Sugars

Cards (13)

What are monosaccharides?
Simplest sugars, and are building blocks of carbohydrates.
What do all carbohydrates contain?
Carbon, hydrogen, oxygen
What are the three main monosaccharides?
Glucose, fructose, and galactose.
How many carbon molecules are in glucose?
6
What are the two types of glucose molecules?
Alpha glucose and Beta glucose
What are alpha and beta glucose molecules?
They are isomers ( same molecular formula as each other but with atoms connected in a different way)
What is a disaccharide?
A disaccharide is a type of carbohydrate composed of two monosaccharide units joined together by a condensation reaction which a glycosidic bond forms between the two monsaccharides as a molecule of water is released.
What are the 3 main disaccharides?
Sucrose, lactose, maltose
How do you form sucrose?
Glucose + fructose
How do you form lactose?
Glucose + Galactose
What is the test for sugars?
The Benedict's Test
What happens when you heat a sample with Benedict's reagent and the sample stays blue?
No reducing sugars pleasant
What does it mean when you heat sample with Benedict's reagent and the sample changes colour from green , yellow, orange, brick red.
Reducing sugars are present