enzymes

• enzymes: biological catalysts that speed up chemical reactions in living organisms
• catalysts: substances that speed up a chemical reaction without being used up in the reaction
• Enzymes are made from living organisms
• Enzymes are large protiens made up of a string of amino acids
• The active site is where substrate molecules bind to an enzyme
• Active sites have a specific shape which allows them to fit only one type of substrate molecule
• An enzyme's shape can be changed by temperature, pH or pressure - this changes its activity
• substrate: a molecule that is used to make a product in a chemical reaction
• catalyst: a substance that increases the rate of a chemical reaction without being affected itself
• enzyme: a biological catalyst
• active site: the part of an enzyme that fits around the substrate
• lock-and-key model: the idea that the active site on an enzyme has a fixed shape that matches exactly with the substrate
• induced-fit model: the idea that the active site on an enzyme changes slightly when it comes into contact with the substrate
• active site is complementary to the substrates
• denatured: when a protein loses its shape and function due to heat or chemicals
• when a enzyme is denatured, the active site changes shape and the substrate cannot bind
• optimum temperature: the temp when the rate of reaction is highest
• Enzymes are made from living organisms

  Enzymes are produced by living organisms, such as cells, bacteria, and yeast. These organisms encode the genes that dictate the sequence of amino acids that make up an enzyme. The production of enzymes is a biological process that occurs naturally, and enzymes are not artificial or synthetic compounds.
• Enzymes


  Biological molecules that catalyze specific chemical reactions in living organisms. They speed up chemical reactions, making them more efficient and faster. Enzymes are highly specific, meaning they only work with specific substrates.