L: 32 Synthesis Flashcards

1
Q

What intermediate molecules from glycolysis are used to synthesize AA

A

3-phosphoglycerate, phosphoenolpyruvate, and pyruvate

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2
Q

What molecule from TCA cycle synthesize AA

A

alpha-ketoglutarate and oxaloacetate

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3
Q

what molecule from pentose pathway synthesize AA

A

ribose-5-phosphate and erythrose-5-phosphate

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4
Q

Nonessential AA

A

Alanine, Asparagine, Aspartic Acid, Cysteine, Glutamic Acid, Glutamine, Glycine, Proline, Serine, Tyrosine

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5
Q

essential AA tend to be_____ synthesis

A

Secondary

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6
Q

Glutamine maintains P2 in what form?

A

Inhibitor (-UMP)

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7
Q

Adenylylation does what to Glutamine synthetase?

A

Inactivates

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8
Q

Alpha-ketoglutarate and ATP maintain P2 in what form

A

Active (+UMP)

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9
Q

3-phosphoglycerate—>3rxn to make?

A

Serine

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10
Q

Serine—-> B6 and B12—–>to what?

A

Glycine

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11
Q

Serine is converted to cysteine through?

A

Homocysteine intermediate

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12
Q

Tyrosine is a catabolic intermediate of ?

A

Phenylalanine

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13
Q

Histidine is synthesized from

A

Ribose-5-phosphate

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14
Q

Tryptophan, Phenylalanine, and tyrosine synthesis begins by combining what?

A

Erythrose-4-phosphate and phosphoenolpyruvate to make Chorismate`

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15
Q

What are the branched AA valine, leucine, and isoleucine synthesized from?

A

Pyruvate

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16
Q

What are the two central AA

A

Glycine and Serine

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17
Q

What is the main source of dietary iron

A

Heme (a glycine derivative)

18
Q

Deficiencies in Heme synthesis

A

Porphyrias

19
Q

Non-liver enzyme deficiencies manifest as

A

light sensitivity and altered skin pigmentation

20
Q

Liver enzyme deficiencies usually show symptoms

A

pain and cardiac dysfunction

21
Q

Derived molecules of Glutamate

A

Glutathione
Polyamaines
GABA

22
Q

Argine derived molecules

A

NO

Creatine phosphate

23
Q

Methionine derivative

24
Q

Histidine derivative

A

Histamine- promotes HCL secretion, vasodilation, neurotransmission

25
Tryptophan derivative
serotonin a precursor of melatonin
26
Tyrosine derivative
Epinephrine, Norepinephrine, Dopamine
27
Albinism is a deficiency in?
Tyrosinase
28
What tyrosine derivative is processed to form melanin
Dopaquinone
29
What is Adenylylation?
Addition of a AMP ribonucleotide
30
What is Uridylylation?
Addition of UMP ribonucleotide
31
Pyruvate/Alanine exchange by?
SGPT
32
OAA/Aspartate exchange by?
SGOT
33
Alpha-Ketoglutarate/Glutamate exchange by?
Glutamate deydrogenase
34
Glutamine donates an NH3 to Aspartate to form what?
Asparagine
35
Derivative of Glycine
Heme
36
Derivative of Glutamate
Glutathione, Polyamines, GABA
37
Derivative of Arginine
NO,Creatine Phosphate
38
Derivative of Methionine
SAM
39
Derivative of Histidine
Histamine
40
Derivative of Tryptophan
Serotonin
41
Derivative of Tyrosine
Epinephrine/norepinephrine, dopamine,melanins