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2ND SEM BIOCHEMISTRY > [RECALLS] DocOlavides1stevals2ndsemAAandpr FILE > Flashcards

[RECALLS] DocOlavides1stevals2ndsemAAandpr FILE Flashcards

1
Q

Nucleus of amino acid is:

A

a-carbon

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2
Q

a-amino acid are those with:

A

amine group attached

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3
Q

Protein molecule is composed of:

A

L-alpha- amino acid

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4
Q

Non-asymmetric alipathic amino acid

A

glycine

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5
Q

“MELICAV” amino acid with an a-carboxyl group.

A

valine

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6
Q

In the polypeptide chain, KILAW….LAMI, the amino acid with an a-amino group attached is:

A

lysine

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7
Q

Glu-Leu-Iso-Phe-Ala-Thr-Met-Tyr-Lys-Arg

A

ELIFATMYKR

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8
Q

Hydroxylated aromatic amino acid

A

tyrosine

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9
Q

An hydrophilic amino acid

a. IIsoleucine
b. Leucine
c. Glycine
d. Cysteine

A

Cysteine or glycine?

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10
Q

Amino acid that is abundant in tandem repeats in mucin:

a. Glycine
b. Alanine
c. Phenylalanine
d. Methionine
e. Proline

A

e. Proline

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11
Q

The common substrate is serine

a. 3-phosphoglycerate
b. Pyruvate
c. Oxaloacetate
d. Alphaketoglutarate

A

a. 3-phosphoglycerate

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12
Q 
The only amino acid whose intermediate is alanine
 A. Tyrosine
 B. Serine
 C. Threonine
 D. Hydroxyalanine
A

A. Tyrosine

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13
Q

Enzymr that cataluzes transamination of puruvate acid to alanine
A. Serum glutamic oxaloacetate transaminase
B. pyruvate dehydrogenase
C. Alanine hydroxymethyl transferase
D. Alanine transaminase

A

D. Alanine transaminase

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14
Q

Final stage for synthesis of serine:

A. Oxidation
B. Transamination
C. Dephosphorylation
D. Reduction

A

C. Dephosphorylation

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15
Q 
The hydroxylation of this amino acid from its precursor is irreversible.
 A. Aspartic Acid
 B. Glutamic Acid
 C. Tyrosine
 D. Alanine
A

C. Tyrosine

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16
Q

Breast milk is preferred for one year (T/F):

A

False (because for 6 months)?

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17
Q

Increase in volume = increase in milk fat (T or F)

A

False

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18
Q

Main component of casein is B-albumin

A

False

*Alpha

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19
Q

True or False:

Amount of prolactin produced is proportional to …. nipple stimulation.

A

True

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20
Q

True or False:

The concentration of tocopherols are high in colostrum, it decreases and stabilizes in mature
milk.

A

True

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21
Q

True or False:

Smoking limits maternal supply. But it is better to smoke and breastfeed than to smoke and
not breastfeed.

A

True

22
Q

True or False:

Transplacental transfer of vitamin K is adequate.

A

False

23
Q

True or False:

More preferred LC-PUFA pathway is omega-3-pathway.

A

True

24
Q

True or False:

More preferred LC-PUFA pathway is omega-3-pathway.

A

True

25
Q

True or False:

Vegan mothers require Vitamin B supplementation.

A

False

*iron ila need. High in B vit ang veggies except for b12 synthesized by intestinal bacteria

26
Q

True or False:

Malunggay will enhance milk production even if post partum mothers do not breastfeed.

A

False

27
Q

This hormone prevents lactation during pregnancy:

A

Progesterone

28
Q

Cellular mechanism to most of milk components:

A

Exocytosis

29
Q

Secretory IgA is secreted by:

A

Transyctosis

30
Q

Milk progesterone:

A

Prolactin

31
Q

Fat milk globule once enveloped by plasma membrane is released by:

A

Budding

32
Q

The mechanism to most of the milk components:

A

Exocytosis

33
Q

Pyruvate to alanine:

A

Alanine

34
Q

Reversible conversion of aspartic acid and asparagine:

A

AST

35
Q

Amino acid that functions in the transport of nitrogen from peripheral tissues to the liver?
(paki-edit if mali ang question…not sure. thanks)

A

Alanine

36
Q

Non-ionizable site:

A

H group

37
Q

Non essential amino acid

A

Tyrosine

38
Q

Which essential amino acid does not have an a-ketoacid precusor?

A

Threonine

39
Q

3-phosphoglycerate intermediate of:

A

Serine

40
Q

Last step in synthesis:

A

Dephosphorylation

41
Q

Provide proteins with unique structural and functional properties:

A

Side chains (R chains)

42
Q

valine differes from this aa by replacement of the hydroxyl froup with a methyl substituent:

A

threonine

43
Q

An essential amino acid having branched hrdrocarbon side chains

A

Isoleucine

44
Q

Indole funcrional froip on BC electronegative atom in ring system

A

Tryptophan

45
Q

Phenylanine with aromatic OH group

A

Tyrosine

46
Q

Express the strength of amino acid acidity

A

pKa

47
Q

guanidino group

A

Arginine

48
Q

polar and negatively charged at physiological pH

A

acidic amino acids

49
Q

present in tandem repeats

A

proline

50
Q

Does not have a chiral center, no D/L isomer

A

glycine

2ND SEM BIOCHEMISTRY (33 decks)

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