Q. No.A person has a complete blood count done. Which of the following would not be normal?
1. total RBC count - 5.0 million /µL
2. total WBC count – 1500 /µL
3. total platelet count - 225,000 /µL
4. hemoglobin – 14.5 g / 100 ml
1. total RBC count - 5.0 million /µL
2. total WBC count – 1500 /µL
3. total platelet count - 225,000 /µL
4. hemoglobin – 14.5 g / 100 ml
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Coagulation of blood can be prevented by removal of which of the following in the blood?
| 1. | transferrin | 2. | iron |
| 3. | antibodies | 4. | calcium |
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What is true for the blood Type O?
| 1. | It is universal donor because it has neither anti-A antibodies nor anti-B antibodies circulating in the plasma. |
| 2. | It is universal donor because it has neither antigen A nor antigen B on its RBCs. |
| 3. | It is universal recipient because it has neither anti-A antibodies nor anti-B antibodies circulating in the plasma. |
| 4. | It is universal recipient because it has neither antigen A nor antigen B on its RBCs. |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | The delay in the conduction of the impulse at the AV node is critical to the normal functioning of the human heart. |
| Reason (R): | It ensures that the atria have ejected their blood into the ventricles before the ventricles contract. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | If the SA node does not function, or the impulse generated in the SA node is blocked before it travels down the electrical conduction system, the heart would stop. |
| Reason (R): | No other part of the nodal tissue of the heart is capable of generating the impulse. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | Lymph that enters the lymph vessels from the interstitial spaces usually does not flow backwards along the vessels. |
| Reason (R): | Unlike the cardiovascular system, the lymphatic system is not closed and has no central pump. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | The increased efficiency of the double circulatory system in mammals and birds is thought to have been important in the evolution of endothermy. |
| Reason (R): | Crocodile, a reptile, is not an endotherm in spite of having a four chambered heart. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | The left ventricle pumps the blood with greater force than the right ventricle. |
| Reason (R): | The left ventricle pumps more blood than the right ventricle during each contraction. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Certain factors that can initiate coagulation of blood can be released by:
| I: | Platelets in the blood |
| II: | Tissues at the site of injury |
| III: | Liver |
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
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All terrestrial vertebrates possess:
1. A muscle or elastic membrane to increase thoracic volume
2. A renal portal system
3. A skin that does allow diffusion of gases
4. At least a three chambered heart
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