Enzymes

Description

Biology Mind Map on Enzymes, created by Shravani Chingre on 05/12/2017.
Shravani Chingre
Mind Map by Shravani Chingre, updated more than 1 year ago
Shravani Chingre
Created by Shravani Chingre over 6 years ago
27
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Resource summary

Enzymes
  1. Define the term catalyst
    1. substance that increases the rate of a chemical reaction and is not changed by the reaction
    2. Define enzymes
      1. proteins that function as biological catalysts
      2. Describe why enzymes are important in all living organisms in terms of reaction speed necessary to sustain life
        1. They speed up the rate reaction and is necessary to digest complex (carbohydrates)
        2. Describe enzyme action with reference to the complementary shape of an enzyme and its substrate and the formation of a product
          1. Enzyme joins together with the substrate to form a substrate complex which helps with digesting food. The substrate joins which the enzyme through the chemical reaction that takes place in the active site of the Enzyme. The Enzyme has such a structure that if it denatures than the substrate won't fit the Enzyme just like lock and key. The Enzyme will denature if not given the right temperature and ph
          2. Investigate and describe the effect of changes in temperature and pH on enzyme activity
            1. if the tempetrature is above the optimal 37.C or the ph is is not optimal for the enzyme then the Enzyme will denature
            2. Explain enzyme action with reference to the active site, enzyme-substrate complex, substrate and product
              1. The enzyme is formed when the substrate joins with the enzyme by a chemical reaction which takes place in the active site of the enzyme. They join together to make the product called the enzyme-substrate complex
              2. Explain the specificity of enzymes in terms of the complementary shape and fit of the active site with the substrate
                1. The Enzyme has such a structure that if it denatures than the substrate won't fit the Enzyme just like lock and key.
                2. Explain the effect of changes in temperature on enzyme activity in terms of kinetic energy, shape and fit, frequency of effective collisions and denaturation
                  1. There is less enzyme activity when the temperature is too small or too high. An Enzyme works best at its optimal temperature which is normally 37C. If the temperature is not kept optimal the enzyme will denature and lose its shape, unable to form anything as the substrate will not be able to combine together with Enzyme to form an Enzyme substrate complex
                  2. Explain the effect of changes in pH on enzyme activity in terms of shape and fit and denaturation
                    1. Every Enzyme has its own optimal Ph levels of working, if these Enzymes are not kept at there optimal temperature the enzyme will denature(lose its shape) can therefore unable to give a product by combining with the substrate
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