Class X

Seed germination in plants is controlled through
  1. Gibberellins
  2. Auxins
  3. Abscisic acid
  4. All of above
 Shortage of water is controlled through
  1. Gibberellins
  2. Auxins
  3. Abscisic acid
  4. All of above
Most modern hypothesis about enzyme action is called
  1. Lock and key hypothesis
  2. Induced fit hypothesis
  3. Enzyme substrate hypothesis
  4. Lock and substrate hypothesis
Which statement is incorrect?
  1. Urea is a large molecule
  2. Urea can diffuse easily through cell membranes
  3. Transportation of urea does not require mitochondria
  4. About half of urea is reabsorbed in filtrate
People who are infected with, likely to live their whole life
  1. Acquired Immune Deficiency Syndrome (AIDS)
  2. HIV
  3. Lungs cancer
  4. All of above
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