Fructose is an example of:(A) Ketohexose(B) Aldohexose(C) Ketopentose(D) Aldopentose

To determine what type of sugar fructose is, let’s break down the options:

Aldose vs. Ketose:

Aldose: Sugars with an aldehyde group (-CHO) in their structure.
Ketose: Sugars with a ketone group (C=O) in their structure.
Hexose vs. Pentose:

Hexose: Sugars with six carbon atoms.
Pentose: Sugars with five carbon atoms.
Fructose is a sugar that contains a ketone group, making it a ketose. Specifically, it is a six-carbon sugar, so it's a hexose. Therefore, fructose is a ketohexose.

Answer: (A) Ketohexose