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Flashcards in Biochem 2 Ex 2 Deck (172)
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1

What is the storage form of carbohydrate?

glycogen

2

Which is bigger, proglycogen or macroglycogen?

macroglycogen

3

Which form of glycogen is more sensitive to dietary carbohydrate?

proglycogen

4

Which form of glycogen is synthesized more rapidly following post exercise glycogen depletion?

proglycogen

5

When does post exercise synthesis of proglycogen reach a plateau?

after 24 hours

6

Which form of glycogen is synthesized slowly and constantly?

macroglyocgen

7

When does synthesis of macroglycogen occur?

for at least 48 hours post exercise

8

Which form of glycogen is responsible for carb loading?

macroglycogen

9

What is the storage form of glucose in animals?

glycogen

10

What bonds are most frequent in glycogen?

a1,4

11

What type of bonds are a1-4 and a1-6 bonds?

glycosidic bonds

12

What bond forms the branches of glycogen?

a1,6 bonds

13

How many bonds in glycogen are a1-6?

1 out of about 10

14

What is the purpose of branching in glycogen?

increases solubility and gives it more accessible surface area to "eat"

15

What is the first carbon in D-Glucose?

the one double bonded to O and single bonded to one H

16

What is the first carbon in a-D-Glucopyranose?

to the right and down to the O

17

Where does an a1-4 bond take place?

between the 1 carbon of a glucose and the 4 carbon of another

18

What are the two types of starch?

amylose and amylopectin

19

Is amylose branched or unbranched?

unbranched

20

What bond takes place in amylose?

a1-4

21

Is amylopectin branched or unbranched?

branched

22

What bonds take place in amylopectin?

a1-4 and a1-6

23

How often do we see an a1-6 bond in amylopectin?

every 30 a1-4 bonds

24

How much glycogen is stored in skeletal muscle?

400 grams

25

How much glycogen is stored in the liver?

100 grams

26

How much glycogen is stored in other cells?

small quantities

27

Where is glycogen stored in the cell?

cytosol

28

Why is glucose trapped in muscle?

it lacks the enzyme needed to release glucose

29

How much glucose is not fully accessible during exercise?

about 1600 kcal

30

What is the first step of glycogen synthesis initiation?

glucose is turned into glucose-6 phosphate