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BIOCHEMISTRY > PROTEINS > Flashcards

PROTEINS Flashcards

1
Q

Imino acid that is not considered as alpha carbon?

A

Proline

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2
Q

the determinants for the structure of proteins?

A

side chains

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3
Q

Has one amino group, one carboxyl group, and a side chain of nonpolar.

A

Nonpolar amino acid

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4
Q

Has one amino acid, one carboxyl group, and a polar side chain.

A

Polar neutral

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5
Q

Has two amino groups wherein one is a side chain, and, one carboxyl group.

A

Polar basic

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6
Q

Has two carboxyl groups wherein one is a side chain, and, one amino group.

A

Polar acidic

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7
Q

What is the difference of essential amino acid from non-essential?

A

Can only be obtained through dietary consumption

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8
Q

Arginine is essential for _____ growth but not for _____.

A

Arginine is essential for children’s growth but not for adult.

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9
Q

In your own words what is incomplete dietary protein

A

A protein where it does not encompasses the amount of protein a body needs (some vegetables and nuts)

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10
Q

In your own words what is limiting amino acid

A

Essential amino acid is lacking

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11
Q

Peptides: Uterus-contracting hormone

A

Oxytocin

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12
Q

Peptides: Vasodilator

A

Bradykinin

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13
Q

Peptides: Potent vasoconstrictor

A

Endothelin

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13
Q

Peptides: Potent vasoconstrictor

A

Endothelin

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14
Q

Peptides: Vasoconstrictor

A

Angiotensin II

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15
Q

Peptides: TSH

A

TRH

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16
Q

Peptides: Antioxidant

A

Glutathione

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17
Q

Peptides: Inhibit growth hormone

A

Somatostatin

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18
Q

Peptides: Honey bee venom

A

Mellitin

19
Q

Peptides: Hyperglycemic factor

A

Glucagon

20
Q

Peptides: Neuromodulators of brain and spinal chords

A

Enkephalins

21
Q

Peptides: Contributes to blood pressure control

A

Vasopression

22
Q

What are the amino acids that suffixes do not change into -ic and -ine

A

Non-polar: Trytophan
Polar: Cysteine, glutamine, asparagine

23
Q

What are the polar acidic?

A

HKR

24
Q

What are the polar base?

A

D,E

25
Q

Primary protein structure

A

Amino acid sequence

26
Q

Secondary protein structure

A

Hydrogen bonding (alpha helices, beta sheets, beta bends *reverse)

27
Q

Tertiary protein structure/polypeptide

A

there dimensional folding

28
Q

Quarternary

A

More than one amino acid chains, unbranched.

29
Q

Denaturation

A

Unfolding of secondary and tertiary structure

30
Q

What are used as denaturizing agent in denaturation?

A
  • Heat
  • organic solvents
  • mechanical mixing
  • strong acids/bases
  • detergents
  • ions of heavy metals ( LEAD AND MERCURY)
31
Q

What is disordered proteins?

A

Unstable tertiary structure of a protein

32
Q

What is the role of chaperone?

A

for order folding of proteins, they facilitate.

33
Q

Chaperone is referred to as ___ and _____.

A

molecular chaperone and ATP.

34
Q

Creutzfedlt-Jacob disease is caused by?

A

Prions from faulty folding

35
Q

Alzheimers disease is caused by?

A

Amyloid plaque

36
Q

A factor that affects the solubility of protein

A

Ph level. At isoelectric point, the solubility is at lowest.

37
Q

Molecular weight of protein

A

5 x 103 and 1 x 106.
Multiple of 35,000 and 70,000.

38
Q

What are the Essential amino acids

A

L,K,T,W,H,F,R,V,I,M

39
Q

What are the Nonessential amino acids

A

C,A,N,D,E,Y,S,P,Q,G

40
Q

What are the Non-polar AA

A

In,M,T,A,F,P,G,V,L

41
Q

What are the Polar Neutral

A

T,N,S,Q,C,Y

42
Q

Fibrous characteristics

A

Insoluble

43
Q

Globular characteristics

A

Soluble and can be denatured

44
Q

Has a water solubility and non heat coagulability character

A

Secondary derivatives of conjugated protein

45
Q

Edema present

A

Kwakshior

46
Q

What elements is protein composed of?

A

C,O,H,N,S

BIOCHEMISTRY (5 decks)

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