WBC

Q. Match the columns I and II, and choose the correct combination from the options given.
$\begin{array}{cc}\text{Column-I}& \text{Column-II}\\ \text{a. Eosinophils}& \text{1. 0.5-1\%}\\ \text{b. Basophils}& \text{2. 2-3\%}\\ \text{c. Neutrophils}& \text{3. 6-8\%}\\ \text{d. Lymphocytes}& \text{4. 20-25\%}\\ \text{e. Monocytes}& \text{5. 60-65\%}\end{array}$

1. b-2, c-1, d-4, c-3, e-5
2. a-1, b-2, e-3, c-4, d-5
3. b-1, a-2, e-3, d-4, c-5
4. c-1, a-2, b-3, d-4, e-5

Q. The most abundant and least abundant cells of the blood are

1. WBCs and RBCs respectively
2. Platelets and RBCs respectively
3. RBCs and platelets respectively
4. RBCs and WBCs respectively

Q.

Cell mediated immunity is provided by

1. Plasma cells

2. B-Lymphocytes

3. T-Lymphocytes

4. Interferon

Q.

Which of the following cells are phagocytic

1. Neutrophils

2. Macrophages

3. Plasma cells

4. Both a & b

Q. Read the following statements related to lymphoid organs and select the incorrect statement?

1. Primary lymphoid organs provides micro-environment for the development of lymphocytes
2. The spleen is the smallest lymphoid organ, where water-borne microorganisms are trapped
3. Antigen trapped in lymph nodes helps in the activation of lymphocytes
4. Lymphoid tissue located within lining of respiratory, digestive, and urogenital tracts are called MALT

Q. Following are some statements regarding the primary and secondary antibody response in humans. All the statements are correct except -

1. Predominant isotype produced in primary response is lgM while that in secondary response is lgG
2. Primary antibodies have a higher affinity for antigen as compared to secondary antibodies
3. Primary immune response is more quicker and intense then secondary immune response
4. Lag period (time between the introduction of antigen and appearance of antibodies in blood) in primary response is longer than that in secondary response

Q. Largest single mass of lymphoid tissue in the human body is observed in

1. tonsils
2. spleen
3. Peyer's patches of small intestine
4. appendix

Q. Explain different types of blood groups and donor compatibility by making a table.

Q. Everyday we are exposed to large number of infectious agents. However, only a few of these exposures result in disease. Why?

Q.

Innate immunity involves all except

1. Anatomical barriers
2. Phagocytic barriers
3. Inflammatory barriers
4. Antibody production

Q. Which of the following cells do not take part in innate immunity?

1. Neutrophils
2. Natural killer cells
3. B-lymphocytes
4. Macrophages

Q. Histiocyte is a connective tissue cell which takes part in:

1. Fibre production
2. Matrix production
3. Phagocytosis
4. Secretion

Q. Find the correct statement for WBCs.

1. Produced only in the thymus
2. None of the above
3. Can squeeze through blood capillaries
4. Do not contain a nucleus

Q. It is said that the harmful alleles get eliminated from the population over a period of time, yet sickle-cell anaemia is persisting in the human population. Why?

Q. The life span of human WBC is approximately

1. Between 20 to 30 days
2. Between 2 to 3 months
3. Less than 10 days
4. More than 4 months

Q. The humoral immune system defends mostly against bacteria and viruses in the-

1. Body fluids
2. Regions beneath the skin
3. Internal organs
4. Digestive tract

Q. Match the columns I and II, and choose the correct combination from the options given.

Column I (WBCs)	Column II (Function)
a. Eosinophills	1. Involved in inflammatory reactions
b. Basophills	2. Allergic reactions
c. Neutrophills	3. Responsible for immune response
d. Lymphocytes	4. Phagocytic cells
e. Monocytes	5. Gas transport

1. a-2, b-1, c-4, d-3, e-5
2. a-2, b-1, c-4, d-3, e-4
3. a-1, b-2, c-3, d-4, e-5
4. a-4, b-5, c-1, d-2, e-3

Q. Find the correct statement for WBCs.

1. Can squeeze through blood capillaries
2. Produced only in the thymus
3. Do not contain a nucleus
4. None of the above

Q. Humoral immunity is due to:

1. $B-$ lymphocytes
2. $T-$ lymphocytes
3. $L-$ lymphocytes
4. $P-$ lymphocytes

Q.

How is blood made in our bodies?

Q. Which one of the following statements are wrong?
(a) Leucocytes disintegrate in spleen and liver.
(b) RBC, WBC, and blood platelets are produced by bone marrow.
(c) Neutrophils bring about destruction and detoxification of toxins of protein origin.
(d) Important function of lymphocytes is to produce antibodies.

1. b and c only
2. a and b only
3. a and d only
4. a and c only

Q. Inflammation is an important response of the immune system. The vasodilation of blood vessels allows important cells of the innate immune system to move out of the blood capillaries into the surrounding tissue. Which of the following members of the innate immune system is responsible for causing inflammation at the site of infection?

1. Natural Killer Cells
2. Mast cells
3. Macrophages
4. Dendritic cells

Q. The antibody which can cross placental barrier is

1. IgA
2. IgE
3. IgM
4. IgG

Q. a. Where are B-cells and T-cells formed?
b. How do they differ from each other?

Q. Name the primary and secondary lymphoid organs.

Q. Select the correct statement w.r.t. immunity.

1. Each antibody molecule has three peptide chains, two small called light chains and one longer called heavy chain
2. The primary and secondary immune responses are carried out with the help of T-lymphocytes only
3. The T-lymphocytes are responsible for cell-mediated immunity
4. Only IgA and IgM are produced in human body

Q. Erythrocytes of adult rabbit and other mammals are formed in______.

1. Kidney
2. Liver
3. Spleen
4. Bone marrow

Q. Primary and secondary immune response are carried out with the help of

1. B-Lymphocytes
2. Antiviral Proteins
3. T-Lymphocytes
4. Both A and B

Q. Distinguish between the following on the basis of what is given in the brackets.​

RBC and WBC (function)​

Q. Diapedesis means.

1. Movement of the food in gut
2. Formation of W.B.C.
3. The process by which leucocytes squeeze through thin capillary wall
4. Formation of R.B.C.