Class XI

Nature of most intestinal enzymes is
  1. Acidic
  2. Alkaline
  3. Water based
  4. Mineral based
Fungi paly a role as decomposers through enzyme
  1. Protease
  2. Lactase
  3. ADH
  4. Insulin
Ability of red blood cells (RBCs) to carry oxygen (O2) is reduced due to
  1. Salicylic acid in lungs
  2. Carboxy acids
  3. Carbon monoxide
  4. Distortion in hemoglobin structure
Higher BOD
  1. Lower water pollution
  2. Lesser bacteria in it
  3. More water pollution
  4. More air pollution
Cornified layer is thickest in
  1. Scalp of head
  2. Soles of feet
  3. Palm of hands
  4. Both B and C
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