MODULE 6 : CONVERSION OF AMINO ACIDS TO SPECIALIZED PRODUCTS

Question 0

Becomes atoms 4, 5, and 7 of purine

Answer 0

GLYCINE

Question 1

Amino acid source of creatine and creatinine in the liver

Answer 1

GLYCINE

Question 2

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

Answer 2

a-ALANINE

Question 3

Activates myosin ATPase, chelate copper and enhace copper uptake

Answer 3

B-ALANYL DIPEPTIDES

Question 4

Amino acid Source of spingosine which is a component of sphingomyelin

Answer 4

SERINE

Question 5

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

Answer 5

METHIONINE

Question 6

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

Answer 6

ARGININE

Question 7

Converted to epinephrine and norepinephrine in neural cells

Answer 7

TYROSINE

Question 8

An inhibitory neurotransmitter

Answer 8

GAMMA AMINOBUTYRATE

Question 9

Becomes atoms 4, 5, and 7 of purines

Answer 9

Glycine

Question 10

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

Answer 10

Glycine

Question 11

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

Answer 11

Alpha alanine

Question 12

Formed from cytosine, carnosine and anserine

Answer 12

Beta alanine

Question 13

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

Answer 13

Seryl
Threonyl
Tyrosyl

Question 14

Principal source of methyl groups in the body

Answer 14

SAM

- S adenosylmethionine

Question 15

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

Answer 15

Methionine

Question 16

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

Answer 16

3-diaminopropane

Question 17

A precursor of thioethanolamine portion of coenzyme A

Answer 17

Cysteine

Question 18

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

Answer 18

Spermine and spermidine

Question 19

Cysteine is a precursor of ____________ portion of coenzyme A

Answer 19

Thioethanolamine

Question 20

Cysteine precursor of thioethanolamine portion of _____________

Answer 20

Coenzyme A

Question 21

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

Answer 21

Cysteine

Question 22

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

Answer 22

Taurine

Question 23

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

Answer 23

Bile acid

Question 24

De carboxylation of histidine will result to?

Answer 24

Histamine

Question 25

What catalyzes the decarboxylation of histidine to histamine?

Answer 25

Broad spec aromatic L amino acid decarboxylase

Question 26

Formamidine donor for creatine synthesis

Answer 26

Arginine

Question 27

_________ via ornithine produces putrescine, spermine and spermidine

Answer 27

Arginine

Question 28

Arginine via ________ can synthesize putrescine, spermine and spermidine

Answer 28

Ornithine

Question 29

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

Answer 29

Creatinine

Question 30

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

Answer 30

Arginine

Question 31

These polyamines function in cell proliferation and growth

Answer 31

Spermine and spermidine

Question 32

Spermine and spermidine A. Polyamide B. Polyamine C. Neurotransmitter

Answer 32

B. Polyamine

Question 33

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

Answer 33

Tyrosine hydroxylase

Question 34

Subsequent decarboxylation of tryptophan forms what vasoconstrictor?

Answer 34

Serotonin

Question 35

Subsequent decarboxylation of this AA forms serotonin

Answer 35

Tryptophan

Question 36

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

Answer 36

Tryptamine | Indole 3 acetate

Question 37

Neural cells convert tyrosine to ______ and _______

Answer 37

Epinephrine | Norepinephrine

Question 38

Neural cells convert __________ to epi and norepi

Answer 38

Tyrosine

Question 39

AA that serves as a precursor of T3 and T4

Answer 39

Tyrosine

Question 40

Decarboxylation of L-glutamate will produce what neurotransmitter?

Answer 40

GABA

Question 41

GABA is formed from the decarboxylation of what AA?

Answer 41

L- glutamate

Question 42

What enzyme catalyzes the decarboxylation of L- glutamate?

Answer 42

L-glutamate decarboxylase