Digestive System Functions and Enzymes

Mr. Herpst explains the digestion process in the duodenum, the first part of the small intestine. He discusses how chyme from the stomach is processed with the help of bile from the gallbladder and liver, and enzymes from the pancreas. The duodenum plays a crucial role in breaking down fats, proteins, and carbohydrates. Hormones like secretin and cholecystokinin regulate these processes. The video also covers the role of lactase in lactose digestion and the implications of lactose intolerance.

What is the primary function of the duodenum in the digestive system?

• Production of bile

• Absorption of nutrients

• Storage of food

• Digestion of food

Which organ releases bile into the duodenum?

• Stomach

• Liver

• Gallbladder

• Pancreas

What is the role of secretin in the duodenum?

• Absorbs nutrients

• Neutralizes stomach acid

• Stimulates bile production

• Breaks down proteins

How does bicarbonate help in the duodenum?

• It absorbs nutrients

• It digests proteins

• It neutralizes acid

• It emulsifies fats

What is the function of bile in the digestive process?

• Breaks down proteins

• Neutralizes acid

• Emulsifies fats

• Absorbs carbohydrates

Which enzyme is responsible for breaking down fats?

• Amylase

• Lipase

• Protease

• Lactase

What condition results from a deficiency of lactase?

• Celiac disease

• Lactose intolerance

• Irritable bowel syndrome

• Crohn's disease

Which enzyme breaks down lactose in the digestive system?

• Lactase

• Amylase

• Lipase

• Protease

What is the role of proteases in digestion?

• Break down nucleic acids

• Break down fats

• Break down proteins

• Break down carbohydrates

Which of the following is NOT a function of the pancreas in digestion?

• Secreting enzymes

• Neutralizing acid

• Releasing bicarbonate

• Producing bile