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Q. No.The cell shown in the given diagram:
1.
is a bone marrow stem cells committed to produce RBCs
2.
is the megakaryocyte
3.
is the commonest WBC and is phagocytic
4.
is responsible for acquired immunity in humans
Subtopic: Blood: White Blood Cells |
82%
From NCERT
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Consider the given two statements:
| I: | SA node is the natural pacemaker of the human heart. |
| II: | SA node is the only part of that nodal musculature that is auto-excitable. |
| 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: Human Heart: Gross Anatomy |
56%
From NCERT
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Consider the given two statements:
| I: | The type of antigen present on the RBCs of a person with blood group type A is A |
| II: | The type of antibodies present in the plasma of a person with blood group type A is anti-A |
| 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: Blood Group (A,B,O) |
77%
From NCERT
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Cardiac output can be increased by:
| I: | Neural signals through sympathetic nerves |
| II: | Neural signals through parasympathetic nerves |
| III: | Adrenal medullary hormones |
| 1. | Only I and II |
| 2. | Only I and III |
| 3. | Only II and III |
| 4. | I, II and III |
Subtopic: Regulation of Cardiac Activity |
83%
From NCERT
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All the following statements are correct except:
| 1. | Neutrophils and monocytes are the main phagocytic cells in human blood. |
| 2. | Mature RBC does not have a nucleus and is biconcave disc-shaped. |
| 3. | A person with type A blood will have anti-B antibodies in his plasma. |
| 4. | Erythroblastosis foetal occurs when an Rh +ve mother is carrying an Rh –ve foetus. |
Subtopic: Blood: General Description & RBC |
86%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| COLUMN I | COLUMN II | ||
| A | P wave on an ECG | P | Ventricluar depolarization |
| B. | QRS complex on an ECG | Q | Atrial depolarization |
| C. | First heart sound | R | Closure of semilunar valves |
| D. | Second heart sound | S | Closure of atrioventricular valves |
Codes:
| A | B | C | D | |
| 1. | Q | P | S | R |
| 2. | P | Q | S | R |
| 3. | P | Q | R | S |
| 4. | Q | P | R | S |
Subtopic: ECG & Coronary Artery Disease |
85%
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 |
81%
From NCERT
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Match blood cells given in Column I with their most important function in Column II and select the correct match from the codes given:
Codes:
| COLUMN I | COLUMN II | ||
| A | Neutrophils | P | Phagocytosis |
| B | Basophils | Q | Inflammatory reactions |
| C | Lymphocytes | R | Immune responses |
| D | Thrombocytes | S | Coagulation of blood |
Codes:
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | P | S | R |
| 3. | R | S | P | Q |
| 4. | S | R | Q | P |
Subtopic: Blood: General Description & RBC |
94%
From NCERT
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Match the items given in Column I with those in Column II and select the correct option given below:
| Column I | Column II | ||
| a. | Tricuspid valve | (i) | Between left atrium and left ventricle |
| b. | Bicuspid valve | (ii) | Between right ventricle and pulmonary artery |
| c. | Semilunar valve | (iii) | Between right atrium and right ventricle |
| a | b | c | |
| 1. | iii | i | ii |
| 2. | i | iii | ii |
| 3. | i | ii | iii |
| 4. | ii | i | iii |
Subtopic: Human Heart: Gross Anatomy |
88%
From NCERT
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Arteries are best defined as the vessels which
1. carry blood away from the heart to different organs
2. break up into capillaries which reunite to form a vein
3. carry blood from one visceral organ to another visceral organ
4. supply oxygenated blood to the different organs
Subtopic: Human Heart: Gross Anatomy |
85%
From NCERT
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