NCERT/Class 11/Biology/Chemical Coordination and Integration

Chemical Coordination and Integration

Class 11 · Biology

112 questions47 easy50 medium15 hard

Sample Questions

Q1.During a stressful situation, the adrenal medulla releases catecholamines that stimulate glycogen breakdown. Which other adrenal hormone also affects carbohydrate metabolism but through gluconeogenesis?

  • AAldosterone
  • BCortisol
  • CMelatonin
  • DThyroxine

Q2.Cholecystokinin (CCK) acts on:

  • AOnly the pancreas
  • BOnly the gall bladder
  • CBoth pancreas and gall bladder
  • DThe stomach only

Q3.TCT and PTH work together to maintain calcium homeostasis. TCT reduces blood calcium while PTH increases it. If both hormones were deficient, what would be the net effect on calcium regulation?

  • ABlood calcium would remain perfectly normal
  • BBlood calcium would only increase
  • CBlood calcium regulation would be impaired, with inability to correct both high and low calcium
  • DBlood calcium would only decrease

Q4.Which hormone is secreted by the pars intermedia of the pituitary gland?

  • AGrowth hormone
  • BProlactin
  • CMelanocyte stimulating hormone (MSH)
  • DOxytocin

Q5.Thymosins provide immunity by promoting:

  • AOnly cell-mediated immunity through T-lymphocytes
  • BOnly humoral immunity through antibody production
  • CBoth cell-mediated immunity (T-lymphocytes) and humoral immunity (antibody production)
  • DNeither cell-mediated nor humoral immunity

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Adrenal Gland - CortexAdrenal Gland - MedullaEndocrine Glands and HormonesHormonal DisordersHormones of Heart, Kidney and GI TractHypothalamusMechanism of Hormone ActionOvary - Estrogen and ProgesteronePancreas - Endocrine FunctionParathyroid GlandPineal GlandPituitary GlandTestis and AndrogensThymus GlandThyroid Gland

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