Digestive System

Your body obtains its raw materials from food by the process of ________________? 

• diffusion
• digestion
• respiration
• saliva

What is the liquid in your mouth called? 

• tongue
• esophagus
• saliva
• bile

Saliva contains chemicals that change starch into what? 

• sugar
• bile
• chyme
• bolus

Why do we need to break apart the food we eat? 

• so it can fit in our stomachs
• so our bodies can use the nutrients from food
• so liquids can be separated from solids
• So that our bodies' enzymes have something to do

Where does the process of digestion begin?

• mouth
• stomach
• large intestine
• small intestine

Tearing up the food with your teeth and chewing are examples of what kind of digestion?

• chemical
• mechanical
• dental
• peristalsis

What is the muscular tube called that connects your mouth to your stomach? 

• esophagus
• large intestine
• small intestine
• digestion

Gastric juices in the stomach help break down __________? 

• fruit
• water
• protein
• starch

What is chyme?

•  the name of a digestive enzyme
• What food is called after it has been digested by the stomach
• a chemical
• a part of the small intestine

Once the nutrients reach your small intestine they are absorbed into your ____________?

• blood vessels by the help of villi
• stomach
• small intestine
• The are not absorbed because our body does not need nutrients