Digestive Enzymes and Their Functions

This video explains how carbohydrates, proteins, and lipids are broken down by enzymes into smaller molecules for absorption. Carbohydrates like starch are broken down into glucose by amylase and maltase. Proteins are digested into amino acids by protease enzymes such as trypsin and pepsin. Lipids are broken down into glycerol and fatty acids by lipase, with bile aiding in emulsification. The video also covers where these enzymes are produced in the body, including the pancreas, small intestine, salivary glands, and stomach. Additional learning resources are available on the Cognito website.

Why do we need to break down large biological molecules?

• To convert them into energy directly

• To make them taste better

• To store them for later use

• To absorb them into the bloodstream

What is the primary enzyme responsible for breaking down starch?

• Pepsin

• Amylase

• Lipase

• Protease

What are the smaller molecules that starch is broken down into?

• Glycerol

• Fatty acids

• Amino acids

• Glucose

Which enzyme group is responsible for breaking down proteins?

• Amylase

• Protease

• Maltase

• Lipase

What are proteins broken down into?

• Glucose

• Fatty acids

• Glycerol

• Amino acids

What are the end products of lipid breakdown?

• Glucose and amino acids

• Glycerol and fatty acids

• Starch and proteins

• Bile and enzymes

What role does bile play in the digestion of lipids?

• It converts glucose to energy

• It emulsifies lipids

• It absorbs amino acids

• It breaks down proteins

Where are all three types of digestive enzymes produced?

• Liver and stomach

• Salivary glands and liver

• Pancreas and small intestine

• Large intestine and pancreas

Which enzyme is also produced by the salivary glands?

• Protease

• Pepsin

• Lipase

• Amylase

Which organ also produces protease enzymes?

• Liver

• Stomach

• Large intestine

• Heart