1 Flashcards

1
Q

Digestion of CHO

Polysaccharides (____ & ____) —> ______ —> _____ —> ______

enzyme used

A

Polysaccharides (Starch & Glycogen) —> various dextrins —> maltose —> glucose

enzyme: salivary amylase

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2
Q

Fructose 1,6 Biphosphate by–products
1.
2.

Glucose by products
1. aerobic
2. anaerobic

**
1. pyruvate yields _____ in mitochondria and this produces
- 2
- 2
2. these 4 proceeds to _____
3. ultimate goal of glucose is to convert glucose to _____ & ____

A

Fructose 1,6 Biphosphate by–products
1. Glyceraldehyde 3-P
2. Dihydroxyacetone phosphate

Glucose by products
1. lactate
2. pyruvate

**
1. acetyl coenzyme A
- Flavin adenine dinucleotide
- nicotinamide adenine dinucleotide
2. electron transport chain
3. carbon dioxide & water

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3
Q

3 Common Monosaccharides:

glucose + glucose =
glucose + fructose =
glucose + galactose =

enzyme that helps sugar for degradation

A

maltose
sucrose
lactose
Lactase

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4
Q
  1. helps glucose to be utilized or be absorbed inside the cell
    - produced by
  2. inhibits the production of insulin (only hormone that suppresses glucose)
    - produced by
  3. hormone in glycolysis
    - produced by
A
  1. INSULIN
    - beta cells of islets of langerhan
  2. SOMATOSTATIN
    - delta cells
  3. GLUCAGON
    - alpha cells
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5
Q

INTESTINAL ABSORPTION

  1. requires energy and enzyme
    - monosaccharides involved (2)
  2. presence of another molecule
    - monosaccharides involved (2)
  3. upon absorption, monosaccharides are brought to 3 major veins of GIT
  4. monosaccharides are transported to _____ via _____
A
  1. Active transport
    - glucose & galactose
  2. Facilitated diffusion
    - fructose & mannose
  3. Superior mesenteric vein, Inferior mesenteric vein, Splenic veins
  4. liver via portal vein
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6
Q

METABOLIC PROCESSES:
1. formation of glucose
2. conversion of glucose to glycogen
3. breakdown of glycogen to glucose
4. breakdown of glucose
5. formation of G-6-P from non carbohydrates source

A
  1. Glucogenesis
  2. Glycogenesis
  3. Glycogenolysis
  4. Glycolysis
  5. Gluconeogenesis
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7
Q

METABOLIC PATHWAY
1. related with aerobic and anaerobic
2. Krebs cycle aka
3. Mitochondria electron transport chain 2 procedures

A

METABOLIC PATHWAY
1. Embden-Meyerhof Pathway
2. Tricarboxylic acid cycle
3. electron transport; Oxidative Phosphorylation

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8
Q

SPECIMEN CONSIDERATIONS:
1. whole blood values ____ lower than serum
2. serum/ plasma should be refrigerated and separated from cells within
3. room temp for; ref temp
4. additive:
- anriglycolytic agent (___top)
- anticoagulant

A
  1. 10-15% lower
  2. 1hr
  3. ROOM TEMP for 8hrs; REF TEMP for 48-72hrs (2-3 days)
  4. additive:
    - sodium fluoride
    - potassium oxalate
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9
Q
  1. FBS approx fast
    - not ___
    - glucose is ___ in the morning
    - normal value
  2. immediate processing to prevent bacterial utilization of glucose
  3. only for monitoring of diabetics and not for diagnosis
A
  1. 8-10hr fast
    - >16hr
    - higher
    - 70-100mg/dl
  2. CSF glucose
  3. Urine sugar
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10
Q

GLUCOSE METHODS

_____: oxidation-reduction method
1. done in ___ medium
2. ____ + _____ = ____ anion for which reduces metallic ions

________
1. folin-wu: _____ —> ______
2. total reducing substances

A

Chemical Methods

Chemical Methods
1. alkaline medium
2. glucose + boiling water = eneidol

Alkaline Copper Reduction
1. phosphomolybdic acid —> phosphomolybdenum blue
2. true reducing substances and saccharoids

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