The L and D forms of alanine are in their \"standard\" Fischer projections, with

Question

The L and D forms of alanine are in their "standard" Fischer projections, with the carbon chain written vertically. Below are alternative Fischer structures. Idenfity each alternative structure as "D" or "L" by dragging it into the appropriate bin beside the standard structures.

Mapo sapling learning e Land D forms of alanine are shown in their "standard" Fischer projections, with the carbon chain ten vertically. Below are alternative Fischer structures. Identify each alternative structure as "D" or "L" by dragging it into the appropriate bin beside the standard structures COOH CH3 CH3 COOH COOH NH2 CH3 L-alanine COOH NH2 HOOC NH2 HOOC HNH2 CH3 NH2 CH3 D-alanine

Explanation / Answer

L alanine      choose only 2nd formula

D alanine choose only 1st formula

In the The Fischer Projection :

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If you want to understand build a paper 3D model.

The magic method: If you you can restore the original structural formula by an even number of position interchanges made in the proposed formula, then the two formulas are for the same isomer.

Here, for L-alanine you have:

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