**Energy Metabolism Food Safety Flashcards Preview

Nutrition Semester 2 > **Energy Metabolism Food Safety > Flashcards

Flashcards in **Energy Metabolism Food Safety Deck (51)
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1

B cells responsible for

antibody production

2

T cells responsible for

cytokines
chemokines

3

Energy balance equation

energy intake + energy stores - expenditure

4

what if negative energy balance

stored as glycogen
fat
protein

5

cals in carb

4

6

cals in fat

9

7

cals in protein

4

8

cals in alcohol

7

9

macro with biggest thermic affect

protein - 25-30%

10

fructose v glucose

glucose metabolised by all body tissues
fructose only by liver

11

total energy expenditure depends on 3

BMR - 75%
physical activity - 20%
thermic effect of food - 10-%

12

What factors determine RMR

age
gender
physical activity
generics
thyroid
NS

13

how to carbs 'increase metabolism"

induce insulin secretion
increase sympathetic activity
increase energy expenditure

14

DNL stands for

de novo lipogenesis

15

ex drug-induced thermogenesis

nicotine
caffeine

16

ex psychological thermogenesis

anxiety
stress

17

3 ex disease/trauma req ^ energy requirements

burn patients
anorexia nervosa
cancer patients

18

What is lipostatic theory of control

eating behaviour regulated by body fat
raised free fatty acids in blood ^ hunger

19

what is amino static theory of control

a/a levels in blood monitored by brain
low a/as = hunger

20

serotonin effect on food intake

decreases appetite/carb cravings

21

dopamine on food intake

mediates food rewards

22

endorphins food intake

mediate pleasure response to sugar & fat

23

neuropeptide Y (NPY) food intake

potent stimulator of appetite

24

cholecystokinin CCK on food intake

^ satiety, delays gastric emptying

25

insulin on food intake

^ effect of cck

26

glucagon-like peptide 1 (GLP1) on food intake

^ satiety

27

bombesin on food intake

^ secretion of cck/gastrin

28

ghrelin on food intake

^ hunger
ghrelin ^ with food deprivation
I AM HUNGRY

29

leptin on food intake

^ satiety
I AM FULL
sends signal from adipocytes to CNS, regulates food intake

30

NT's/hormones ^ food intake

neuropeptide Y
ghrelin
(dopamine/endorphins)