Biology

Biology

Diet
1. Carbohydrates
  1. Converts to mainly sugars
    1. Fuels cells
2. Protein
  1. Building block
    1. Bones
    2. Muscles
    3. Skin
    4. Blood
  2. Grows and repairs cells
3. Lipids
  1. Helps body absorb vitamins A, D and E
4. Vitamins
  1. Keeps the body running
5. Water
  1. Need it to survive
  2. 50 - 60% of bodies are water
  3. Need to replace 2.4 liters every day
6. Fibres
  1. Helps digestive system
Keeping healthy
1. Metabolic rate
  1. Speed of chemical reactions in our bodies
    1. How quickly food is used
  2. Males have a higher Metabolic mate
    1. Have more muscles
  3. Exercise
    1. Higher metabolic rate
      Annotations:
      - Higher metabolic rate if your exercise
How to measure energy in food
1. Burn food
  1. Burn the food until the temperature wont change
    1. The shortest time means it has more energy
Microbs
1. Pathogen
  1. A microorganism that causes diseases
2. Sammelwies
  1. Cured childbed fever
  2. Stopped many other pathogens
Antibiotics
1. Definitions
  1. Antibiotic
    1. Only kills bacterial cells
  2. Antibody
    1. A chemical produced by white blood cells to kill foreign cells
2. Antiseptic
  1. Kills all cells
Extention node
1. Edward jenner
  1. Info
    1. Stopped cowpox
    2. Lived in Berkeley
    3. Used cowpox to stop smallpox
  2. Cured smallpox by rubbling pus from cowbox on a boys arm over cuts
    1. The boy never got smallpox after being cured even after having some rubbed on his arm
  3. Vacinations
    1. Puts a weak pathogen in your body which the white blood cells cure and remember how to cure it in the future
    2. MMR jab prevents measles, mumps and rubella
2. Antibiotic resistance
  1. Medics can help lower resistant bacteria by using less antibiotics
  2. Pendemic
    1. More cases of diseases in more than one country
  3. Epidemic
    1. More cases of infection in one country
3. Nerves
  1. Receptor > Sensory neuron > C.N.S > Motor neuron > Effector
    1. Stimulus > Receptor > C.N.S > Effector > Effect
      1. Pick up hot thing > Heat receptor in hand > Spine > Muscle in hand > drop hot thing
        C.N.S = Spine or brain
        Effector = Muscle gland
4. Nerves and hormones
  1. Plants are sensitive to light (phototropism)
    1. Plants will always grow upwards towards the light
      1. Plant coordinated by the auxin
5. Drugs
  1. Medical
    1. Calpol
    2. Allergy pills
  2. Legal
    1. Antibiotics
    2. Legal steroids
    3. Antihistamine
  3. Illegal
    1. Heroine
    2. Cannabis
    3. Speed

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	Created by scott hawker over 8 years ago