Metabolism: Carbohydrates Flashcards Preview

Cell and Molecular Biology > Metabolism: Carbohydrates > Flashcards

Flashcards in Metabolism: Carbohydrates Deck (14)
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1
Q

Draw the structure of glucose and fructose

A
2
Q

Draw the structure of D-glyceraldehyde

A
3
Q

Draw the structure of D-Erythrose

A
4
Q

Draw the structures of the following 5 carbon aldose sugars:

Ribose

Arabinose

Xylose

(How will you remember these?)

A

Ribose = literally Glyceraldehyde w/ 2 extra carbons

Arabinose: ribose w/ OH and H flipped at C2

Xylose: Ribose w/ OH and H flipped at C3

5
Q

Draw the structures of the following 5 carbon aldose sugars:

Ribose

Arabinose

Xylose

(How will you remember these?)

A

Ribose = literally Glyceraldehyde w/ 2 extra carbons

Arabinose: ribose w/ OH and H flipped at C2

Xylose: Ribose w/ OH and H flipped at C3

6
Q

Draw the structures of the following 5 carbon aldose sugars:

Ribose

Arabinose

Xylose

(How will you remember these?)

A

Ribose = literally Glyceraldehyde w/ 2 extra carbons

Arabinose: ribose w/ OH and H flipped at C2

Xylose: Ribose w/ OH and H flipped at C3

7
Q

Draw the structures of the following 6 carbon aldose sugars

Glucose

Mannose

Galactose

A
8
Q

Draw the structures of the following 6 carbon aldose sugars

Glucose

Mannose

Galactose

A
9
Q

Draw the structures of the following 6 carbon aldose sugars

Glucose

Mannose

Galactose

A
10
Q

Which 3 carbon ketose sugar is this?

A
11
Q

Below is the structure of ___, which can become ___ when phosphorylated at C6.

A

Fructose

F6P

12
Q

What intermediates can aldoses and ketoses form that allows them to form polymers?

A

Aldose: Hemicetal

Ketose: Hemiketal

13
Q

Define a reducing sugar

A

One that can be oxidized back to its chair conformation

14
Q

How do you form a glycosidic bond? How do you break a glycosidic bond?

A

Condensation reaction to form a glycosidic bond

Hydrolysis reaction to break the glycosidic bond