Digestion Review Sheet

Question 1

What is the role of the mouth?

Answer 1

To help you chew and the salivary glands help to moisten the food so that it can move more easily through the esophagus into the stomach.

Question 2

What is the role of esophagus?

Answer 2

Transports food entering the mouth through the throat into the stomach.

Question 3

What is the role of the stomach?

Answer 3

Holds the food and mixes it with acid and enzymes that continue to break down the food into a paste or liquid.

Question 4

What is the role of pancreas?

Answer 4

It makes pancreatic juices called enzymes which break down sugars, fats and starches.

Question 5

What is the role of the liver?

Answer 5

1. Makes and secretes bile.
2. To process and purify the blood containing newly absorbed nutrients that come from the small intestines.

Question 6

What is the role of the gallbladder?

Answer 6

Stores bile that’s produced by our liver to help us digest fats, so when we eat, the gallbladders thin muscular lining squeezes the bile into the small intestine through the main bile duct.

Question 7

What is the role of the small intestine?

Answer 7

Helps to break down food, absorb nutrients that our body needs and to get rid of unnecessary things.
it also makes sure that no harmful bacterias enter the body

Question 8

What is the role of the large intestine?

Answer 8

Absorbs water and salt from the material that has not been digested as food and gets rid of any leftover waste products.

Question 9

What is the role of the rectum?

Answer 9

Receives stool from the colon and signals the brain weather or not that waste should leave the body yet.

Question 10

What is the role of the anus?

Answer 10

When the waste from your body is leaving either as liquid waste or solid waste.

Question 11

What are the lengths of the the esophagus, small and large intestine?

Answer 11

E- 25 CM
SI- 25 FT
LI- 5 FT

Question 12

What is bile and where is it stored/produced?

Answer 12

A fluid made and released by the liver and it’s stored in the gallbladder. It helps in digestion and breaks down fats.

Question 13

What is an accessory organ in digestion?

Answer 13

Liver, gallbladder and pancreas. Food doesn’t pass through these 3 organs as they contain bile duct.

Question 14

Where does absorption of the most nutrients occur?

Answer 14

Small intestine, little villi suck in the nutrients where our body needs it.

Question 15

How long does it take in general to digest carbohydrates, proteins and fats?

Answer 15

C- 1-2 hours
P- 3-5 hours
F- 7-9 hours

Question 16

The name of 2 digestive enzymes.

Answer 16

Pepsin and Renin.

Question 17

What is peristalsis?

Answer 17

Muscles that contract to push food to the stomach gently but slowly.

Question 18

What is the role of saliva in digestion? Why is it important?

Answer 18

It moistens the food so that it’s easier to go down and starts to break down carbohydrates. It’s important because it helps the food we eat digest.

Question 19

What is chyme?

Answer 19

Located in the STOMACH.
The food that you eat get mixed around in the stomach by their walls

Question 20

What are villi?

Answer 20

Located in the SMALL INTESTINE.
Absorbs nutrients, vitamins and minerals that we need.

Question 21

What is the importance of fibre in a healthy digestive tract?

Answer 21

Helps to push food through the digestive tract and helps us to use bathroom properly/regularly and help to bulk up foods.

Question 22

What does normal faces look like?

Answer 22

Medium brown.

Question 23

How can you tell if your digestive tract isn’t functioning properly?

Answer 23

If you use the bathroom right after eating, not regularly or constipated.

Question 24

What is poop made of?

Answer 24

3/4 Water
1/4 dead bacteria
Fiber, fats, inorganic material, dead cell, live bacteria, mucus and protein.

Question 25

Why does poop stink?

Answer 25

Inorganic gas hydrogen sulfide and it’s the same compounds that gives fart their odors.

Question 26

Why is poop brown?

Answer 26

Iron in its waste product bilirubin gives rise to its brown colour.

Question 27

What other colours of poop are possible?

Answer 27

pale or yellow brown
Green( people who eat healthy can have this colour)
red or black(internal injuries)

Question 28

Can you get sick from eating poop?

Answer 28

It can be spread through deliberate or accidental ingestion of poop that can cause you to be sick by food poisoning.

Question 29

why causes diarrhea?

Answer 29

Irritation in the intestines, infection by bacteria/viruses, unfamiliar foods, food allergies and chronic illness.

Question 30

How come when you eat corn, you poop it out in whole kernels?

Answer 30

The outer yellow coating is made out of cellulose and indigestible so it passed through the gut untouched.

Question 31

How does poop stay together?

Answer 31

We pinch of lengths of it with the anal sphincter.

Question 32

Why does some poop float?

Answer 32

High gas or high fat content foods have been eaten.

Question 33

What causes the burning sensation with poop?

Answer 33

Oils associated with hot foods or spices remain intact and active all the way through ones gastrointestinal system.

Question 34

Does eating meat make your poop smell worse?

Answer 34

Yes because meat protein is rich in sulfides.

Question 35

What shape is healthy poop?

Answer 35

snake-like

Question 36

What consistency is healthy poop?

Answer 36

soft and smooth and may be some cracks.

Question 37

what colour is healthy poop?

Answer 37

medium brown