Given below are four statements (a-d) regarding human blood circulatory system:
(a) | Arteries are thick-walled and have narrow lumen as compared to veins. |
(b) | Angina is acute chest pain when the blood circulation to the brain is reduced. |
(c) | Persons with blood group AB can donate blood to any person with any blood group under the ABO system. |
(d) | Calcium ions play a very important role in blood clotting. |
Which two of the above statements are correct?
1. (a) and (b) | 2. (b) and (c) |
3. (c) and (d) | 4. (a) and (d) |
Column I | Column II | ||
A. | Plasma | P. | 45 % of blood |
B. | Formed elements | Q. | 55 % of blood |
C. | Neutrophils | R. | 60-65 % of total WBCs |
D. | Lymphocytes | S. | 20-25 % of total WBCs |
A | B | C | D | |
1. | P | Q | R | S |
2. | Q | P | S | R |
3. | Q | P | R | S |
4. | P | Q | S | R |
Assertion (A): | Rh incompatibility related complication does not arise in first pregnancy even if an Rh negative mother is carrying an Rh positive foetus. |
Reason (R): | Rh antigens are proteins. |
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. |
I: | Type O is considered to be universal donor blood type. |
II: | It has neither anti-A antibodies nor anti-B antibodies circulating in the plasma. |
Column A | Column B | ||
1. | Albumin | A. | Blood clotting |
2. | Globulin | B. | Colloid osmotic pressure |
3. | Fibrinogen | C. | Immune responses |
1. | 1-B, 2-A, 3-C | 2. | 1-A, 2-B, 3-C |
3. | 1-C, 2-A, 3-B | 4. | 1-B, 2-C, 3-A |
1. | Neutrophils are the most abundant type of white blood cells in most mammals and form an essential part of the innate immune system. |
2. | Lymphocytes are involved in the creation of antibodies, which are crucial for the adaptive immune response. |
3. | Monocytes mature into macrophages and dendritic cells, which can engulf and destroy pathogens through phagocytosis. |
4. | Eosinophils are primarily responsible for the body's response to parasitic infections and are the predominant white blood cell type in human blood |
Consider the given two statements.
Statement I: | Basophils are the cells involved in inflammatory reactions. |
Statement II: | Neutrophils and monocytes are main phagocytic leukocytes. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
A: | Neutrophil is the most common white blood cell in human blood. |
B: | Basophil is the rarest white blood cell in human blood. |
C: | Lymphocytes are responsible for acquired immunity in human beings. |
D: | Monocytes differentiate into macrophages and are phagocytic in nature. |
E: | A total WBC count of 20,000 per mm3 of blood will be normal. |
1. | A person with blood group type A has type A antigens on RBC and does not have type B antigen on RBC. |
2. | A person with blood group type B has anti A antibodies in plasma and does not have anti B antibodies in plasma. |
3. | A person with type AB blood group has type A antigen and type B antigen on RBC but does not have anti A or anti B antibodies in plasma. |
4. | A person with blood group type O can receive blood from all types of blood group namely AB, A, B, and O. |
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. |