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What is digestion?
The process of breaking food into smaller substances the bod
The removal of waste from the body
The storage of food in the stomach
The movement of food around the body
Which organ is digestion started in?
Oesophagus
Small intestine
Stomach
Mouth
What does saliva help to do?
Absorb nutrients
Remove waste
Soften food and begin digestion
Kill all bacteria in food
Which tube carries food from the mouth to the stomach
Lung
Intestine
Oesophagus
Anus
What is the main function of the stomach?
To mix food with acid and digest it
To remove waste
To absorb water
Where are most nutrients absorbed into the blood?
Large intestine
Small intestine
Stomach
Oesophagus
Which organ absorbs most of the water from undigested food?
Large intestine
Small intestine
Stomach
Through which part does waste leave the body?
Anus
Small intestine
Oesophagus
Stomach
Which part comes immediately after the stomach?
Anus
Large intestine
Oesophagus
Small intestine
What happens in the mouth?
Waste leaves the body
Nutrients are absorbed
Water is absorbed
Food is chewed and mixed with saliva
What happens in the oesophagus?
Food is pushed to the stomach
Food is digested by acid
Nutrients are absorbed
Waste is stored
What happens in the stomach?
Waste leaves the body
Food is chewed
Water is absorbed
Food is mixed with acid and enzymes
What happens in the small intestine?
Nutrients are absorbed into the blood
Food is swallowed
Waste is removed
What happens in the large intestine?
Acid digests food
Food is chewed
Water is absorbed from undigested food
Nutrients are absorbed
What happens at the anus?
Water is absorbed
Food is digested
Waste leaves the body
Nutrients enter the blood
Why do we need food?
To be sick
To get energy and nutrients for growth and repair
To germinate
