Histamine in the blood is secreted by:

What is diapedesis?

(1)  A kind of amoeboid movement.

(2)  The process of filtration of urea in kidney.

(3)  A type of locomotion found in hydra.

(4)  Migration of WBCs into the tissue spaces from blood capillaries.

Identify the given figure and select the correct option 

1. Neutrophil - phagocytic cell which destroy foreign organisms entering the body

2. Eosinophil - their number increases during allergic infection

3. Lymphocyte - small sized non-motile and non-phagocytic

4. Monocyte - motile and phagocytic in nature

Leucocytes are ______ and ______.

1. colourless and enucleated

2. coloured and nucleated

3.  colourless and nucleated

4. coloured and enucleated

Which of the following sequence is correct in terms of abundance in blood?

1. RBC > WBC > Platelets

2. WBC > RBC > Platelets

3. RBC > Platelets > WBC

4. RBC < WBC > Platelets

Which of the following cell will play a role in resistance of infection and allergic reaction?

(1) Eosinophil

(2) Basophil

(3) Lymphocyte

(4) Neutrophils

Which of the following cell will play a role in inflammatory reactions?

1. Eosinophil

2. Basophil

3. Lymphocyte

4. Neutrophils

Which of the following cell/cells will play a role in phagocytosis?

1. monocytes

2. Neutrophils

3. Lymphocyte

4. both (1) and (2)

Which of the following cell/cells will play a role in immune responses?

1. Ganulocytes

2. Neutrophils

3. Lymphocytes

4. Macrophages

Which of the following sequence is correct in terms of abundance?
1. Neutrophils > Lymphocytes > Monocytes > Eosinophils > Basophils
2. Neutrophils > Lymphocytes < Monocytes > Eosinophils > Basophils
3. Neutrophils < Lymphocytes > Monocytes > Eosinophils > Basophils
4. Neutrophils > Lymphocytes > Monocytes < Eosinophils > Basophils