What is the process of breaking down food into smaller molecules called?

• respiration

• excretion

• digestion

• absorption

Which organ is responsible for producing bile?

• liver

• kidney

• pancreas

• stomach

What is the main function of enzymes in digestion?

• Produce saliva

• Absorb nutrients

• Break down food

• Transport food

Which organ is responsible for absorbing nutrients into the bloodstream?

• stomach

• liver

• pancreas

• small intestine

What is the first step in the digestion process?

• ingestion

• metabolism

• excretion

• absorption

Which enzyme breaks down proteins in the stomach?

• lipase

• amylase

• cellulase

• pepsin

What is the function of the small intestine in the digestive system?

• Secretion of digestive enzymes

• Elimination of waste products

• Absorption of nutrients

• Production of bile

Which organ stores and concentrates bile?

• liver

• gallbladder

• pancreas

• stomach

What is the process by which nutrients are taken into the cells of the body?

• cellular uptake

• cellular excretion

• cellular absorption

• cellular secretion

Which enzyme breaks down carbohydrates in the mouth?

• cellulase

• protease

• lipase

• amylase