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BIOCHEMISTRY (MODULE 6) > MODULE 6 : CONVERSION OF AMINO ACIDS TO SPECIALIZED PRODUCTS > Flashcards

MODULE 6 : CONVERSION OF AMINO ACIDS TO SPECIALIZED PRODUCTS Flashcards

0
Q

Becomes atoms 4, 5, and 7 of purine

A

GLYCINE

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1
Q

Amino acid source of creatine and creatinine in the liver

A

GLYCINE

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2
Q

Amino acid that constitutes the major fraction of free amino acids in plasma together with glycine

A

a-ALANINE

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3
Q

Activates myosin ATPase, chelate copper and enhace copper uptake

A

B-ALANYL DIPEPTIDES

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4
Q

Amino acid Source of spingosine which is a component of sphingomyelin

A

SERINE

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5
Q

Amino acid which is the principal source of methyl groups in the body

A

METHIONINE

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6
Q

Amino acid precursor of Nitric Oxide, a neurotransmitter, vasodilator and smooth muscle relaxant

A

ARGININE

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7
Q

Converted to epinephrine and norepinephrine in neural cells

A

TYROSINE

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8
Q

An inhibitory neurotransmitter

A

GAMMA AMINOBUTYRATE

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9
Q

Becomes atoms 4, 5, and 7 of purines

A

Glycine

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10
Q

N and alpha carbons of this AA is incorporated into pyrrole rings and methylene bridge carbons of heme

A

Glycine

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11
Q

Together with glycine, this constitutes as the major fraction of the free AA in plasma

A

Alpha alanine

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12
Q

Formed from cytosine, carnosine and anserine

A

Beta alanine

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13
Q

Phosphorylation and dephosphorylation of these residues of enzymes involved in lipid and carbohydrate metabolism

A

Seryl
Threonyl
Tyrosyl

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14
Q

Principal source of methyl groups in the body

A

SAM

- S adenosylmethionine

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15
Q

Aa that contributes its carbon skeleton for the biosynthesis of the 3-diaminopropane portions of polyamines spermine and spermidine

A

Methionine

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16
Q

Methionine contributes its carbon skeleton for the biosynthesis of the _____________ portions of polyamines spermine and spermidine

A

3-diaminopropane

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17
Q

A precursor of thioethanolamine portion of coenzyme A

A

Cysteine

18
Q

Methionine that contributes its carbon skeleton for the biosynthesis of the 3-diaminopropane portions of polyamines _________________

A

Spermine and spermidine

19
Q

Cysteine is a precursor of ____________ portion of coenzyme A

A

Thioethanolamine

20
Q

Cysteine precursor of thioethanolamine portion of _____________

A

Coenzyme A

21
Q

Precursor of the taurine that conjugates with bile acid (taurocholic acid)

A

Cysteine

22
Q

Cysteine is a precursor of the _________ that conjugates with bile acid (taurocholic acid)

A

Taurine

23
Q

Cysteine is a precursor of the taurine that conjugates with ____________ (taurocholic acid)

A

Bile acid

24
Q

De carboxylation of histidine will result to?

A

Histamine

25
Q

What catalyzes the decarboxylation of histidine to histamine?

A

Broad spec aromatic L amino acid decarboxylase

26
Q

Formamidine donor for creatine synthesis

A

Arginine

27
Q

_________ via ornithine produces putrescine, spermine and spermidine

A

Arginine

28
Q

Arginine via ________ can synthesize putrescine, spermine and spermidine

A

Ornithine

29
Q

24 hour excretion of this metabolite is proportionate to muscle mass and is a useful indicator of kidney function

A

Creatinine

30
Q

This AA serves as a precursor of the intercellular signaling molecule NO

A

Arginine

31
Q

These polyamines function in cell proliferation and growth

A

Spermine and spermidine

32
Q

Spermine and spermidine

A. Polyamide
B. Polyamine
C. Neurotransmitter

A

B. Polyamine

33
Q

Hydroxylation of tryptophan to 5-hydroxytryptophan is acted upon by what liver enzyme?

A

Tyrosine hydroxylase

34
Q

Subsequent decarboxylation of tryptophan forms what vasoconstrictor?

A

Serotonin

35
Q

Subsequent decarboxylation of this AA forms serotonin

A

Tryptophan

36
Q

Kidney and liver tissue, and the bacteria, converts tryptophan to __________ then to _________

A

Tryptamine

Indole 3 acetate

37
Q

Neural cells convert tyrosine to ______ and _______

A

Epinephrine

Norepinephrine

38
Q

Neural cells convert __________ to epi and norepi

A

Tyrosine

39
Q

AA that serves as a precursor of T3 and T4

A

Tyrosine

40
Q

Decarboxylation of L-glutamate will produce what neurotransmitter?

A

GABA

41
Q

GABA is formed from the decarboxylation of what AA?

A

L- glutamate

42
Q

What enzyme catalyzes the decarboxylation of L- glutamate?

A

L-glutamate decarboxylase

BIOCHEMISTRY (MODULE 6) (9 decks)

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