Question

question 7 (2 points)
when the linear form of a monosaccharide is converted into ring form, what happ
to the structure?
select all that apply.
the side chain is enclosed and locked into an alpha position.
the side chain is enclosed and locked into a beta position.
there is one fewer carbon as the shape is changed.
none of the above

Explanation:

When a monosaccharide converts from linear to ring form, it forms a hemi - acetal or hemi - ketal. The hydroxyl group (which was not part of the carbonyl in the linear form) reacts with the carbonyl carbon. The position (alpha or beta) of the newly formed hydroxyl group (anomeric hydroxyl) is not "locked" in a fixed position just by the conversion to ring form. Also, the number of carbons remains the same. So, none of the first three options are correct.

Answer:

None of the above