Digestive enzymes

The video explains how food is digested and absorbed into the bloodstream. It covers the breakdown of large food molecules like carbohydrates, proteins, and lipids into smaller molecules by enzymes. Carbohydrates are digested by amylase into sugars, proteins by protease into amino acids, and lipids by lipase into glycerol and fatty acids. The video also discusses the different conditions required for enzyme activity in the stomach and small intestine.

What must happen to food before it can be absorbed into the bloodstream?

• It must be cooled down.

• It must be converted into fat.

• It must be broken down and absorbed.

• It must be stored in the stomach.

Which enzyme is responsible for breaking down starch into smaller sugars?

• Trypsin

• Amylase

• Pepsin

• Lipase

Why is a different protease enzyme needed in the small intestine compared to the stomach?

• The small intestine has more enzymes.

• The small intestine is larger.

• The small intestine has a higher pH.

• The small intestine is colder.

What process is necessary before lipases can effectively digest lipids?

• Hydration

• Oxidation

• Emulsification

• Fermentation

Which molecules are lipids broken down into during digestion?

• Glycerol and fatty acids

• Starch and sugars

• Amino acids and glucose

• Proteins and carbohydrates