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Biochem II > Carbohydrate Metabolism > Flashcards

Carbohydrate Metabolism Flashcards

1
Q

Maltase

A

Glucose

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2
Q

Isomaltase

A

Glucose

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3
Q

Sucrase

A

Glucose + Fructose

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4
Q

Lactase

A

Glucose + Galactose

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5
Q

SGLT 1

A

Na+-glucose cotransporter

Glucose and galactose move from the intestinal lumen into the cell

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6
Q

GLUT 1

A

most tissues

basal uptake

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7
Q

GLUT 2

A

liver & pancreas

facilitated diffusion

Glucose and galactose are extruded from the cell into the blood

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8
Q

GLUT 4

A

skeletal muscle & adipose tissue

INSULIN STIMULATED

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9
Q

GLUT 5

A

fructose-specific transporter

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10
Q

HEXOKINASE VS. GLUCOKINASE

A

HEXOKINASE

  • all tissues
  • low Km
  • allosteric enzyme
  • constitutive enzyme
  • relative specificity

GLUCOKINASE

  • ONLY liver
  • high Km
  • non-allosteric enzyme
  • insulin dependent
  • absolute specificity
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Biochem II (18 decks)

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