Digestive System Functions and Processes

The digestive system is responsible for breaking down food and absorbing nutrients. It starts in the mouth where carbohydrates begin to digest. Proteins are processed in the stomach, and all nutrients are absorbed in the small intestine. Pancreatic juice and bile aid in digestion, while the colon absorbs water and minerals, with its bacteria producing vitamins.

What is the initial step in the digestion process?

• Crushing of food in the mouth

• Absorption in the colon

• Absorption in the small intestine

• Digestion in the stomach

Where does the digestion of proteins primarily occur?

• Colon

• Stomach

• Small intestine

• Mouth

Which organ secretes bile to aid in lipid digestion?

• Liver

• Small intestine

• Stomach

• Pancreas

What is absorbed in the colon?

• Proteins

• Carbohydrates

• Water and minerals

• Lipids

What is produced by the bacterial flora in the colon?

• Hormones

• Vitamins

• Acids

• Enzymes