My Digestive System

HOW DOES THE FOOD YOU EAT GET USED WITHIN THE BODY?

What is Food Made Up of?

• Carbohydrates

• Fats

• Proteins

• Vitamins

•Minerals

A Step by Step Guide Through the Body

First stage of the process

mouth

Chewing mixes food with saliva

The enzymes in saliva cause

carbohydrate breakdown

Salivary glands

teeth

Salivary glands

tongue

oesophagusLong hollow tube

Carries food, liquid and saliva from the

mouth to the stomach

stomachMuscular hollow bag

Uses acid and enzymes to

breakdown food to allow entry into the

small intestine

Small intestine

Very long folded up tube

Mixes food with enzymes to finish

digestion

Is the area where nutrients

are absorbed

liver

Produces and secrets bile

Bile travels to the small intestine to

help with the breakdown of fat

Is the site of excess glucose

storage

pancreas

Long flat organ behind the stomach

Produces both hormones and enzymes to aid digestion and

absorption

Enzymes travel to the small intestine

Large intestineHome to micro-

organisms that make some

vitamins and amino acids

Is the area of water

absorption

rectumActs as a storage facility

Keeps the faeces until a time when it

can be removed

Found at the end of the

large intestine

Sugar • Why is it important?

• What happens if you don’t eat enough?

• What happens if you get too much?

Which drink has the least amount of sugar?

How much sugar is in this drink?We want to know how much is in 330ml

X grams in 100ml = grams in 330ml

X 0.1 = 0.33g