B3 Flashcards 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: will mustonCreated on: 23-01-20 22:05 What is larger: an organ or a tissue? An organ 1 of 15 Name the organ system controlling breathing and heart rate. Respiratory system 2 of 15 What is the role of the small intestine? To help digest food and absorb minerals. 3 of 15 Name 3 organs that make up the digestive system. Mouth,gullet,diaphragm,liver,gall bladder,duodenum,bile duct,small intestine, large intestine, appendix, stomach, pancreas,rectum,anus. 4 of 15 What is the chemical formula for glucose? C6H12O6.. 5 of 15 What enzyme breaks down protein? Protease. 6 of 15 What does a catalyst do? Speed a reaction up. 7 of 15 What is the "key" in the lock and key theory? The substrate. 8 of 15 What is the optimum temp for enzymes? 37 degrees. 9 of 15 What is the optimum pH for stomach enzymes? About 1.5 10 of 15 What are lipids broken down into? Fatty acids and glycerol. 11 of 15 What happens to food molecules when they are fully digested? They enter the bloodstream. 12 of 15 What is the role of amylase? It is a catalyst that helps with the digestion of carbohydrates. 13 of 15 How does the body use bile? It is squirted onto the food to change its pH> 14 of 15 How does the body increase the surface area of food? Bile emulsifies the food, breaking it into smaller parts. 15 of 15
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