IRENE GOLD BIOCHEM BOARDS FINAL EXAM
NEWEST ACTUAL EXAM COMPLETE 450
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
How many amino acids are incorporated into proteins? - ANSWER20
All amino acids exist in what form, EXCEPT for glycine? - ANSWERL-form
All amino acids are in L-form EXCEPT for what? - ANSWERglycine
Glycine is not in L-form because? - ANSWERit doesn't contain a chiral carbon
define chiral carbon - ANSWERdifferent compounds at each binding site
All amino acids are what? - ANSWERamphoteric
define amphoteric - ANSWERcan act as an acid or base
What are the essential amino acids:
**PVT TIM HALL - ANSWER→phenylalanine
→valine
→tryptophan
→threonine
→isoleucine
→methionine
→histidine
→arginine
→leucine
→lysine
,Histidine is __________________ in a child but not an adult - ANSWERessential
What are the purely ketogenic amino acids? - ANSWERleucine and lycine
What does lysine do? - ANSWERprecursor to carnitine
What does carnitine do? - ANSWERtakes FA into mitochondria for B-oxidation
What are the AROMATIC amino acids? - ANSWER→phenylalanine
→tyrosine
→tryptophan
"Phen from house tyro-L trypt"
How many of the aromatic a.a.'s are ALSO essential? - ANSWER2
What type of ring does tryptophan have? - ANSWERindole ring
What are the sulfur-containing amino acids? - ANSWER→cysteine
→methionine
→cystine
Cystine is what? - ANSWER2 cysteines linked together
What are the BRANCHED amino acids? - ANSWER→isoleucine
→leucine
→valine
Maple syrup urine disease can't break down what? - ANSWERbranched amino acids
What are the acidic amino acid? - ANSWER→aspartic acid(aspartate)
→glutamic acid(glutamate)
Aspartame contains what? - ANSWERaspartic acid: XS = neurotoxic
What are the basic amino acid? - ANSWER→histidine
→lysine
,→arginine
Basic a.a.'s have the greatest ____________________________ at NORMAL pH of
blood. - ANSWERpositive net charge
What is the limiting amino acid for wheat? - ANSWERlysine
What is the limiting amino acid for rice? - ANSWERlysine
What is the limiting amino acid for legumes? - ANSWERtryptophan
What is the limiting amino acid for maize? - ANSWERlysine & tryptophan
What is the limiting amino acid for pulses? - ANSWERmethionine (OR cysteine)
What is the limiting amino acid for egg/chicken? - ANSWERNONE
(the reference for absorbable protein)
What is the amino acid derivative of:
phenylalanine? - ANSWERtyrosine
What happens when there's a deficiency of phenylalanine hydroxylase? -
ANSWERphenylketonuria= PKU
(can't covert to tyrosine)
What is the amino acid derivative of:
tyrosine ---> L-dopa ---> dopamine - ANSWER→catecholamines
→norepinephrine
→epinephrine
What is the a.a. derivative of:
tyrosine → L-dopa → - ANSWERmelanin
(skin pigmentation)
What happens if L-dopa can't convert to melanin? - ANSWERalbinism
What is the amino acids derivative of:
tyrosine - ANSWERT3, T4
What is the amino acid derivative of:
histidine - ANSWERhistamine
What is the amino acid derivative of:
tryptophan --->serotonin - ANSWERmelatonin
, What is the amino acid derivative of:
tryptophan --->niacin - ANSWERnicotinamide
For every 10kg of body weight, how many grams of protein are needed? - ANSWER8 g
Define Isoelectric point: - ANSWERpH when an a.a. has no net electrical charge
(neutral)
Define Zwitter ion: - ANSWERan amino acid at its isoelectric point
Define Glutathionine: - ANSWERTripeptide of glycine + glutamate + cysteine
Selenium (Se) is the mineral for what? - ANSWERenzyme glutathione peroxidase
Insulin is made up of what? - ANSWER2 polypeptide chains linked by disulfide bond
Insulin is not part of the animal cell membrane, but helps what? - ANSWERhelps
glucose enter the cell
What are compound classifications examples for polypeptide hormones? -
ANSWER→insulin
→glucagon
What are compound classifications examples for catecholamines? -
ANSWER→epinephrine
→norepinephrine
What are compound classifications examples for steroids? - ANSWER→testosterone
→cortisol
→estrogen
→progesterone
What is the characteristic bond of all proteins? - ANSWERpeptide bond
The peptide bond is a type of what bond that is specific for proteins? - ANSWERamide
bond
What are AKA's for peptide bond? - ANSWER→C-N bond
→Carboxyl-Amino bond
NEWEST ACTUAL EXAM COMPLETE 450
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
How many amino acids are incorporated into proteins? - ANSWER20
All amino acids exist in what form, EXCEPT for glycine? - ANSWERL-form
All amino acids are in L-form EXCEPT for what? - ANSWERglycine
Glycine is not in L-form because? - ANSWERit doesn't contain a chiral carbon
define chiral carbon - ANSWERdifferent compounds at each binding site
All amino acids are what? - ANSWERamphoteric
define amphoteric - ANSWERcan act as an acid or base
What are the essential amino acids:
**PVT TIM HALL - ANSWER→phenylalanine
→valine
→tryptophan
→threonine
→isoleucine
→methionine
→histidine
→arginine
→leucine
→lysine
,Histidine is __________________ in a child but not an adult - ANSWERessential
What are the purely ketogenic amino acids? - ANSWERleucine and lycine
What does lysine do? - ANSWERprecursor to carnitine
What does carnitine do? - ANSWERtakes FA into mitochondria for B-oxidation
What are the AROMATIC amino acids? - ANSWER→phenylalanine
→tyrosine
→tryptophan
"Phen from house tyro-L trypt"
How many of the aromatic a.a.'s are ALSO essential? - ANSWER2
What type of ring does tryptophan have? - ANSWERindole ring
What are the sulfur-containing amino acids? - ANSWER→cysteine
→methionine
→cystine
Cystine is what? - ANSWER2 cysteines linked together
What are the BRANCHED amino acids? - ANSWER→isoleucine
→leucine
→valine
Maple syrup urine disease can't break down what? - ANSWERbranched amino acids
What are the acidic amino acid? - ANSWER→aspartic acid(aspartate)
→glutamic acid(glutamate)
Aspartame contains what? - ANSWERaspartic acid: XS = neurotoxic
What are the basic amino acid? - ANSWER→histidine
→lysine
,→arginine
Basic a.a.'s have the greatest ____________________________ at NORMAL pH of
blood. - ANSWERpositive net charge
What is the limiting amino acid for wheat? - ANSWERlysine
What is the limiting amino acid for rice? - ANSWERlysine
What is the limiting amino acid for legumes? - ANSWERtryptophan
What is the limiting amino acid for maize? - ANSWERlysine & tryptophan
What is the limiting amino acid for pulses? - ANSWERmethionine (OR cysteine)
What is the limiting amino acid for egg/chicken? - ANSWERNONE
(the reference for absorbable protein)
What is the amino acid derivative of:
phenylalanine? - ANSWERtyrosine
What happens when there's a deficiency of phenylalanine hydroxylase? -
ANSWERphenylketonuria= PKU
(can't covert to tyrosine)
What is the amino acid derivative of:
tyrosine ---> L-dopa ---> dopamine - ANSWER→catecholamines
→norepinephrine
→epinephrine
What is the a.a. derivative of:
tyrosine → L-dopa → - ANSWERmelanin
(skin pigmentation)
What happens if L-dopa can't convert to melanin? - ANSWERalbinism
What is the amino acids derivative of:
tyrosine - ANSWERT3, T4
What is the amino acid derivative of:
histidine - ANSWERhistamine
What is the amino acid derivative of:
tryptophan --->serotonin - ANSWERmelatonin
, What is the amino acid derivative of:
tryptophan --->niacin - ANSWERnicotinamide
For every 10kg of body weight, how many grams of protein are needed? - ANSWER8 g
Define Isoelectric point: - ANSWERpH when an a.a. has no net electrical charge
(neutral)
Define Zwitter ion: - ANSWERan amino acid at its isoelectric point
Define Glutathionine: - ANSWERTripeptide of glycine + glutamate + cysteine
Selenium (Se) is the mineral for what? - ANSWERenzyme glutathione peroxidase
Insulin is made up of what? - ANSWER2 polypeptide chains linked by disulfide bond
Insulin is not part of the animal cell membrane, but helps what? - ANSWERhelps
glucose enter the cell
What are compound classifications examples for polypeptide hormones? -
ANSWER→insulin
→glucagon
What are compound classifications examples for catecholamines? -
ANSWER→epinephrine
→norepinephrine
What are compound classifications examples for steroids? - ANSWER→testosterone
→cortisol
→estrogen
→progesterone
What is the characteristic bond of all proteins? - ANSWERpeptide bond
The peptide bond is a type of what bond that is specific for proteins? - ANSWERamide
bond
What are AKA's for peptide bond? - ANSWER→C-N bond
→Carboxyl-Amino bond
