Understanding Carbohydrates and Glucose

The video explains how plants use photosynthesis to create glucose, which is then broken down in respiration. It covers the structure and function of carbohydrates, including monosaccharides, disaccharides, and polysaccharides like starch and glycogen. The video also discusses the role of enzymes in breaking down sugars and the importance of cellulose in plant cell walls.

What is the process called where plants use sunlight to create glucose?

• Respiration

• Photosynthesis

• Fermentation

• Glycolysis

Which of the following is a simple sugar made of one subunit?

• Disaccharide

• Oligosaccharide

• Polysaccharide

• Monosaccharide

What type of reaction involves two molecules combining to form a larger molecule with the loss of a smaller molecule?

• Condensation

• Hydrolysis

• Oxidation

• Reduction

Which enzyme is responsible for breaking down lactose in the gut?

• Amylase

• Lactase

• Maltase

• Sucrase

What is the enzyme that digests sucrose?

• Invertase

• Amylase

• Sucrase

• Lactase

Why do starchy foods like rice and bread not taste sweet initially?

• They contain no glucose

• They are too dry

• They lack flavor

• Glucose is in a polymer form

What is the function of the enzyme amylase?

• Breaks down proteins

• Converts glucose to glycogen

• Breaks down amylose into simple sugars

• Synthesizes glucose

How do humans store glucose for long-term energy?

• As starch

• As cellulose

• As glycogen

• As sucrose

What is the main component of plant cell walls?

• Chitin

• Glycogen

• Cellulose

• Starch

What role does insulin play in the body?

• Signals the liver and muscle to store glucose as glycogen

• Converts glycogen to glucose

• Breaks down glucose

• Increases blood sugar levels