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Digestive system and enzymes (Organs (Stomach (Makes enzymes that break…
Digestive system and enzymes
Organs
Stomach
Makes enzymes that break down protein
kills bacteria in food
churns food to help acid break it down
Small intestine
Releases digestive enzymes
absorbes food molecules
Large intestine
Water is absorbed
faeces is produced from waste
Liver
Creates bile
bile breaks down fats
bile neutralises stomach acid
Pancreas
Makes digestive enzymes to break down protein, fats and carbohydrates
releases enzymes into small intestine
Mouth / Oesophagus
Releases enzymes in saliva
physically breaks down food
transports food to stomach
Factors that affect enzymes
Enzymes are made from proteins
Enzymes are described as being biological catalysts
They speed up chemical reactions inside cells
Without enzymes living things would die as their metabolism would be too slow
Digestive enzymes