The Digestive System 30.3

What are the 5 steps of digestion? (Hint: I, M, C, A, E)

Ingestion Mechanical digestion Chemical digestion Absorption Elimination

What does the mouth do and what enzymes does it produce?

It breaks down starches with salivary amylase. 🍞

What does the stomach do and what enzyme does it produce?

It breaks proteins down into large peptides. Its enzyme is pepsin. 🍗

What does the liver do?

It helps digest fats. 🍳

What does the gall bladder do?

It holds bile.

What does the small intestine do and what enyzmes does it produce?

It is responsible for most of the chemical digestion/absorption inside the body. Its enzymes are maltase, sucrase, lactase and peptidase.

When taking antibiotics for an infection, it often kills all types of bacteria in your body. What effect would this have on your digestive system?

It would not have a good effect and it would be harder for you to digest because of the lack of probiotic bacteria.

What is the difference between mechanical and chemical digestion?

Mechanical digestion involves breaking the food up physically, and chemical is breaking it up using the body's substances.

Could stomachless individuals who are fed predigested food survive without a small intestine?

Yes, as long as the food is completely digested.