Identify the incorrectly matched pair:

1. Plasma protein 6 to 8 %
2. Formed elements  55% of the blood
3. Hemoglobin  12 to 16 gm in 100 ml of blood
4. Platelets  150000 to 350000 mm-3

Subtopic:  Blood: General Description & RBC |
 81%
From NCERT
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When anti B antibodies are present in the plasma and A antigens on the surface of RBCs of a person, her blood group can be:

 
1. A and AB 2. Only A
3. Only B 4. O
Subtopic:  Blood: Blood Group |
 88%
From NCERT
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Inter-atrial septum in the human heart is:

 
1. a thin muscular wall 2. a thick muscular wall
3. a thin membranous wall 4. a thick membranous wall
Subtopic:  Human Heart: Gross Anatomy |
 78%
From NCERT
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The least common of WBCs in the human blood are:

 
1. Eosinophils 2. Lymphocytes
3. Neutrophils 4. Basophils
Subtopic:  Blood: White Blood Cells |
 85%
From NCERT
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The enzyme that activates fibrinogens in the blood is:

1. Thromboplastin 2. Thrombokinase
3. Thrombin 4. Plasmin
Subtopic:  Blood: Blood Clotting |
 74%
From NCERT
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Blood enters the heart because muscles of the:

1. ventricles relax 2. ventricles contract
3. atria relax 4. atria contract
Subtopic:  Human Heart: Double Circulation |
 69%
From NCERT
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The portal systems seen in humans include:
I: Hepatic portal system
II: Renal portal system
III: Hypothalamic Hypophyseal portal system

1. I and II only 2. I and III only
3. II and III only 4. I, II and III
Subtopic:  Human Heart: Double Circulation |
 52%
From NCERT
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The period of systole is represented on surface ECG as between:
1. Beginning of P wave and beginning of Q wave
2. End of S wave and beginning of T wave
3. Shortly after Q wave and end of the T wave
4. Two successive R waves

Subtopic:  ECG & Coronary Artery Disease |
From NCERT
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Which of the following can be called as a ‘cascade’ process?

1. Micturition reflex
2. Formation of cross bridges in skeletal muscle contraction
3. Coagulation of blood
4. Regulation of respiration
Subtopic:  Blood: Blood Clotting |
 93%
From NCERT
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The deoxygenated blood from the cardiac muscles is returned to the right atrium by:

 
1. coronary sinus 2. pre-caval vein
3. post-caval vein 4. pulmonary veins
Subtopic:  Human Heart: Double Circulation |
 65%
From NCERT
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