Class IX

Purpose of vasomotor nerve is to
  1. control arterioles carrying blood to capillaries
  2. control proximal convoluted tubule
  3. control distal convoluted tubule
  4. control collecting tubule
Carboxyhaemoglobin is formed if
  1. CO2 is allowed to mix with hemoglobin
  2. if CO is allowed to react with hemoglobin
  3. if long term exposure to lead and lead poisoning occurs
  4. if carbon is allowed to react with hemoglobin
Prothrombin helps in
  1. fighting against diseases
  2. giving red color to blood
  3. giving red color to blood
  4. hormones regulations
An overactive thyroid gland may
  1. slow metabolic rate
  2. expedite metabolic rate
  3. may denature metabolic enzymes
  4. may increase pH from 7 to 9 approx.
Organic catalysts called enzymes are mainly made up of
  1. Carbohydrates
  2. fats
  3. Potassium
  4. Proteins
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