organic chemistry carbohydrates 1) What is the proper classification of: (2R,3S,

Question

organic chemistry carbohydrates

1) What is the proper classification of: (2R,3S,4R-2,3,4,5-tetrahydroxypentanal? D-ketohexose L-aldohexose L-aldonentose D-aldopentese 2)Look at the chair conformations of all of the D-aldohexoses (you can google them). Why do you think our body evolved to use D-glucose over all the others? 3)How many D-stereoisomers are there of a ketobeptose? 16 4 4) When D-threose (look it up!) is treated with sodium boxohydride in water, it forms: a racemic mixture of alditels a meso alditel an optically active alditel an optically active aldonic acid

Explanation / Answer

1 D

2.Because it has a specific structure or distribution of molecules at each carbon atom. And our body used it for many metabolic pathways.

3. A 16 D-isomers

4. A racmic mixture of aldot

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