enzymes

• What is the lock and key model? 1. The enzymes active site is complementary to the substrate= bind together 2. Substrate gets broken down into products which are released 3. The enzyme does not get changed
• What is a catalyst? Substance which increases the speed of a reaction without being used up or changed in the reaction.
• How does catalysts speed up the rate of reaction? Raising the temp
• What are enzymes? Proteins that help speed up metabolism or chemical reactions in the body
• what happens in enzymes is too high?

  enzymes will denature and change shape so its no longer complementary to its active site
• What is pepsin in enzymes? Breaksdown proteins in the stomach= works best at pH2= acidic condition
• What are proteases? Digestive enzymes that breakdown proteins into amino acids
• Where is proteins digested? In the stomach by pepsin and in the small intestines by other proteases
• Where are proteases produced? In the stomach, pancreas and small intestines
• What are carbohydrases? Digestive enzymes that breakdown carbohydrates into simple sugars (e.g. maltose)
• What is starch? Glucose molecules joined together
• What is the role of amylase? Breaksdown starch into maltose(simple sugars)
• Where does amylase digest starch? In the mouth, small intestines produced in salivary glands, pancreas, small intestines
• What are lipeases? Digestive enzymes that breakdown lipid molecules into glycerol and fatty acids in the small intestines
• Where are lipease produced? Pancreas and small intestines
• Enzymes are made up of amino acids joined together by peptide bonds
• what happens when enzyme temp is too low?

  they will react very slowly or not at all