NCERT/Class 11/Biology/Body Fluids and Circulation

Body Fluids and Circulation

Class 11 · Biology

106 questions50 easy43 medium13 hard

Sample Questions

Q1.Which neural centre moderates cardiac function?

  • ACerebrum
  • BCerebellum
  • CMedulla oblongata
  • DHypothalamus

Q2.The coronary system of blood vessels is specifically for the circulation of blood to and from the:

  • ABrain
  • BLungs
  • CCardiac musculature
  • DKidneys

Q3.Which type of WBC secretes histamine, serotonin, and heparin?

  • ANeutrophils
  • BEosinophils
  • CBasophils
  • DMonocytes

Q4.During ventricular systole, which valves close and which valves open?

  • ATricuspid and bicuspid close; semilunar valves open
  • BSemilunar valves close; tricuspid and bicuspid open
  • CAll valves close simultaneously
  • DAll valves open simultaneously

Q5.RBCs of most mammals are biconcave and enucleated. What advantage does the biconcave shape provide?

  • AIt allows RBCs to divide more easily
  • BIt increases surface area for efficient gas exchange
  • CIt helps RBCs produce antibodies
  • DIt allows RBCs to store nutrients

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

ABO Blood GroupingBlood Composition and PlasmaCardiac CycleCardiac Output and Stroke VolumeCirculatory Pathways - Open and ClosedCoagulation of BloodDisorders of Circulatory SystemDouble CirculationElectrocardiogram (ECG)Formed Elements - PlateletsFormed Elements - RBCsFormed Elements - WBCsHeart Chambers across VertebratesHuman Heart StructureLymph and Tissue FluidRegulation of Cardiac ActivityRh Grouping and Erythroblastosis Foetalis

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