen
b) Methylene blue
c) Oxygen
d) Sodium Nitrate
6.
When only one stain such as _______ carmine is used it is called _________?
a) Borax, single staining
b) Hydrogen, Single staining
c) Single staining, Borax
d) Vital stain, single staining
7.
When two stains, one that will stain nucleus e.g. haematoxylin and other that will stain cytoplasm e.g. eosin are used, the process is called?
a) Double staining
b) Differential staining
c) Two answers are correct
d) Partial staining
8.
When dissection is made under microscope it is called?
a) Live dissection
b) Microdissection
c) Minor dissection
d) Major dissection
9.
Microdissection is done to remove?
a) Two answers are correct
b) Granules
c) Tumours
d) Lungs
10.
Microdissection is done to remove tumour or granules from?
a) Granules
b) Delicate tissue or cells
c) Lungs
d) Tumours
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