Which of the following is a ketose?

Prepare for the Clinical Chemistry Numericals Test. Study with comprehensive questions, each with detailed explanations. Boost your confidence and excel on your exam!

Multiple Choice

Which of the following is a ketose?

Explanation:
Ketoses have a ketone group on carbon 2, while aldoses carry an aldehyde on carbon 1. Fructose is a ketohexose, so its carbonyl is at C2, making it a ketose. Glucose and galactose are aldohexoses, with aldehyde at C1. Sucrose is a disaccharide composed of glucose and fructose, and as a whole isn’t classified as a ketose. Therefore, fructose is the ketose.

Ketoses have a ketone group on carbon 2, while aldoses carry an aldehyde on carbon 1. Fructose is a ketohexose, so its carbonyl is at C2, making it a ketose. Glucose and galactose are aldohexoses, with aldehyde at C1. Sucrose is a disaccharide composed of glucose and fructose, and as a whole isn’t classified as a ketose. Therefore, fructose is the ketose.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy