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Q. No.“Bundle of His” are
1. nervous tissue supplied to ventricles
2. nervous tissue supplied to heart
3. muscular tissue supplied to ventricles
4. muscular tissue supplied to heart
Subtopic: Human Heart: Gross Anatomy |
61%
From NCERT
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Identify the correct statements:
| I: | Fibrinogens are needed for clotting or coagulation of blood. |
| II: | Globulins, primarily, are involved in the defense mechanisms of the body. |
| III: | The albumins help in osmotic balance. |
| 1. | Only I | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Blood: General Description & RBC |
95%
From NCERT
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A person has swelling both feet [oedema] and the doctor suspects deficiency of proteins to be the reason. Which plasma protein is most likely to be responsible for this?
| 1. | Albunims | 2. | Globulins |
| 3. | Fibrinogen | 4. | Angiotensinogen |
Subtopic: Blood: General Description & RBC |
70%
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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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How many of the given statements regarding leucocytes in human are true?
| I. | Neutrophils are the most abundant cells (60-65 percent) of the total WBCs. |
| II: | Basophils are the least (0.5-1 percent) of the total WBCs. |
| III: | Neutrophils and monocytes (6-8 percent) are phagocytic cells. |
| IV: | Basophils secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions. |
| V: | Eosinophils (2-3 percent) resist infections and are also associated with allergic reactions. |
| VI: | Lymphocytes (20-25 percent) are responsible for immune responses of the body. |
| 1. | 3 | 2. | 4 |
| 3. | 5 | 4. | 6 |
Subtopic: Blood: White Blood Cells |
83%
From NCERT
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Regarding ABO grouping:
1. only a and b are correct
2. only c and d are correct
3. a, b, c, and d are correct
4. a, b, c, and d are incorrect
| a. | the blood type is decided by the presence or absence of two surface antibodies on the RBCs namely anti-A and anti-B. |
| b. | the plasma of different individuals contain two natural antigens. |
| c. | a person with blood group A can receive blood either from a person with blood group O or from a person with blood group AB. |
| d. | a person with blood group A can donate blood either to a person with blood group O or to a person with blood group A. |
2. only c and d are correct
3. a, b, c, and d are correct
4. a, b, c, and d are incorrect
Subtopic: Blood: Blood Group (A,B,O) |
61%
From NCERT
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Fibrins are formed by the conversion of inactive fibrinogens in the plasma by the enzyme:
1. thrombokinase
2. throboplastin
3. thrombin
4. streptokinase
1. thrombokinase
2. throboplastin
3. thrombin
4. streptokinase
Subtopic: Blood: Blood Clotting |
81%
From NCERT
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The interstitial fluid or tissue fluid:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | is released out as the blood passes through the capillaries in tissues leaving the larger proteins and most of the formed elements in the blood vessels. |
| II: | has nearly the same mineral distribution as that in plasma. |
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: Lymph |
86%
From NCERT
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Consider the two statements:
| Assertion (A): | Open circulatory system is considered to be more advantageous than the closed circulatory system. |
| Reason (R): | Open circulatory system is present in arthropods and molluscs, two of the most successful animal phyla. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Circulatory Pathways |
87%
From NCERT
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How many of the given statements are correct:
| I: | Fishes have a 2-chambered heart with an atrium and a ventricle. |
| II: | Amphibians and the reptiles (except crocodiles) have a 3-chambered heart with two atria and a single ventricle. |
| III: | Crocodiles, birds and mammals possess a 4-chambered heart with two atria and two ventricles. |
| IV: | The only vertebrates where the heart pumps out deoxygenated blood are fishes. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Circulatory Pathways |
From NCERT
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