Disaccharides Sucrose

The video tutorial explains the structure and properties of sucrose, a common disaccharide composed of glucose and fructose. It covers how to draw sucrose using the Haworth projection, the concept of molecular flipping, and the formation of glycosidic linkages. The tutorial also discusses the role of sucrose in the diet, its prevalence in modern foods, and its health implications, including its link to Western diseases like type 2 diabetes and heart disease.

What are the two monosaccharides that combine to form sucrose?

• Fructose and Lactose

• Galactose and Mannose

• Glucose and Galactose

• Glucose and Fructose

In the Haworth projection, how does fructose connect to glucose in sucrose?

• Through a double bond

• In a typical linear fashion

• By forming a ring structure

• In a unique, non-linear way

What is the specific glycosidic linkage found in sucrose?

• Beta-1,2

• Alpha-1,2

• Beta-1,4

• Alpha-1,4

Which configuration does the anomeric carbon of glucose have in sucrose?

• Gamma

• Beta

• Delta

• Alpha

Which of the following is a major source of sucrose in the modern diet?

• Natural fruits

• High fructose corn syrup

• Diet sodas

• Sports drinks

How does the consumption of sucrose relate to type 2 diabetes?

• It prevents diabetes

• It has no relation

• It is a primary cause

• It cures diabetes

What enzyme is responsible for breaking down sucrose in the small intestine?

• Maltase

• Amylase

• Sucrase

• Lactase

What is the main dietary role of sucrose?

• Source of ATP

• Source of fiber

• Source of protein

• Source of vitamins

What happens to sucrose in the stomach?

• It is fully digested

• It is absorbed into the bloodstream

• It remains unchanged

• It is partially digested

What is a common misconception about blood sugar and dietary sugar?

• Dietary sugar is glucose

• Blood sugar is sucrose

• They are completely unrelated

• They are the same