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PLE 2019 By Diane Malinao > Biochemistry: Proteins > Flashcards

Biochemistry: Proteins Flashcards

1
Q

What structure of amino acid dictates the function of the amino acid in a protein?

A

R group or Side chain

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2
Q

Amino acid with smallest side chain

A

Glycine

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3
Q

Branched chain amino acids

A

Valine, Leucine, Isoleucine

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4
Q

What amino acid is used for the first step of heme synthesis

A

Glycine

Glycine + Succinyl CoA ➡️ ALA

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5
Q

Amino acid that accumulates in phenylketonuria

A

Phenylalanine

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6
Q

Precursor for niacin, serotonin and melatonin

A

Tryptophan

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7
Q

Precursor of Tyrosine

A

Phenylalanine

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8
Q

Precursor of homocysteine and cysteine

A

Methionine

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9
Q

Amino acid which is a source of methyl grouos in metabolism

A

Methionine

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10
Q

An amino acid that contributes to the fibrous structure of collagen and interrupts alpha helices in globular proteins

A

Proline

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11
Q

Amino acid which is a precursor of thyroxine and melanin

A

Tyrosine

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12
Q

Amino acid which is a site for N-linked glycosylation of proteins

A

Asparagine

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13
Q

A sulfur containing amino acid which participates in the biosynthesis of coenzyme A

A

Cysteine

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14
Q

Amino acids: site of O linked gylcosylation

A

Serine
Threonine
Tyrosine

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15
Q

Precursor of Catecholamines

A

Tyrosine

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16
Q

Amino acids which accumulate in Maple Syrup Diseases

A

Valine, Leucine, Isoleucine

17
Q

Amino acid with Largest side chain

A

Tryoptophan

18
Q

Acidic Charged Amino Acids

A

Aspartate and Glutamate

19
Q

Amino acid: Precursor of major inhibitory neurotransmitter in the brain

A

Glutamate

20
Q

Amino acid: It is the major excitatory neurotransmitter in the brain.

A

Glutamate

21
Q

Amino acid used in the diagnosis of Folic Acid Deficiency

A

Histidine

22
Q

Amino Acid: precursor of creatinine, urea and nitric oxide

A

Arginine

23
Q

Amino Acid: precursor of Carnitine

A

Lysine

24
Q

21st Amino Acid

A

Selenocysteine

25
Q

Amino acid which is a precursor of histamine

A

Histidine

26
Q

The weakest base charged amino acid

A

Histidine

27
Q

Amide containing polar uncharged amino acids

A

Asparagine

Glutamine

28
Q

What do you call the group of amino acids which forms hydrogen bonds
A. Nonpolar
B. Polar uncharged
C. Charged

A

B. Polar uncharged Amino Acids

29
Q

Which amino acid is considered nutritionally semi essential?

A

Arginine

30
Q

These amino acids can be synthesized in the body but only from essential amino acid precursors

A

Cystine

Tyrosine

PLE 2019 By Diane Malinao (6 decks)

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