Carbohydrates Flashcards Preview

Jason's Metabolism Block > Carbohydrates > Flashcards

Flashcards in Carbohydrates Deck (27):
0

most abundant source of energy?

glucose

1

Fibre important for what 2 things?

diverticulosis and haemorrhoids

2

fiber and colon cancer:

not protective

3

Why have a low glycaemic index diet?

avoid high peak glucose levels, less insulin resistance

4

what is dextrose?

Glucose

5

Draw alpha D-glucopyranose

.

6

Which organs have glucose-6-pase?

liver and kidney to release free glucose

7

Where is Glut 2?

liver and kidney

8

what happens when liver is full with glycogen?

shunted into fatty acids

9

glycogen reactive?

chemically inert

10

what do you need to synthesize glycogen?

glucose-6-phosphate

11

Glycogen response to adrenaline?

rapidly digested and mobilized

12

What is Pompes Disease?

lysosomes engorged with glycogen because of lack of a-1,4-glucosidase

13

What does cyclic AMP do in glycogen fasting/flight?

secondary messenger and a force multiplier

14

Plant polysaccharides are what kind of glucose?

B1-4 linked D-glucose

15

what is non-starch polysaccharides?

cellulose or fibre

16

Changes over diet in last 5000 years

more sodium
more fat
not enough calcium/fibre

17

Hypertension in hunter gatherers?

Nope

18

white bread is mainly what part of wheat?

endosperm

19

whole grain bread includes what part of wheat?

husk, bran

20

what is beriberi?

thiamine deficiency

21

fibre does what in stomach and small intestine?

slows in stomach
speeds up in small intestine

22

dental caries when pH <_____

5.5 from sugars metabolised into acids by bacteria

23

gut transit time better if faster or slow?

better is faster with fibre

24

extra bulk of stool with added fibre is what?

water, fibre is hydrophilic

25

diverticulosis and haemorrhoids rarely seen is stools are how many grams per day?

>100 grams per day

26

what does low glycaemic index mean?

carbs that break down slowly and release into bloodstream gradually