10-30-13 Metabilism and nutrition Flashcards Preview

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Flashcards in 10-30-13 Metabilism and nutrition Deck (30):
1

metabolism is sum total of ___ and physical changes

chemical

2

TEE =

RMR + physical acticity + TEF

3

(anabolism/catabolism) requires energy

anabolism

4

(catabolism/anabolism) yields energy

catabolism

5

(catabolism/anabolism) convergent

catabolism

6

(catabolism/anabolism) divergent

anabolism

7

T/F principles of metabolism proceeds in reactions

T

8

____ is when reactions are energetically linked

coupling

9

T/F ATP drives reactions

T

10

allosteric regulation has different types of stimulations name them.

feed forward stimulation and a feed back inhibition

11

allosteric regulation is a (covalen/noncovalent) transient effect

noncovalent

12

T/F in a allosteric regulation a effetor can be a substract or a product

T

13

Effector in allosteric regulation binds to a site different from the ___ site

active

14

allosteric regulation is (fast/slow) acting and (long/short) range communication

fast, short

15

T/F allosteric regulation allows enzymes/pathways to respons to intracellular signals

T

16

Covalent modification can be (positive/negative) effect on enzyme activity

both positive or negative

17

covalen modification is (irriversible/reversible) and transient effect

reversible

18

covalent modification is (fast/slow) acing and (short/long) range communication

fast, long

19

covalent modificaiton allows cell to respond to (intracellular/extracellular) signals

extracellular

20

allosteric regulation allows cell to respond to (intracellular/extracellular)

intracellular

21

induction and repression is a (reversible/permanent)effect

permanent

22

induction and repression are (slow/fast) and (short/long) range communication

slow, long

23

induciton and repression alow cell to respons to (intracellular/extracellular) signals

extracellular

24

a committed step is (reversible/irreversible) reaction and (different/unique) to the pathway

irreversible , unique

25

enzyme catalyzing a committed step (is/isnt) regulated

is

26

(RDA/EAR/AI/UL)average daily intake adequate for 50% of the healthy individuals in specific life stage and gender group

EAR

27

(RDA/EAR/AI/UL)average daily intake adequate for 97% of individuals in specific life stage and gender group

RDA

28

(RDA/EAR/AI/UL) estimated range of intake when RDA or EAR cannot be established due to insufficient scientific evidence

AI

29

(RDA/EAR/AI/UL) highest average daily intake with no adverse effects to almost no individuals (supplements & fortified foods)

UL

30

What does DRI stand for?

dietary reference intake