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Q. No.The most common WBC under normal physiological conditions are:
| 1. | Neutrophils | 2. | Macrophages |
| 3. | Monocytes | 4. | Lymphocytes |
Subtopic: Blood: White Blood Cells |
84%
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%
From NCERT
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Match the plasma proteins in Column I with their function in Column II and select the correct answer from the codes given:
| Column I | Column II | ||
| A. | Albumins | a. | Hemostasis |
| B. | Globulins | b. | Transport carriers and immunity |
| C. | Fibrinogen | c. | Colloid osmotic pressure |
Codes:
| A | B | C | |
| 1. | a | b | c |
| 2. | a | c | b |
| 3. | b | a | c |
| 4. | c | b | a |
Subtopic: Blood: General Description & RBC |
88%
From NCERT
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Two atria are present in the heart of all the following vertebrates except:
| 1. | Fishes | 2. | Amphibians |
| 3. | Crocodiles | 4. | Birds |
Subtopic: Blood: General Description & RBC |
84%
From NCERT
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Identify the incorrect statement:
| 1. | Mollusks and arthropods have closed circulatory system |
| 2. | All vertebrates possess a muscular chambered heart |
| 3. | In fishes, the heart pumps out deoxygenated blood |
| 4. | The left atrium receives oxygenated blood in amphibians and reptiles |
Subtopic: Human Heart: Double Circulation |
83%
From NCERT
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Which of the following would not be normal in a healthy human being?
1. A cells/blood ratio of 45%
2. A plasma albumin concentration of 4%
3. An RBC count of 5.2 million mm-3
4. A hemoglobin level of 15 gram per liter
Subtopic: Blood: General Description & RBC |
56%
From NCERT
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | RBCs are devoid of nucleus in humans and are biconcave in shape and in all other mammals have nucleus and are spherical in shape. |
| Statement II: | RBCs have an average life span of 120 days after which they are destroyed in the spleen (graveyard of RBCs). |
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Blood: General Description & RBC |
70%
From NCERT
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Consider the given two statements:
| Assertion (A): | Open circulatory system is considered to be more advantageous than the closed circulatory system. |
| Reason (R): | The flow of fluid can be more precisely regulated in open circulatory system than in closed circulatory system. |
| 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 |
Subtopic: Circulatory Pathways |
96%
From NCERT
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If the duration of a cardiac cycle is 0.8 seconds, what number of cardiac cycles are expected to occur in one minute?
1. 48
2. 60
3. 75
4. 100
1. 48
2. 60
3. 75
4. 100
Subtopic: Human Heart: Cardiac Cycle |
84%
From NCERT
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How many of the given statements are true?
1. 0
2. 1
3. 2
4. 3
| I: | The interstitial fluid or tissue fluid has the same mineral distribution as that in plasma. |
| II: | Exchange of nutrients, gases, etc., between the blood and the cells always occur through this fluid. |
| III: | The lymphatic system collects this fluid and drains it back to the major veins. |
1. 0
2. 1
3. 2
4. 3
Subtopic: Lymph |
79%
From NCERT
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