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Glucose generally exists in ring (cyclic) form. A Haworth projection shows the orientations of the hydroxyl groups and the hydrogen atoms on the ring. Draw the x and the ß forms of glucose by placing the groups (H, OH, or CH₂OH) in the appropriate positions. C H I. OH a-D-glucose H Answer Bank CH₂OH 10 -0. OH H -I OH k B-D-glucose

Glucose generally exists in ring (cyclic) form. A Haworth projection shows the orientations of the hydroxyl groups and the hydrogen atoms on the ring. Draw the x and the ß forms of glucose by placing the groups (H, OH, or CH₂OH) in the appropriate positions. C H I. OH a-D-glucose H Answer Bank CH₂OH 10 -0. OH H -I OH k B-D-glucose

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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### Glucose Structures in Cyclic Form #### Overview Glucose generally exists in a cyclic (ring) form. The structure can be visualized using a Haworth projection, which illustrates the orientations of the hydroxyl groups and hydrogen atoms on the ring. This guide explains the differences between the α and β forms of D-glucose. #### α-D-glucose - **Structure Description**: - A six-membered ring, with oxygen as one of the atoms in the ring. - Hydrogen (H) and hydroxyl group (OH) attached at various positions. - The hydroxyl group attached to the first carbon atom is positioned below the plane of the ring. #### β-D-glucose - **Structure Description**: - Similar to α-D-glucose with a six-membered ring. - The hydroxyl group attached to the first carbon atom is positioned above the plane of the ring. #### Completing the Structure To complete these structures, place each group (H, OH, CH₂OH) from the answer bank in the appropriate positions around the ring. ### Answer Bank - **H** - Hydrogen - **CH₂OH** - Methylene group with hydroxyl - **OH** - Hydroxyl group These groups should be placed in the blank positions depicted in the diagrams to form complete, accurate representations of the two forms of glucose.
Transcribed Image Text:### Glucose Structures in Cyclic Form #### Overview Glucose generally exists in a cyclic (ring) form. The structure can be visualized using a Haworth projection, which illustrates the orientations of the hydroxyl groups and hydrogen atoms on the ring. This guide explains the differences between the α and β forms of D-glucose. #### α-D-glucose - **Structure Description**: - A six-membered ring, with oxygen as one of the atoms in the ring. - Hydrogen (H) and hydroxyl group (OH) attached at various positions. - The hydroxyl group attached to the first carbon atom is positioned below the plane of the ring. #### β-D-glucose - **Structure Description**: - Similar to α-D-glucose with a six-membered ring. - The hydroxyl group attached to the first carbon atom is positioned above the plane of the ring. #### Completing the Structure To complete these structures, place each group (H, OH, CH₂OH) from the answer bank in the appropriate positions around the ring. ### Answer Bank - **H** - Hydrogen - **CH₂OH** - Methylene group with hydroxyl - **OH** - Hydroxyl group These groups should be placed in the blank positions depicted in the diagrams to form complete, accurate representations of the two forms of glucose.
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