Biochemistry
Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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5.

**Question:**

Which of the terms explain the relationship between the two compounds?

**Diagram Explanation:**

The image shows two structures of galactose, which are cyclic forms of the sugar. On the left is α-D-galactose, and on the right is β-D-galactose. Both structures have a similar carbohydrate ring structure but differ at the first carbon position (anomeric carbon). In α-D-galactose, the hydroxyl group (OH) at the anomeric carbon is positioned downward, whereas in β-D-galactose, it is positioned upward. This difference is key to their classification.

**Answer Options:**

- [ ] anomers
- [ ] epimers
- [ ] diastereomers
- [ ] enantiomers

The correct choice is "anomers," as they differ in configuration only at the anomeric carbon.
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Transcribed Image Text:**Question:** Which of the terms explain the relationship between the two compounds? **Diagram Explanation:** The image shows two structures of galactose, which are cyclic forms of the sugar. On the left is α-D-galactose, and on the right is β-D-galactose. Both structures have a similar carbohydrate ring structure but differ at the first carbon position (anomeric carbon). In α-D-galactose, the hydroxyl group (OH) at the anomeric carbon is positioned downward, whereas in β-D-galactose, it is positioned upward. This difference is key to their classification. **Answer Options:** - [ ] anomers - [ ] epimers - [ ] diastereomers - [ ] enantiomers The correct choice is "anomers," as they differ in configuration only at the anomeric carbon.
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