The Digestive System

Question 0

The digestive system has 3 jobs…

Answer 0

1. Breaks down food into smaller molecules our cells can use
2. Absorbs food into our circulatory system (bloodstream)
3. Eliminates waste products

Question 1

Digestive system

Answer 1

Made up of all of the organs in our body in charge of breaking down food

Question 2

Food enters the digestive system where it is ———————

Answer 2

Broken down into simpler molecules that can move from the digestive system to the bloodstream

Question 3

The nutrients are then moved into the —— where it can be taken to the rest of the body to feed your body’s —–

Answer 3

Blood

Cells

Question 4

Mechanical digestion

Answer 4

The physical process of breaking food down into smaller pieces

Question 5

Chemical digestion

Answer 5

Process of changing food on a molecular level. This happens because of the action of the enzymes in your digestive system

Question 6

Step 1

Answer 6

• food is ingested (put into your mouth) and you chew

- chewing is a form of mechanical digestion

Question 7

Step 2

Answer 7

• chemical digestion now begins in your mouth

- saliva contains a digestive enzyme called amylase

Question 8

Step 3

Answer 8

• Once food is chewed, the food is swallowed

- the esophagus is the muscular tube that connects the mouth to the stomach

Question 9

Step 4

Answer 9

Food moves down the esophagus by peristalsis

Question 10

Step 5

Answer 10

• The stomach is a muscular pouch like structure in the digestive tract
• both mechanical and chemical digestion take place in the stomach

Question 11

Step 6

Answer 11

Food digestion is completed in the first half of the small intestine through mechanical and chemical digestion

Question 12

Pancreas

Answer 12

• Secretes insulin which breaks down sugar

- secretes bicarbonate, which neutralizes stomach acid

Question 13

Liver

Answer 13

Produces bile it break down fat

Question 14

Digested food moves through the rest of the small intestine and passes over thousands of —–

Answer 14

Villi

Question 15

Villi

Answer 15

Tiny, finger like projections that help absorb digested food into the blood

Question 16

Step 7

Answer 16

• Material that cannot be digested passes into the large intestine
• the walls of the large intestine absorb water and salts from the leftover waste

Question 17

Step 8

Answer 17

The left over waste product, called feces (poop), enters the rectum and is eliminated from our body through the anus