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Q. No.Persons with 'AB' blood group are called as "Universal recipients". This is due to:
1.
Presence of antibodies, anti-A and anti-B, on RBCs.
2.
Absence of antibodies, anti-A and anti-B, in plasma.
3.
Absence of antigens A and B on the surface of RBCs.
4.
Absence of antigens A and B in plasma.
Subtopic: Blood: Blood Group (A,B,O) |
74%
Level 2: 60%+
NEET - 2021
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Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
| 1. | Epinephrine | 2. | Thrombokinase |
| 3. | Thrombin | 4. | Renin |
Subtopic: Blood: Blood Clotting |
77%
Level 2: 60%+
NEET - 2021
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Mixing of oxygenated and deoxygenated blood occurs in the heart of
| 1. | Bird | 2. | Crocodile |
| 3. | Rabbit | 4. | Frog |
Subtopic: Circulatory Pathways |
86%
Level 1: 80%+
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Which of the following conditions causes erythroblastosis fetalis?
| 1. | Mother and fetus |
| 2. | Mother and fetus |
| 3. | Both mother and fetus |
| 4. | Both mother and fetus |
Subtopic: Blood: Blood Group |
88%
Level 1: 80%+
NEET - 2020
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Which of the following values will not be normal for a healthy person?
| 1. | 10 gms of haemoglobin per 100 ml of blood |
| 2. | 5 million RBC per mm3 |
| 3. | 7000 WBC per mm3 |
| 4. | 200000 platelets per mm3 |
Subtopic: Blood: General Description & RBC |
76%
Level 2: 60%+
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If an Rh –ve mother is carrying an Rh +ve foetus, she is likely to be exposed to the Rh antigen:
| 1. | At the time of implantation of the blastocyst |
| 2. | At the time when the placenta becomes functional |
| 3. | When the first movements of the baby can be felt |
| 4. | At the time of delivery |
Subtopic: Blood: Blood Group |
92%
Level 1: 80%+
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The stroke volume of left ventricle in a person is 75 ml. His cardiac output is 6000 ml. What will be his heart rate?
| 1. | 72 per minute | 2. | 75 per minute |
| 3. | 80 per minute | 4. | 100 per minute |
Subtopic: Human Heart: Cardiac Cycle |
80%
Level 1: 80%+
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During the ventricular systole:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The atria also undergo systole |
| II: | The atrioventricular valves get closed |
| III: | The semilunar valves are forced open |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Human Heart: Cardiac Cycle |
87%
Level 1: 80%+
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Thrombokinase:
| 1. | is an enzyme formed in and secreted by the platelets |
| 2. | is an enzyme complex required to convert prothrombin into thrombin |
| 3. | dissolves the intravascular clots |
| 4. | prevents coagulation of the blood |
Subtopic: Blood: Blood Clotting |
91%
Level 1: 80%+
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What is incorrect regarding human heart?
| 1. | It is neurogenic |
| 2. | It is derived from embryonic mesoderm |
| 3. | It is a muscular pump |
| 4. | It is located in thorax between the lungs |
Subtopic: Regulation of Cardiac Activity |
89%
Level 1: 80%+
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