10-30-13 Metabilism and nutrition Flashcards
metabolism is sum total of ___ and physical changes
chemical
TEE =
RMR + physical acticity + TEF
(anabolism/catabolism) requires energy
anabolism
(catabolism/anabolism) yields energy
catabolism
(catabolism/anabolism) convergent
catabolism
(catabolism/anabolism) divergent
anabolism
T/F principles of metabolism proceeds in reactions
T
____ is when reactions are energetically linked
coupling
T/F ATP drives reactions
T
allosteric regulation has different types of stimulations name them.
feed forward stimulation and a feed back inhibition
allosteric regulation is a (covalen/noncovalent) transient effect
noncovalent
T/F in a allosteric regulation a effetor can be a substract or a product
T
Effector in allosteric regulation binds to a site different from the ___ site
active
allosteric regulation is (fast/slow) acting and (long/short) range communication
fast, short
T/F allosteric regulation allows enzymes/pathways to respons to intracellular signals
T
Covalent modification can be (positive/negative) effect on enzyme activity
both positive or negative
covalen modification is (irriversible/reversible) and transient effect
reversible
covalent modification is (fast/slow) acing and (short/long) range communication
fast, long
covalent modificaiton allows cell to respond to (intracellular/extracellular) signals
extracellular
allosteric regulation allows cell to respond to (intracellular/extracellular)
intracellular
induction and repression is a (reversible/permanent)effect
permanent
induction and repression are (slow/fast) and (short/long) range communication
slow, long
induciton and repression alow cell to respons to (intracellular/extracellular) signals
extracellular
a committed step is (reversible/irreversible) reaction and (different/unique) to the pathway
irreversible , unique
enzyme catalyzing a committed step (is/isnt) regulated
is
(RDA/EAR/AI/UL)average daily intake adequate for 50% of the healthy individuals in specific life stage and gender group
EAR
(RDA/EAR/AI/UL)average daily intake adequate for 97% of individuals in specific life stage and gender group
RDA
(RDA/EAR/AI/UL) estimated range of intake when RDA or EAR cannot be established due to insufficient scientific evidence
AI
(RDA/EAR/AI/UL) highest average daily intake with no adverse effects to almost no individuals (supplements & fortified foods)
UL
What does DRI stand for?
dietary reference intake
