Digestion Topic

Add iodine to starch Iodine is originally brown Then it should be blue black

Add Benedicts solution to sugar Benedicts is originally blue Then it should be brick red

Add Buiret solution to protein Buiret solution is usually colourless Then it should be lilac

Add ethanol and water to fat Ethanol and water is usually colourless Then it should be white emulsion

They keep you healthy Found in vegetables and fruit

They help your body work healthily Found in a bit of everything (in a balanced diet)

To keep the digestive system working properly Found in whole meal breads, cereal, fruit + veg

For vitamins to dissolve + for fat to protect organs Found in vegetables fats: soya, sunflower, olive oil OR Milk, butter, pork, egg

Needed for growth of muscles and repair of cells (eg. Skin) Found in fish + poultry, grains + pulses, peas + beans

Main source of energy Found in starch (bread, rice, pasta) AND sugars (cake, jam)

Keeps us alive, allows chemical reactions to take place. 70% of our body is made up of water. Most foods contain water (eg watermelon) but you could just drink water

Top - enamel Dentin Pulp cavity Crown Gum Jaw bone Root Nerves and blood vessels Bottom -

Flat Bites off parts of food

Sharp and pointy Rips food apart

Nearly a molar - smaller version Grinds food

Wide Grinds food and chewing

Saliva glands To the oesophagus To the liver To the stomach To the pancreas To the small intestine To the large intestine To the anus

Where saliva is made

Moves food from mouth to stomach

Produces bile (an alkaline fluid that aids digestion) and detoxifies stomach acid

Holds food and starts to break it down using a strong acid

Produces enzymes that work in the small intestine

Extracts nutrients + absorbs them into the booodstream

Absorbs water from undigested food leaving faeces