Biology

Hishaam Khan
Mind Map by Hishaam Khan, updated more than 1 year ago
Hishaam Khan
Created by Hishaam Khan over 5 years ago
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For The Year 8 End Of Year Test.

Resource summary

Biology
  1. Enzymes
    1. Enzymes are biological catalysts. There are optimum temperatures and pH values at which their activity is greatest. Enzymes are also proteins, and usually denatured above about 45ºC.
      1. They are also proteins that are folded into complex shapes that allow smaller molecules to fit into them. The place where these substrate molecules fit is called the active site.
      2. Enzymes are important in respiration. Aerobic respiration releases energy from glucose.
        1. Protease
          1. Breaks Down Protein
            1. Amino Acids
          2. Amylase
            1. Breaks Down Starch
              1. Sugars
            2. Lipase
              1. Stomach
                1. Pancreas
                  1. Mouth
                    1. Breaks Down Fats and Absorbs in Small Intestine
                      1. Fatty Acids
                  2. Carbohydrase
                    1. Breaks Down Carbohydrates
                      1. Simple Sugars
                  3. Photosynthesis
                    1. Animals need to eat food to get their energy. But green plants and algae do not. Instead they make their own food in a process called photosynthesis. Almost all life on Earth depends upon this process. Photosynthesis is also important in maintaining the levels of oxygen and carbon dioxide in the atmosphere.
                      1. These are the things that plants need for photosynthesis: carbon dioxide, water, light (a source of energy)
                        1. These are the things that plants make by photosynthesis: glucose oxygen
                        2. Carbon Dioxide + Water ---> Glucose + Oxygen
                        3. Disease & Immunity
                          1. When you are infected by a microbe, it takes time for your body to start fighting the infection. It does this by making enough white blood cells with the correct antibody. During this time, you continue to feel unwell.
                            1. After a second infection by the same microbe, your body makes the correct antibodies much faster, because of the white blood cells that remain from when you had the first infection. The microbe doesn't get a chance to make you ill this time, and we say that you are immune to the microbe and the disease it causes.
                            2. You begin to recover when enough antibodies have been produced. After the microbes have been killed, the amount of antibodies goes down again. But some of the white blood cells that produce the correct antibody remain in your blood.
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