1. what differences(s) is(are) there in an a -glycosidic bond and a b -glycosidi
ID: 510573 • Letter: 1
Question
1. what differences(s) is(are) there in an a-glycosidic bond and a b-glycosidic bond?
a. a-glycosidic bonds occur in starch, b-glycosidic bonds occur in cellulose
b. a-glycosidic bonds involve condensation of a-glucose units via a C-1 hydroxyl group of one glucose molecule and a C-4 hydroxyl group of another. b-glycosidic bonds link b-glucose units in a similar fashion.
c. Humans can digest a-glycosidic bonds but not b-glycosidic bonds.
d. all the above
2. In biology, the primary linkages in proteins are called polypeptide linkages. Chemists call them _____ linkages.
a. polyester b. polyamide c. polyether
3. out of the four compounds, which has the lowest normal boiling point?
a. n-hexane b. n-nonane c. n-decane d. n-octane
Explanation / Answer
1) d) all the above
2) polyamide(-CO-NH-)
3) n-hexane
because it has less surface area as compared to remaining as result of this vandewall forecess less so by supplying the mimmum energy ,we can easily overcome those forcess.so that it has low boiling point
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