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Q. No.Match each item in Column I with one in Column II and select the correct answer from the codes given:
Column I
Column II
A.
Heart failure
a.
Lowered ejection fraction of a ventricle
B.
Heart attack
b.
Damage to the cardiac muscle
C.
Heart block
c.
Abnormal delay in conduction in nodal tissue
D.
Cardiac arrest
d.
Sudden stoppage of the heart
Codes
A
B
C
D
1.
a
b
c
d
2.
b
a
c
d
3.
b
a
d
c
4.
a
d
b
c
Subtopic: ECG & Coronary Artery Disease |
78%
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Cardiac activity could be moderated by the autonomic nervous system. Tick the correct answer:
| 1. | The parasympathetic system stimulates heart rate and stroke volume |
| 2. | The sympathetic system stimulates heart rate and stroke volume |
| 3. | The parasympathetic system stimulates heart rate but decreases stroke volume |
| 4. | The sympathetic system stimulates heart rate but decreases stroke volume |
Subtopic: Regulation of Cardiac Activity |
80%
From NCERT
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State of the heart when it is not pumping blood effectively to meet needs of body is called as:
| 1. Heart attack | 2. Heart block |
| 3. Cardiac arrest | 4. Heart failure |
Subtopic: ECG & Coronary Artery Disease |
85%
From NCERT
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A vein, in general, can be distinguished from an artery by:
| 1. | Absence of valves | 2. | Thin tunica media |
| 3. | Absence of tunica externa | 4. | Absence of tunica media |
Subtopic: Blood: General Description & RBC |
75%
From NCERT
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Platelets are cell fragments that:
| I: | are produced from megakaryocytes in the spleen in fetal life |
| II: | can release variety of factors involved in blood coagulation |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Blood: General Description & RBC |
53%
From NCERT
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Both heart rate and stroke volume in a human get doubled during exercise. His cardiac output will:
1. double
2. become four times
3. become eight times
4. remain the same
1. double
2. become four times
3. become eight times
4. remain the same
Subtopic: Human Heart: Double Circulation |
81%
From NCERT
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What would be true for the white blood cell shown in the given diagram?
| 1. | They differentiate into phagocytic cells |
| 2. | They secrete histamine and heparin in the blood |
| 3. | They are responsible for providing adaptive immunity in vertebrates |
| 4. | Their number is increased in acute bacterial infections |
Subtopic: Blood: White Blood Cells |
52%
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An Rh –ve person, when exposed to Rh +ve blood:
| 1. | will form antibodies against the Rh antigen |
| 2. | will be unaffected |
| 3. | will form antibodies against the Rh antigen only on second exposure |
| 4. | will receive anti Rh antibodies from the donor |
Subtopic: Blood: Blood Group (A,B,O) |
81%
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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 |
82%
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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