Class IX

While cutting big molecules to smaller molecules, enzymes may be called as
  1. molecular knife
  2. molecular lancet
  3. molecular fork
  4. molecular scissors
To hydrolyze Tristearin, enzyme used is
  1. sucrose
  2. lipase
  3. maltase
  4. amylase
Chronic Obstructive lung disease occurs due to
  1. Chronic Obstructive lung disease occurs due to
  2. depressant drugs
  3. amphetamines
  4. cocaine
Cuticular respiration is important to
  1. reduce stomatal respiration
  2. continue transpiration pull
  3. in night
  4. help plant survive heat
Tears are spread over eyeball with help of
  1. eyelids
  2. rectus muscles
  3. eyelids
  4. cornea
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