Portage Learning Questions and Verified Answers,
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1. which monosaccharide is not a 6-carbon monosaccharide?
a. fructose
b. ribose
c. mannose
d. galactose
e. glucose
...Ans>> b. ribose
2. what are the 2 monosaccharides shown below?
...Ans>> aldose (1 C2OH group) ketose (2 C3OH groups)
3. the 2 monosaccharides shown below could be best described as
,a. anomers
b. aldoses
c. ketoses
d. epimers
e. pentoses
...Ans>> d. epimers
*epimers = D/l
anomers = alpha/beta
4. what is an anomeric carbon?
...Ans>> the new chiral center formed in ring closure; it was the carbon
containing the carbonyl in the straight-chain form
attached to an -OR group, -OH group, C, and H
5. which arrow correctly identifies the atom that will become the anomeric
carbon?
...Ans>> carbon-1, which is at the top of the Fischer structure
6. based on the form of the cyclic sugar below in a Haworth projection,
, which Fischer projection formula could have formed this structure?
...Ans>> *look at the Haworth projection and create Fischer projections for it
7. the following monosaccharides are covalently bonded. what type of bond
unites them?
...Ans>> alpha 1-->6
8. which statement about cellulose is true?
a. cellulose is found in plants
b. cellulose in the primary storage polysaccharide of animal cells
c. cellulose is found in DNA
d. the glucose residues of cellulose contain the same configuration as the