science quiz

Why does absorption not happen in the stomach?

• the food is over digested

• the stomach walls are lined with mucus to protect them from stomach acid, the food cannot get through the thick layer

• there is no blood flow to the stomach

• the fiber will be absorbed in the stomach

Match the following

• chewing

• breaking food into smaller simpler molecules

• starch turn to sugar

• chemical digestion

• breaking food into smaller pieces

• mechanical digestion

• chemical digestion

• mechanical digestion

where will most digestion happen?

• mouth

• stomach

• small intestine

• large intestine

Where will absorption happen

• mouth

• small intestine

• large intestine

• both the small and large intestine

Absorption is the passage of nutrients in only one direction to push food through the digestive system

• true

• false

Peristalsis is the passage of nutrients and water through the walls of the small intestines

• true

• false

There are the finger-like projections in the wall of the small intestine where nutrients are absorbed into the blood stream.

• villi

• chyme

• calorie

• aleoli