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Body Fluids and Circulation NEET PYQs
Class XI Biology
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NCERT Based
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NEET Practice
📘 Concept Based
📝 Exam Level
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17 questions in this chapter
Match List-I with List-II.
List-I
List-II
(A)P-wave
(I)Beginning of systole
(B)Q-wave
(II)Repolarisation of ventricles
(C)QRS complex
(III)Depolarisation of atria
(D)T-wave
(IV)Depolarisation of ventricles
A A-I, B-II, C-III, D-IV B A-III, B-I, C-IV, D-II C A-IV, B-III, C-II, D-I D A-II, B-IV, C-I, D-III
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Which of the following statements are correct?
A A and B only B D and E only C C and E only D B and C only
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Given below are two statements:Statement I: The coagulum is formed of network of threads called thrombins.Statement II: Spleen is the graveyard of erythrocytes.
A Both Statement I and Statement II are
incorrect B Statement I is correct but Statement II is
incorrect C Statement I is incorrect but Statement II is
correct D Both Statement I and Statement II are correct
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Which one of the following statements is correct?
A The tricuspid and the bicuspid valves open due
to the pressure exerted by the simultaneous contraction of the atria B Blood moves freely from atrium to the ventricle
during joint diastole. C Increased ventricular pressure causes closing of
the semilunar valves. D The atrio-ventricular node (AVN) generates an
action potential to stimulate atrial contraction
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Which enzyme is responsible for the conversion of
inactive fibrinogens to fibrins?
A Thrombin B Renin C Epinephrine D Thrombokinase
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Persons with 'AB' blood group are called as
"Universal recipients". This is due to:
A Absence of antigens A and B on the surface of RBCs B Absence of antigens A and B in plasma C Presence of antibodies, anti-A and anti-B, on RBCs D Absence of antibodies, anti-A and anti-B, in plasma
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Match the following columns and select the
correct option.
Column-I
Column-II
(A)Eosinophils
(I)Immune response
(B)Basophils
(II)Phagocytosis
(C)Neutrophils
(III)Release histaminase, destructive
enzymes
(D)Lymphocytes
(IV)Release granules containing histamine
A (A)-(III), (B)-(IV), (C)-(II), (D)-(I) B (A)-(IV), (B)-(I) (C)-(II), (D)-(III) C (A)-(I), (B)-(II, (C)-(IV), (D)-(III) D (A)-(II), (B)-(I), (C)-(III), (D)-(IV)
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The QRS complex in a standard ECG represents:
A Repolarisation of auricles B Depolarisation of auricles C Depolarisation of ventricles D Repolarisation of ventricles
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Which of the following conditions cause erythroblastosis foetalis ?
A Mother Rh+ve and foetus Rh–ve B Mother Rh–ve and foetus Rh+ve C Both mother and foetus Rh–ve D Both mother and foetus Rh+ve
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Which would be the heart rate of a person if the
cardiac output is 5L, blood volume in the ventricles
at the end of diastole is 100 mL and at the end of
ventricular systole is 50 mL?
A 50 beats per minute B 100 beats per minute C 75 beats per minute D 125 beats per minute
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