M4: L-3

Question 1

What are monosaccharides?

Answer 1

Simple sugars that cannot be broken down to more simple sugars

Question 2

What are the two steric categories for fisher projected carbohydrates?

Answer 2

D and L

Question 3

And R glyceraldehyde would be in which category when fisher projected? And an S?

Answer 3

• D

- L

Question 4

When labelling a carbohydrate D or L, which carbon do we base this of?

Answer 4

The carbon closest to the CH2OH

Question 5

What is included in the ring of a furanose?

Answer 5

Four C’s and one O

Question 6

What is included in the ring of a pyranose?

Answer 6

Five C’s and one O

Question 7

Is Glucose a furanose or a pyranose?

Answer 7

Pyranose

Question 8

In an alpha monosaccharide, is the OH group on the anomeric carbon on the same or opposite side as the CH2OH group?

Answer 8

Opposite

Question 9

In a beta monosaccharide, is the OH group on the anomeric carbon on the same or opposite side as the CH2OH group?

Answer 9

Same

Question 10

Is a solution of glucose equal parts alpha and beta?

Answer 10

No

• 37% alpha
• 63% beta