b2 Revision

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  • B2 Revision
    • cells
      • all have neucleas
        • except red blood cells
        • bacteria cells
          • no nucleus
          • chromosomes control the cells
            • reproduction
      • all have membrane
      • plants have cell walls
      • bacteria cells
        • no nucleus
        • chromosomes control the cells
          • reproduction
    • DNA
      • double helix
      • Adenine-Thymine
      • Guanine-Cytosine
      • Building Blocks of life
    • Protein Structure
      • DNA
        • double helix
        • Adenine-Thymine
        • Guanine-Cytosine
        • Building Blocks of life
      • Enzymes
        • catalysts produced by living things
        • different chemical reactions happening all the time
        • easy catalyst caused by heat rising
          • catalysts produced by living things
        • what works with internal reactions
          • protease-protein
            • Amylase -breaks down starch
            • have different shapes to they can catalyse reactions easier
              • enzyme controlled reaction
                • heat has to be right otherwise
                  • if to cold it wont work properly
                  • if its to warm the enzyme will break apart and will die
          • Enzymes
            • different chemical reactions happening all the time
            • easy catalyst caused by heat rising
              • what works with internal reactions
                • protease-protein
                  • Amylase -breaks down starch
                  • have different shapes to they can catalyse reactions easier
                    • enzyme controlled reaction
                      • heat has to be right otherwise
                        • if to cold it wont work properly
                        • if its to warm the enzyme will break apart and will die
                  • cloning
                    • produces clones that are genetically identical --> jango fett/boba fett
                    • neucleus is taken from an adult cell containing the full number of chromosomes
                    • the neucleas is  then entered into an egg cell of a female of that specias which is devoid of its egg
                    • the egg cell then is electrically stimulated thus brining it to life(Frankenstein)
                    • when it grows into a bundle of cells its reimplanted into the womb of the female and grows like a normal child
                  • excersise and respiration
                    • breath more when ecersising
                    • cardiac output =HR*Stroke volume
                  • Photosynthisis
                    • plants making their own food
                    • it happens in all green plants
                    • leaves are full of stomata
                    • carbon dioxide +water --> glucose+oxygen
                    • the rate of photosynthesis
                      • light needs to be right
                      • the amount of carbon dioxide has to be right
                      • the peak tepreature has to be around 40 degreees centegrade

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