OCR Biology B1- Health

Half of what is covered in Biology Unit 1.

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  • Created by: LJas
  • Created on: 23-10-15 19:27
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  • B1- Health
    • Blood Pressure
      • Normal Pressure = systolic/diastolic
      • How strong blood is pumped in and out of the heart
      • Pressure blood pushes on blood vessel sides
      • Capillaries have very thin walls
    • Heart Disease
      • Cholesterol
        • Salt
          • Causes you to hold more water -> dilutes blood flow
        • Carbon Monoxide
          • Red Blood Cells have a greater affinity for CO than for O^2
          • Smoking
            • Nicotine narrows arteries
    • Malaria
      • Infected Female Moquitos
        • Lands and sucks the hosts's bloods
          • Reproduces in liver
            • Blood stream
              • Cell bursts
          • Parasite
    • Defences
      • White blood cells produce antibodies
        • Attach to pathogens
          • Then allow WBCs to locate and DESTROY
        • Antibodies= a protein specificity
    • High Blood Pressure
      • Age
      • Genetics
      • Weight
      • Lots of Salt
      • Lots of alcohol
      • Drugs
      • Stress
      • Lack of exercise
    • Healthy Diet
      • EAR
        • in g = 0.6 x body mass
        • Estimated Average daily Requirement of Protein
      • BMI
        • Mass/ (Height)^2
      • suger -> fat -> protein
    • Smoking
      • CO
      • Nicotine
      • Tar
        • Solidifies in alveolus
          • Builds up
            • = less Surface Area = less diffusion = less o2
      • CO2
      • Carcinogens
    • Alcohol
      • Depressant
      • Brain damage
      • inflamitory of gullet
      • Liver
        • inflames
        • fatty
        • cirrhosis
    • Sugar Levels
      • Diabetes
        • TYPE 1
          • Not enough insulin is produced
        • TYPE 2
          • Too much insulin
      • Glucose
        • insulin
          • in the pancreas
          • -> glycogen -> liver
        • fats

Comments

taqinisa

This is not part of B1, It is part of B7 but good resource

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