Enzymes

Description

NCEA Level 2 Biology (Gene Expression) Mind Map on Enzymes, created by elliemay96 on 23/09/2013.
elliemay96
Mind Map by elliemay96, updated more than 1 year ago
elliemay96
Created by elliemay96 about 11 years ago
48
0

Resource summary

Enzymes
  1. Are part of the protein group
    1. Proteins are made of amino acids
    2. Act as biological catalysts
      1. Control the speed of all chemical reactions in organisms
      2. Anabolism: Reactions that synthesise larger molecules from smaller ones
        1. Reactions that break down large molecules into small molecules
        2. Enzymes are specific
          1. One enzyme catalyses only one specific reaction
            1. They all have the ending 'ase'
          2. Lock-and-key model
            1. The shape of an enzyme in an area known as its active site corresponds to that of a substance it catalyses
            2. Factors that affect enzyme activity:
              1. Warmer temp= faster reaction. Can denature above 40 degrees.
                1. pH: optimum= 7. Can denature if too extreme
                2. Co-factors: many enzymes need another molecule to assist

                  Media attachments

                  Show full summary Hide full summary

                  Similar

                  Biological Definitions
                  Yamminnnn
                  Biology Unit 2 - DNA, meiosis, mitosis, cell cycle
                  DauntlessAlpha
                  BIOLOGY HL DEFINITIONS IB
                  Luisa Mandacaru
                  Key Biology Definitions/Terms
                  courtneypitt4119
                  IB Biology Topic 4 Genetics (SL)
                  R S
                  Plant and animal cells
                  Tyra Peters
                  OCR AS Biology
                  joshbrown3397
                  Biology AQA 3.1.3 Cells
                  evie.daines
                  Biology AQA 3.2.5 Mitosis
                  evie.daines
                  Biology AQA 3.1.3 Osmosis and Diffusion
                  evie.daines
                  Biology- Genes, Chromosomes and DNA
                  Laura Perry