Digestive System

Question 1

mechanical digestion main function:

Answer 1

is to break food down into smaller
pieces (increase surface area) so the chemicals can digest it further into, eventually, monomers.

Question 2

Mouth:

Answer 2

-Mechanical digestion with teeth, tongue, and saliva which moistens

-Chemical digestion with amylase starting to digest carbohydrates

Question 3

Esophagus:

Answer 3

The bolus is moved to the stomach using peristalsis, a contraction of muscles

Question 4

Stomach:

Answer 4

-Mechanical digestion with contraction of stomach muscles

-Sends chyme to small intestine

Question 5

Small Intestine:

Answer 5

• Nutrient absorption
  -The small intestine is coated with villi which increase surface area and absorb nutrients
• What remains is water, and cellulose (think corn on the cob) and other indigestibles

Question 6

large intestine:

Answer 6

reabsorption of water