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
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