Enzyme by philip shen https://padlet.com/philipshenn/v84ifi1v4h54 en-us 2018-03-16 01:09:26 UTC 2024-10-13 07:33:27 UTC hello@padlet.com Active site hzha0064 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242643687
  • The active site of the enzyme is the part of the protein that interacts with the substrate.
  • The primary, secondary, tertiary structure will change the shape of active site.

    • ]]>     2018-03-16 01:15:05 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242643687     Metabolic reactions qwan0041 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242643992 1. Catabolic reaction 
     - break down large molecules into smaller ones
     - exergonic/ exothermic
     - release energy
    Eg. cellular respiration, burning 

    2. Anabolic reaction 
     - build up large molecules from smaller ones
     - endergonic/ endothermic 
     - absorb energy, use energy 
    Eg. photosynthesis, melting ice ]]>     2018-03-16 01:17:06 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242643992     Diagrams qwan0041 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242645197 2018-03-16 01:25:36 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242645197 Lock and Key Model hzha0064 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242645664 The lock and key model will not change the shape of active site. And the molecules will fit the AS and chemical change occurs.

    ]]>     2018-03-16 01:28:39 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242645664     Induced Fit hzha0064 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242646339 Because the shape of active site not always fit the molecule so the induced fit will fit the molecules.]]> 2018-03-16 01:33:37 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242646339 Basic function pzha0010 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242646361 Enzyme is a kind of biological catalysts which are required to speed up metabolic reaction. Enzymes are not used up in a reaction and can be reused.
    Most enzymes are proteins so the shape of the enzyme is important to the function of the enzyme. Enzymes are highly specific for a biological reaction and usually only catalyse one reaction or one type of reaction.  The reactant(s) are referred to as substrate(s)]]>     2018-03-16 01:33:45 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242646361     Factor that will affect enzyme reaction philipshenn https://padlet.com/philipshenn/v84ifi1v4h54/wish/242646463 ————————
    1. Temperature
          The temperature will affect the particle activity(kinetic energy) and cause more or less collision. It will affect the rate of reaction, the enzyme in human  body work best in temperature of 37. And too high temperature will denature the enzyme.

    2. pH value
        The pH value will also affect the rate of reaction, but it depends on enzyme itself that if it like acidic environment or alkaline environment. And the tolerance range is the favorite pH environment  of enzyme.

    3.inhibitor factors
        ]]>     2018-03-16 01:34:22 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242646463     How do enzyme increase the rate of reaction pzha0010 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242647426 Most chemical reactions proceed too slowly to products to be useful for cells.  An enzyme reduces the activation energy needed for a biochemical reaction to occur by bringing the substrates together in the correct orientation required for a reaction.  Therefore increasing the frequency of successful collisions and increasing the rate of reaction.]]> 2018-03-16 01:41:48 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242647426 Enzyme names pzha0010 https://padlet.com/philipshenn/v84ifi1v4h54/wish/242647649 Enzymes usually only catalyse one type of reaction.  Enzyme names end with the -ase suffix (unless they were named prior to this naming system). Often when enzymes are named, the -ase suffix is added to the substrate name.]]> 2018-03-16 01:43:37 UTC https://padlet.com/philipshenn/v84ifi1v4h54/wish/242647649