Digestive enzymes

Definition

Digestive enzymes are biological molecules that catalyze the breakdown of food into absorbable nutrients in the digestive system. They play a crucial role in converting complex macromolecules like proteins, carbohydrates, and fats into simpler forms.

5 Must Know Facts For Your Next Test

1. Digestive enzymes are produced by salivary glands, stomach, pancreas, and small intestine.
2. Amylase breaks down carbohydrates into simple sugars.
3. Proteases such as pepsin and trypsin break down proteins into amino acids.
4. Lipases break down fats into fatty acids and glycerol.
5. Enzyme activity can be influenced by pH levels and temperature.

Review Questions

• Which organs produce digestive enzymes?
• What is the function of amylase in digestion?
• How do proteases contribute to nutrient absorption?

Related terms

Amylase:

An enzyme that breaks down starches into sugars during digestion.

Protease: A type of enzyme that breaks down proteins into amino acids.

Lipase:

An enzyme responsible for breaking down fats into fatty acids and glycerol.