Biochemistry: AMINO ACIDS

Question 1

AA with -OH

Answer 1

S - Serine
T - Threonine
T- Tyrosine

Question 2

Nitrogen containing AA

Answer 2

Asparagine

Glutamine

Question 3

Sulfur contiaining AA

Answer 3

Cysteine

Shysteine

Question 4

Basic AA

Answer 4

BASIC H-A-L
H - histidine
A - arginine
L - lysine

Question 5

Acidic AA

Answer 5

aspartate

glutamate

Question 6

inhibitory AA (brain & SC)

Answer 6

G-G
brain: GABA
SC: glycine

Question 7

excitatory neurotransmitters

Answer 7

brain: Dopamine
SC: NE

Question 8

smallest AA?

R group?

Answer 8

glycine

- contains H as R-group

Question 9

used in the first step of heme synthesis

Answer 9

glycine

Question 10

branched chain AA?

Answer 10

L - leucine
I - isoleucine
V - valine

Question 11

what disease affecting branched chain AA?

Answer 11

MSUD

Question 12

what is the ONLY IMINO ACID?

function?

Answer 12

proline

- disrupts helices

Question 13

AA with aliphatic side chains

Answer 13

GAP LIV
G - glycine
a - alanine
p - proline
\+ branched AA

Question 14

aromatic AA

Answer 14

Aromatic (piatos shape ring)
Phenylalanine
Tyrosine
Tryptophan

Question 15

largest AA

Answer 15

tryptophan

Question 16

in PKU what enzyme is affected?

what AA increases? AA decreases?

Answer 16

tetrahydrobiopterin

• increased Phe
• decreased Tyr

Question 17

what is PARE TRUE LOVE DOES NOT EXIST TO ME?

Answer 17

Phe
tyr
l-dopa
dopa
norepi
epi
& thyroxine, melanin

Question 18

tryptophan precursors

Answer 18

TRY MSN
M - melanin
S - serotonin
N - niacin

Question 19

methionine precursor

Answer 19

cysteine

Question 20

AA for O - linked glycosylation?

AA for O - linked phosphorylation?

Answer 20

Glycosylation - Serine

Phosphorylation - Threonine

Question 21

forms disulfide bond

Answer 21

cysteine

Question 22

precursor of histamine?

what test is used in diagnosis?

Answer 22

histidine

- Folic Acid Deficiency (Figlu excretion test)

Question 23

AA that participates in the biosynthesis of Coenzyme A?

Answer 23

cysteine

Question 24

major carrier of nitrogen

Answer 24

glutamine

Question 25

arginine precursors?

Answer 25

CREATE UR NO | - creatinine, urea, NO

Question 26

21st AA

Answer 26

selenocysteine

Question 27

essential AA?

Answer 27

``` PVT TIM HALL always ARG never TYR phe val try threonine iso meth his arginine leucine lycine ```

Question 28

ketogenic AA

Answer 28

KiLL lycine leucine

Question 29

glucogenic and ketogenic

Answer 29

``` TRY Ph Isl TY! tryptophan phe isoleucine tyrosine ```

Question 30

AA especially needed for growth

Answer 30

Arginine

Question 31

sickle cell disease involves the change of glu to?

Answer 31

val

Question 32

hemoglobin c disease involves the change of glu to?

Answer 32

lysine

Question 33

methylmalonyl Coa mutase deficiency involves what AA?

Answer 33

``` VITamine Meth valine isoleucine threonine methionine ```