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

A

SAM

24
Q

Histidine derivative

A

Histamine- promotes HCL secretion, vasodilation, neurotransmission

25
Q

Tryptophan derivative

A

serotonin a precursor of melatonin

26
Q

Tyrosine derivative

A

Epinephrine, Norepinephrine, Dopamine

27
Q

Albinism is a deficiency in?

A

Tyrosinase

28
Q

What tyrosine derivative is processed to form melanin

A

Dopaquinone

29
Q

What is Adenylylation?

A

Addition of a AMP ribonucleotide

30
Q

What is Uridylylation?

A

Addition of UMP ribonucleotide

31
Q

Pyruvate/Alanine exchange by?

A

SGPT

32
Q

OAA/Aspartate exchange by?

A

SGOT

33
Q

Alpha-Ketoglutarate/Glutamate exchange by?

A

Glutamate deydrogenase

34
Q

Glutamine donates an NH3 to Aspartate to form what?

A

Asparagine

35
Q

Derivative of Glycine

A

Heme

36
Q

Derivative of Glutamate

A

Glutathione, Polyamines, GABA

37
Q

Derivative of Arginine

A

NO,Creatine Phosphate

38
Q

Derivative of Methionine

A

SAM

39
Q

Derivative of Histidine

A

Histamine

40
Q

Derivative of Tryptophan

A

Serotonin

41
Q

Derivative of Tyrosine

A

Epinephrine/norepinephrine, dopamine,melanins