Why is a digestive system needed in humans?, Hear sounds, Break food down, Pump blood, What does digestion turn large food molecules into?, Bone cells, Blood clots, Small molecules, Which nutrient is mainly broken down by carbohydrases?, Carbohydrates, Vitamins, Fats, Proteins, What are proteins digested into?, Simple sugars, Amino acids, Fat droplets, Mineral salts, What are fats digested into?, Glycerol only, Fatty acids, Fatty acids and glycerol, Amino acids, Where does physical digestion begin?, Stomach, Anus, Rectum, Mouth, Which organ pushes food to the stomach?, Gullet, Rectum, Large intestine, Which organ churns food and releases gastric juice?, Stomach, Large intestine, Mouth, Small intestine, Where is most chemical digestion completed?, Small intestine, Rectum, Gullet, Mouth, What is absorbed mainly in the large intestine?, Carbon dioxide, Water, Oxygen, Which enzyme digests proteins?, Lipase, Amylase, Protease, What do proteases break proteins into?, Amino acids, Fatty acids, Mineral salts, Simple sugars, What do lipases break fats into?, Glycerol, Fatty acids and glycerol, Fatty acids, Amino acids, What are enzymes?, Blood cells, Waste products, Biological molecules, Mineral salts, Which organ contains carbohydrase in saliva?, Rectum, Large intestine, Stomach, Mouth, What does saliva do besides digestion?, Absorbs water, Softens food, Makes bile, What moves food towards the stomach?, Teeth enamel, Gullet muscles, Blood vessels, Which substance in gastric juice kills microorganisms?, Hydrochloric acid, Glycerol, Fibre, Insulin, Why does the stomach have mucus?, Makes enzymes, Stores saliva, Protects lining, Absorbs sugars, Where are fats digested?, Mouth, Small intestine, Large intestine, Gullet

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