Glycosidic Bonds and Carbohydrate Enzymes

This video explains the role of alpha and beta monosaccharides in forming disaccharides and polysaccharides. It covers the formation of disaccharides like sucrose, maltose, and lactose through glycosidic bonds, and the enzymes that break them down. The video also discusses polysaccharides such as cellulose, starch, and glycogen, detailing their structures and the enzymes involved in their breakdown.

What is a glycosidic bond?

• A bond between two lipids

• A bond between two nucleic acids

• A bond between a carbohydrate and another group

• A bond between two proteins

Which monosaccharides make up sucrose?

• Glucose and galactose

• Fructose and galactose

• Two glucose molecules

• Glucose and fructose

What type of glycosidic bond is found in maltose?

• Beta 1-6

• Alpha 1-6

• Alpha 1-4

• Beta 1-4

Which enzyme breaks down lactose?

• Lactase

• Amylase

• Maltase

• Sucrase

What is cellulose primarily composed of?

• Beta-D glucose

• Galactose

• Alpha-D glucose

• Fructose

Which enzyme is capable of breaking down cellulose?

• Amylase

• Cellulase

• Maltase

• Lactase

What is the linear form of starch called?

• Amylose

• Cellulose

• Amylopectin

• Glycogen

Which type of glycosidic bond is found in the branched structure of starch?

• Beta 1-6

• Alpha 1-6

• Beta 1-4

• Alpha 1-4

How does glycogen differ from starch in terms of structure?

• Starch is more branched than glycogen

• Glycogen is more branched than starch

• Both are linear

• Glycogen is linear, starch is branched

Which enzymes can break down the glycosidic bonds in glycogen?

• Sucrase and isomaltase

• Cellulase and lactase

• Lactase and sucrase

• Amylase and maltase