B1 Biology

B1 Biology

B1(A)- Health+fitness
1. Health
  1. Being free from disease
2. Fitness
  1. The ability to do physical activity
3. B.P.M
  1. Beats Per Minute
  2. Increased physical activity gives you a higher amount of B.P.M
4. Blood pressure
  1. Systolic
    1. The highest pressure that the arteries are under during a heart beat cycle
  2. Diastolic
    1. The lowest amount of pressure that the arteries are under during a heart beat cycle
5. Energy
  1. Energy is accessed through the consumption of food
  2. Oxygen+glucose=water+carbon dioxide and energy
B1(B)-Human health+diet
1. The seven food groups
  1. Carbohydrates
    1. Energy
    2. Bread
    3. rice
    4. Made up of simple sugars
      1. Stored as glycogen in the liver, or converted to fat
  2. Proteins
    1. Growth and repair
    2. Red meats
    3. Made up of amino acids
      1. It is not stored
  3. Fats
    1. Energy storage
    2. Sugary food
    3. Made of fatty acids and glycerol
      1. Stored under the skin, around organs as adipose tissue
  4. Water
    1. hydrates your body
  5. Minerals
    1. For the Haemaglobin
    2. iron
    3. Spinach
  6. Vitamins
    1. Prevents scurvy
    2. Citrus fruits
  7. Fibre
    1. Healthy bowel movements
    2. Pasta
2. E.A.R
  1. Estimated Average Requirement
    1. Your body weight*0.6
    2. Your estimated daily amount of protein needed
3. B.M.I
  1. Body Mass Index
  2. Your weight (kg) divided by your height in Meters
B1(C)-Staying healthy
1. Infectious diseases
  1. Spread through pathogens
    1. Pathogens can be Bacteria, Fungi or Viruses
      1. Fungi can cause athletes foot
      2. Viruses can cause flu
      3. Bacteria can cause cholera
    2. Pathogens are harmful microorganisms that can spread disease
    3. Pathogens enter the body through the mouth,nose and cuts on the skin
  2. Malaria
    1. Spread by vectors in this his case mosquitos
      1. The parasite feeds on red blood cells
    2. Vectors feed on hosts and pass on the pathogens
    3. Mosquitos can be repelled by using special sprays. Mosquito tablets get into your blood stream and stops them from biting
2. Non infectious diseases
  1. Cancer
    1. Tumors
      1. Tumors that grow in one place are called benign tumors
      2. Tumors that break into secondary tumors are called malignant tumors
      3. Mutations within the body
    2. When a tumor becomes malignant there is not much chance of the persons survival
  2. Genetic disorders or illnesses
sense organs
1. skin
  1. hairs and nerves on and under the skin are stimulated through pressure
2. nose
  1. stimulated by the chemicals in the air
3. tounge
  1. stimulated by the chemicals in our food
4. ear
  1. detects vibrations from the air which allows us to hear
5. eye
  1. Regulates light entering the eye which allows us to see

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	Created by holycheese2001 over 9 years ago