The Open-Chain Form of a Carbohydrate Contains a Carbonyl Group

question 7

Multiple Choice

The open-chain form of a carbohydrate contains a carbonyl group.This carbonyl group reacts to become an alcohol when the ring closes, forming the anomeric carbon.The type of carbonyl determines which type of ring is formed.Select the choice in which the type of carbonyl is paired with the correct type of ring that is formed.

• A) ketone and pyranose
• B) aldehyde and pyranose
• C) carboxylic acid and furanose
• D) carboxylic acid and pyranose
• E) aldehyde and furanose

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Definitions:

Cisterna Chyli

A dilated sac at the lower end of the thoracic duct into which lymph from the intestinal trunk and two lumbar lymphatic trunks flow.

Subclavian Veins

The subclavian veins are major veins located under the collarbone that transport blood from the arms and the upper thorax back to the heart.

Brachiocephalic Veins

Large veins located in the thorax that carry blood from the head, neck, and upper limbs back to the heart.

Lymph Trunks

Large lymphatic vessels that collect lymph from smaller lymphatic vessels and empty it into the venous system.