Lymphocytes
Trending Questions
Q. Cells which produce antibodies are
- B lymphocytes
- T lymphocytes
- thrombocytes
- eosinophils
Q. Read the following statements regarding spleen and select the correct option :-
(i) Spleen is a large bean-shaped organ which mainly contains lymphocytes and phagocytes
(ii) Spleen is a large reservoir of erythrocytes
(iii) Spleen is a primary lymphoid organ
(iv) Spleen acts as a filter of the blood by trapping blood-borne micro-organisms
(i) Spleen is a large bean-shaped organ which mainly contains lymphocytes and phagocytes
(ii) Spleen is a large reservoir of erythrocytes
(iii) Spleen is a primary lymphoid organ
(iv) Spleen acts as a filter of the blood by trapping blood-borne micro-organisms
- (i), (ii) and (iv)
- (ii) and (iv)
- (i), (ii) and (iii)
- (i) and (ii)
Q. Haematopoiesis of T lymphocytes begins in ________ and ends in ________.
- bone marrow; thyroid gland
- bone marrow; thymus
- bone marrow; spleen
- thymus; bone marrow
Q. Which among the following is correct regarding primary and secondary immune responses?
- Primary response: IgM (High), IgG (Low), High intensity immune response
- Secondary response: IgM (Low), IgG (High), Low intensity immune response
- Primary response: IgM (Low), IgG (High), Low intensity immune response
- Secondary response: IgM (Low), IgG (High), High intensity immune response
Q. Which is the first antibody to be produced in primary response to an antigen?
- IgM
- IgG
- IgA
- Both a and b
Q.
Which of the following does not occur during the lag period of the primary antibody response?
- activation of helper T cells
- class switching to IgG
- presentation of antigen with MHC II
- binding of antigen to B-Cell Receptors
Q.
Agranulocytes responsible for immune response of the body are
(a) Basophils (b) neutrophils (c) eosinophils (d) lymphocytes
Q.
Why is it called B Cells?
Q. Haematopoiesis of T-lymphocytes and B-lymphocytes occurs in
Q. Haematopoiesis of T lymphocytes begins in ________ and ends in ________.
- bone marrow; thyroid gland
- thymus; bone marrow
- bone marrow; thymus
- bone marrow; spleen
Q. Match the following:
Column AColumn B1. Bone marrowp. Secondary lymphoid organ2. Lymph nodesq. Antibody production3. IgEr. Primary lymphoid organ4. B-lymphocytess. Allergic responses
Column AColumn B1. Bone marrowp. Secondary lymphoid organ2. Lymph nodesq. Antibody production3. IgEr. Primary lymphoid organ4. B-lymphocytess. Allergic responses
- 1-q, 2-p, 3-s, 4-r
- 1-r, 2-p, 3-q, 4-s
- 1-r, 2-p, 3-s, 4-q
- 1-s, 2-r, 3-q, 4-p
Q. Which of the following is not a granulocyte?
- Basophils
- Monocytes
- Acidophils
- Neutrophils
Q. Which of the following are involved in body defence?
- Neutrophils
- Lymphocytes
- All the above
- Macrophages
Q. A patient brought to the hospital with myocardial infarction will be immediately treated with
- Cyclosporin- A
- Statins
- Penicillin
- Streptokinase
Q.
Antibodies are produced by
Erythrocytes
Thrombocytes
Monocytes
Lymphocytes
Q. Identify the human blood cell with its characteristics.
- B-lymphocyte - Forms 20% of blood cells, involved in immune response
- Neutrophil - Most abundant blood cell, phagocytic
- Monocyte - Life span 3 days, produces antibodies
- Basophil - Secretes serotonin inflammatory response
Q. From where do erythrocytes, leuxoc leuc and platelets are released
Q. Cells which produce antibodies are:
- B-lymphocytes
- T-lymphocytes
- Thrombocytes
- Eosinophils
Q. Smallest human cells are
- Leucocytes
- Erythrocytes
- Sperms
- Liver cells
Q. The maturation of T-lymphocytes occur in the
- Bone marrow.
- Spleen.
- Kidney.
- Thymus.
Q. With reference to immune system there are two types of lymphocytes-T-cells and B-cells. Why are these so-named and what is their respective function ?
Q. Foetal haemoglobin has X affinity for oxygen than that of mother's haemoglobin during gestation. X is
- same
- higher
- lower affinity earlier but higher later.
- lower
Q. Assertion :Interferons are a type of antibodies produced by body cells infected by bacteria. Reason: Interferons stimulate inflammation at the site injury.
- Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- Assertion is correct but Reason is incorrect
- Both Assertion and Reason are incorrect
Q. Histamine and heparin are secreted by
- Monocytes
- Neutrophils
- Eosinophils
- Lymphocytes
- Basophils
Q. Antibodies are proteins secreted by
- memory T cells
- cytotoxic T cells
- helper T cells
- plasma B cells
Q. Find out the wrong match ________________.
- Eosinophils - allergic response
- Basophils - secrete histamine and serotonin
- Monocytes - secrete heparin
- Lymphocytes - immune response
- Neutrophils - phagocytic and destroy foreign organisms
Q. Human fetal haemoglobin differs from the adult haemoglobin in that it has
- Higher affinity for oxygen.
- Lower affinity for oxygen.
- Two subunits only.
- Is glycosylated.
Q. Which of the following cells are associated with immune system of the body?
- Macrophages
- Lymphocytes
- Neutrophils
- All of the above
Q. Polymorphonuclear leucocytes are
- Neutrophils
- T lymphocytes
- B lymphocytes
- Monocytes
Q. Match the following.
List I | List II | ||
A | Neutrophil | 1 | Single large nucleus |
B | Eosinophil | 2 | 2 to 3 lobed nucleus |
C | Basophil | 3 | Kidney shaped nucleus |
D | Lymphocyte | 4 | 2 to 7 lobed nucleus |
E | Monocyte | 5 | Bilobed nucleus |
- A- 4, B- 5, C- 2, D- 1, E- 3
- A- 1, B- 4, C- 3, D- 2, E- 5
- A- 4, B- 1, C- 3, D- 5, E- 2
- A- 2, B- 5, C- 1, D- 4, E- 3
- A- 2, B- 4, C- 5, D- 3, E- 1