Question

4. Label each of the following monosaccharides as an aldose or ketose, and state the number of carbons in each. For example, mannose in problem 2 is a "aldohexose". a. O || C—H | H—C—OH | H—C—OH | CH2OH b. O || C—H | H—C—OH | H—C—OH | HO—C—H | CH2OH c. O || C—H | HO—C—H | H—C—OH | HO—C—H | H—C—OH | CH2OH d. CH2OH | C=O | HO—C—H | H—C—OH | H—C—OH | CH2OH 5. How many stereoisomers are possible for each of the monosaccharides shown in question #4? 6. Based on their molecular formulas, which of the following are NOT carbohydrates? Circle please. a. C3H6O3 b. C6H18O9 c. C5H32O16 d. C4H8O4 e. C16H32O2 f. C6H12O6

          4. Label each of the following monosaccharides as an aldose or ketose, and state the number of carbons in each. For example, mannose in problem 2 is a "aldohexose".

a. O
   ||
   C—H
   |
H—C—OH
   |
H—C—OH
   |
   CH2OH

b. O
   ||
   C—H
   |
H—C—OH
   |
H—C—OH
   |
HO—C—H
   |
   CH2OH

c. O
   ||
   C—H
   |
HO—C—H
   |
H—C—OH
   |
HO—C—H
   |
H—C—OH
   |
   CH2OH

d. CH2OH
   |
   C=O
   |
HO—C—H
   |
H—C—OH
   |
H—C—OH
   |
   CH2OH

5. How many stereoisomers are possible for each of the monosaccharides shown in question #4?

6. Based on their molecular formulas, which of the following are NOT carbohydrates? Circle please.

a. C3H6O3
b. C6H18O9
c. C5H32O16
d. C4H8O4
e. C16H32O2
f. C6H12O6

4. Label each of the following monosaccharides as an aldose or ketose, and state the number of carbons in each. For example, mannose in problem 2 is a "aldohexose".

a. O
||
C—H
|
H—C—OH
|
H—C—OH
|
CH2OH

b. O
||
C—H
|
H—C—OH
|
H—C—OH
|
HO—C—H
|
CH2OH

c. O
||
C—H
|
HO—C—H
|
H—C—OH
|
HO—C—H
|
H—C—OH
|
CH2OH

d. CH2OH
|
C=O
|
HO—C—H
|
H—C—OH
|
H—C—OH
|
CH2OH

5. How many stereoisomers are possible for each of the monosaccharides shown in question #4?

6. Based on their molecular formulas, which of the following are NOT carbohydrates? Circle please.

a. C3H6O3
b. C6H18O9
c. C5H32O16
d. C4H8O4
e. C16H32O2
f. C6H12O6

Added by Steven A.

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