Enzymes in digestion

What two main processes must occur for the body to utilize food for energy?

• Chewing and swallowing

• Digestion and absorption

• Metabolism and excretion

• Circulation and respiration

Lipids, carbohydrates and protein are examples of

• food

• nutrients

• waste products

• food tests

What are complex carbohydrates?

• Carbohydrates with fats attached to them

• Carbohydrates bonded to other molecules

• Lots of sugar molecules broken down in to smaller molecules

• Lots of sugar molecules bonded together

Which enzyme is responsible for the initial chemical breakdown of starch in the mouth?

• Pepsin

• Lipase

• Amylase

• Trypsin

What are protein molecules made up of?

• amino acids

• sugars

• protein units

• DNA

Why are different protease enzymes required for protein digestion in the stomach compared to the small intestine?

• The stomach and small intestine have different temperatures.

• The stomach and small intestine have different pH levels.

• Proteins are broken down into different molecules in each location.

• The small intestine only digests lipids, not proteins.

What process is necessary before lipase enzymes can effectively digest lipids?

• Hydrolysis

• Emulsification

• Condensation

• Absorption

What are the two protease enzymes called?

• Tipson

• Trypsin

• Pepsi

• Pepsin

Which three enzymes break food down in the small intestine?

• Lipase

• Trypsin

• Pepsin

• Amylase