Quiz
Histology
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Questions in this quiz (16)
1Carbohydrates can be split into 2 functional groups, [blank_start]glycogen[blank_end] and [blank_start]mucins[blank_end]. Glycogen is a [blank_start]simple[blank_end] polysaccharide which functions as a glucose [blank_start]precursor[blank_end]. Mucins include [blank_start]glycoconjugates[blank_end], [blank_start]mucopolysaccharides[blank_end] and [blank_start]mucosubstances[blank_end]. They are often found as a [blank_start]mixture[blank_end].
- Aglycogen
- Bmucins
- Csimple
- Dprecursor
- Eglycoconjugates
- Fmucopolysaccharides
- Gmucosubstances
- Hmixture
2Sometimes called the connective tissue mucins
- AGroup I: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup III: Glycoproteins
- DGroup IV: Glycolipids
3All members are PAS positive
- AGroup I: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup III: Glycoproteins
- DGroup IV: Glycolipids
4All members are PAS negative
- AGroup I: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup III: Glycoproteins
- DGroup IV: Glycolipids
5Glycogen is the most important member of this group
- AGroup i: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup III: Glycoproteins
- DGroup IV: Glycolipids
6The term acid mucosubstance is used to include the acidic members
- AGroup I: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup III: Glycoproteins
- DGroup IV: Glycolipids
7Includes cerebrosides and phosphatides
- AGroup I: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup III: Glycoproteins
- DGroup IV: Glycolipids
8Sometimes called the epithelial mucins
- AGroup I: Neutral Polysaccharides
- BGroup II: Acid Mucopolysaccharides
- CGroup II: Glycoproteins
- DGroup IV: Glycolipids
9Schiff's reagent is formed by the reduction of basic [blank_start]fuchsin[blank_end], which is [blank_start]red[blank_end] to the colorless compound known as [blank_start]leucofuchsin[blank_end] or Schiff's reagent. The [blank_start]aldehyde[blank_end] groups in tissue [blank_start]oxidize[blank_end] the Schiff's reagent and impart a magenta or rose color to the dye.
- Afuchsin
- Bred
- Cleucofuchsin
- Daldehyde
- Eoxidize
10What is the function of activated charcoal in the preparation of Schiff's reagent?
- AIt aids in reduction
- BIt removed impurities
- CIt prevents over-oxidation
- DIt prevents precipitation of dye molecules
11How should good Schiff's reagent appear if formaldehyde is added to test it prior to staining?
- APurple-red
- BStraw color
- CColorless
- DBluish-red
12What is the function of periodic acid in the PAS method?
- Areduces glycol fragments to aldehydes
- Breduces glycogen to simple sugars
- Coxidizes glycol groups to aldehydes
- Doxidizes glycogen to simple sugars
13How should Schiff's reagent be stored?
- AIt must be stored frozen in a chemically clean container
- BIt must be made fresh daily so should never be stored
- CIt should be stored at room temperature in a dark container
- DIt should be refrigerated in a dark container
14PAS-positive substances include which of the following?
- Aglycogen, fungal walls, thyroid colloid
- Bglycogen, fungal walls, mast cells
- Cglycogen, thyroid colloid, mast cells
- Dfungal walls, thyroid colloid, mast cells
15Which of the following is true when performing the PAS method with diastase or alpha amylase digestion?
- Athe periodic acid step should be omitted
- Bany section of kidney would make a good control
- Cacid mucopolysaccharides will be reduced to glucose and maltose
- Dglycogen will be removed on the treated slide
16What would the expected results be if the PAS reaction with alpha amylase is performed on a section of liver containing glycogen?
- Atreated slide - glycogen magenta; untreated slide - no glycogen staining
- Btreated slide - no glycogen staining; untreated slide - glycogen magenta
- Ctreated side - glycogen magenta; untreated slide - glycogen magenta
- Dtreated slide - glycogen colorless; untreated slide - glycogen colorless
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- Quiz on Histology, created by Natalie Collins on 19/05/2017.
- Author
- Natalie Collins
- Language
- English
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