enzyme molecules

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    • #457
      gabriella
      Participant

      haya can anyone tell me the structure of enzyme and their role

      please!!!!! 😀 [/b]

    • #19992
      Dr_Genius_EGY
      Participant

      Enzymes are proteinic in structure and have catalytic functions

    • #19998
      Poison
      Participant

      yes, thats right. Enzymes are proteins in structure. They are organic catalysts. Catalysts make the reactions faster, and are not wasted during the reaction.

    • #20022
      Jelanen
      Participant

      Enzymes can be either protein (usually) or RNA. Enzymes reduce the energy cost of a reaction. While this may seem to “speed up” the reaction, that is actually a side effect of their true work in reducing the energy needed to drive the reaction in the direction you want it to go. Enzymes are organic catalysts in that they are not altered or destroyed in the process of reducing the required energy.

      -Jelanen

    • #20383
      MrMistery
      Participant

      true, Jelanen, enzymes can be both proteic or RNA. The most common ones are proteins so in many bio books(like mine 😕 😕 ) RNA enzymes aren’t even mentioned. They are part of a cathegory we call biocatalysts along with hormons and vitamins. From what I know, enzymes function by reducing the activation energy of a reaction, and what everyone else said seems to confirm that. Almost every chemicall reaction inside the body has an enzyme “helping it out” 😀
      Regards,
      Andrew

    • #20421
      thank.darwin
      Participant
      quote gabriella:

      haya can anyone tell me the structure of enzyme and their role [/b]

      Enzymes may also be inhibited by non competitive inhibitors and competitive inhibitors… non competitive inhibitors don’t block the active site of an enzyme… competitive inhibitors block the active site from others. There is also feed back inhibition… do you want to know more… I can type more here…?

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