CBSE  /  Class 11  /  Biology  /  Body Fluids and Circulation

  • 1. 
    In developing embryo RBCs are formed in

  • Lymph node
  • Bone marrow
  • Liver
  • Spleen

  • 2. 
    In humans, blood passes from the post caval to the diastolic right atrium of heart due to:

  • Pressure difference between the post caval and atrium
  • Pushing open of the venous valves
  • Suction pull
  • Stimulation of the sino auricular node

  • 3. 
    When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release

  • Fibrinogen
  • Thrombin
  • Prothrombin
  • Thromboplastin

  • 4. 
    An adult human has systolic and diastolic pressures as:

  • 80 mm Hg and 120 mm Hg
  • 120 mm Hg and 80 mm Hg
  • 50 mm Hg and 80 mm Hg
  • 80 mm Hg and 80 mm Hg

  • 5. 
    Duration of cardiac cycle is

  • 0. 7 sec
  • 0. 9 sec
  • 0. 8 sec
  • 0. 11 sec

  • 6. 
    In the above picture Q represents

  • exitation of the atria
  • depolarisation of ventricles
  • begining of systole
  • repolarisation

  • 7. 
    Oxygenated blood occurs in

  • Pulmonary artery
  • Right atrium
  • Right ventricle
  • Pulmonary vein

  • 8. 
    The cells lining the blood vessels belong to the category of

  • Columnar epithelium
  • Connective tissue
  • Smooth muscle tissue
  • Squamous epithelium

  • 9. 
    Heart failure occurs due to

  • heart stops beating
  • damage of heart muscles
  • congestion of lungs
  • all of the above

  • 10. 
    Artificial pace maker is transplanted in

  • Inter auricular septum
  • Below the collar bone
  • Inter ventricular septum
  • Right auricle
Report Question
warning
Practice More On Body Fluids and Circulation
Quiz 1 Quiz 2
access_time
  Time