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dHA 2nd year - Botanical medicine > amino acids quiz > Flashcards

amino acids quiz Flashcards

(66 cards)

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1
Q

essential amino acids

A

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

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2
Q

neutral amino acids

A

S,T,C,Y,N,Q

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3
Q

thiol containing AA

A

cysteine

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4
Q

sulfide containing AA

A

methionine

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5
Q

contains phenolic group

A

tyrosine

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6
Q

can be found at the surface of the cell

hydrophilic and polar

A

tyrosine

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7
Q

contains an amido group at the beta carbon

A

asparagine

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8
Q

contains an amido group at the gamma carbon

A

glutamiine

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9
Q

neutral nonpolar

A

G,A,L,V,I,M,P,F,W

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10
Q

simplest AA because it contains 2 H

A

glycine

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11
Q

the only optically inactive AA

A

glycine

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12
Q

AA containing a methyl group

A

alanine

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13
Q

AA containing an isopropyl group

A

valine

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14
Q

AA containing isobutyl group

A

leucine

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15
Q

AA containing sec-butylgroup

A

isoleucine

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16
Q

beta-branched AA

A

V, L, I

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17
Q

contains an imino acid

cyclic but not aromatic

A

proline

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18
Q

has a phenyl ring

A

phenylalanine

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19
Q

contains an indole ring

A

tryptophan

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20
Q

acidic amino acids

A

D, E

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21
Q

Basic amino acids

A

H, K, R

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22
Q

has a primary amine

epsilon amino group

A

lysine

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23
Q

has a guanidinium ion

A

arginine

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24
Q

out of the 19 AA, what is the config of th 18 AA

A

S-configuration (counterclockwise)

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25
AA with R config
cysteine
26
most hydrophobic AA
isoleucine
27
least hydrophobic
proline
28
if pH > pKa, ionizable group will be
DEprotonated
29
if pH < pKa, ionizable group will be
protonated
30
if pH = pKa, ionizable group will be
mixture of protonated and deprotonated forms | zwitterion
31
in _______pH, peptides will be isolated
isoelectric
32
*A stereocenter occurs in all amino acids except for
glycine.
33
*The amino acids that occur in proteins are all of the --- form.
L
34
THE only AA which contains a secondary amine
proline
35
occur in some but not all proteins | -derived from the common amino acids
Uncommon Amino Acids
36
a free AA exist as ________
zwitterion
37
– has equal positive and negative charges | -electrically neutral in solution
*Zwitterion
38
the guanido group of arginine is connected to ___ carbon
delta
39
how many confi of AA exist in our biological system
1
40
a cpd that can act as acid and a base is called
amphoteric
41
a cpd that has both + and - charges is called
dipolar
42
Aromatic AA
Phenylalanine Tyrosine Tryptophan
43
Sulfur containing AA
Methionine | Cysteine
44
Alcohol AA
Serine threonine
45
Side chain of alanine
Methyl
46
Side chain of valine
Isopropyl
47
Side chain of isoleucine
Sec-butyl
48
Side chain of tryptophan
Indole ring
49
Side chain of methionine
Sulfide
50
Side chain of histidine
IMIDAZOLE
51
Side chain of leucine
Isobutyl
52
Side chain of asparagine
Amido group
53
AA uncharged but highly polar
Asparagine | Glutamine
54
Side chain of phenylalanine
Phenyl
55
Side chain of threonine
Alcohol
56
Side chain of serine
Alcohol
57
Side chain of lysine
Alkylamino
58
AA with amino group at epsilon carbon
Lysine
59
Side chain of arginine
Guanido group/guanidinium ion
60
Side chain of aspartate
Carboxylic acids/carboxylate anion
61
Side chain of glutamine
Amido group at the gamma carbon
62
Side chain of proline
Pyrrolidine
63
Side chain of glutamate
Carboxylicbacid/carboxylate at gamma carbon
64
Side chain of cysteine
Thiol
65
AA with 2 stereocenters
Isoleucine and threonine
66
AA are optically
active

dHA 2nd year - Botanical medicine (57 decks)

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