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Year 7 KO A2a

Knowledge Organiser Key term Autumn 2 Digestion

TermDefinition
Balanced Diet Eating food containing the right nutrients in the correct amounts.
Bile Substance that breaks fat into small droplets.
Carbohydrase Enzyme that breaks down carbohydrates into sugar molecules.
Carbohydrates Nutrients that provide the body’s main source of energy. There are two types; simple (sugars) and complex (starch).
Deficiency A lack of minerals that causes poor growth.
Dietary fibre Parts of plants and animals that cannot be digestion. It helps the body to eliminate waste by providing bulk to keep food moving through the digestive system.
Digestion Process in which large molecules are broken down into small molecules.
Digestive system Group of organs that work together to break down food.
Enzymes Substances that speed up the chemical reactions (biological catalysts) of digestion resulting in large molecules being broken into small molecules.
Food tests Chemical test to detect the presence of particular nutrients in food.
Gut bacteria Microorganisms that naturally live in the intestine and help food break down.
Lipase Enzyme that breaks down lipids into fatty acids and glycerol.
Lipids Nutrients that provide a store of energy and insulate the body. Sources are butter, milk, nuts.
Minerals Essential nutrients needed in small amounts to keep you healthy. Sources are fruit and vegetables.
Nutrients Essential substance that your body needs to survive, provided by food.
Obese Extremely overweight.
Protease Enzyme that breaks down protein into amino acids.
Proteins Nutrient your body uses to build new tissue for growth and repair. Sources are meat, fish, eggs.
Starvation Extreme case of not eating enough food.
Vitamins Essential nutrients needed in small amounts to keep you healthy. Sources are fruit and vegetables.
Created by: Windypicks
 

 



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