main points of biochem Flashcards

1
Q

pt with

garlic breath

vomiting

rice water stools

QT prolongation

A

arsenic poisoning.

arsenic inhibits lipoic acid. which is needed for pyruvate dehydrogenase complex.

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2
Q

tx for

pyruvate dehydrogenase def

A

ketogenic amino acids

(**Lysine, leucine)

vit supplementation if its caused by

vit B def (thiamine)

“Lysine and Leucine - the onLy pureLy ketogenic AA)

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3
Q

what is the rate limiting enzyme for TCA cycle

A

Isocitrate dehydrogenase

isocitrate –> a-ketoglutarate

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4
Q

what are the 3 key enzymes you need to know for TCA cycle?

A

citrate synthase

isocitrate dehydrogenase

a-ketoglutarate dehydrogenase

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5
Q

what 4 end products can be made from pyruvate

A

oxaloacetate

lactate

acetyl-CoA

Alanine

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6
Q

what 4 B vitamins are needed to make cofactor for pyruvate dehydrogenase

A

B1 (thiamine) –> TTP

B2 (riboflavin) –> FAD+

B3 (niacin) –> NAD+

B5 (pantothenic acid) –> Co enzyme A

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7
Q

cause of

familial hypercholesteralemia

A

def of

LDL receptors

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8
Q

which apolipoprotein matches the statement

activates LCAT

A

ApoA-1

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9
Q

which apolipoprotein matches the statement?

mediates Chylomicron secretion

A

ApoB-48

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10
Q

which apolipoprotein matches the statement

mediates VLDL secretion

A

ApoB-100

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11
Q

which apolipoprotein matches the statement

cofactor for lipoprotein lipase

A

ApoC-II

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12
Q

which apolipoprotein matches the statement

mediates uptake of remnant particles

A

ApoE

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13
Q
A
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14
Q
A
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