Leucocytes (White Blood cells)

Question 1

how do basophils react with wright’s stain?

Answer 1

basophils like basic dye

Question 2

how do eosinophils react with Wright’s stain?

Answer 2

eosinophils like acidic (Eosin) dye

Question 3

what are the three types of granulocyte?

Answer 3

1. Neutrophil
2. Basophil
3. Eosinophil

Question 4

what are the two groups of leucocytes?

Answer 4

1. Granulocytes
2. Mononuclear leucocytes/ Agranulocytes

Question 5

what are the two types of Agranulocytes?

Answer 5

1. Lymphocytes
2. Monocytes

Question 6

what cell breaks up to form thrombocytes and platelets?

Answer 6

Megakaryocytes

Question 7

what colour are granules in eosinophils?

Answer 7

pinky-red

Question 8

how do neutrophils react with Wright’s stain?

Answer 8

the cytoplasmic granules in neutrophils;s remain unstained by the acidic or basic dyes

Question 9

What is a multi potential hematopoitic stem cell (Hemocytoblast)?

Answer 9

a cell that produces blood cells

Question 10

what is the predecessor cell of Basophils, neutrophils, eosinophils and Monocytes?

Answer 10

Myeloblasts

Question 11

what percentage of leucocytes in the blood are basophils?

Answer 11

less than 1%

Question 12

what percentage of leucocytes in the blood are eosinophils?

Answer 12

1-5%

Question 13

what percentage of leucocytes in the blood are lymphocytes?

Answer 13

20-40%

Question 14

what percentage of leucocytes in the blood are monocytes?

Answer 14

2-10%

Question 15

what type of dye is the blue dye in Wright’s stain?

Answer 15

the blue dye is basophilic

Question 16

what type of dye is the red dye in Wright’s stain?

Answer 16

the red dye is acidophilic

Question 17

what is Leucopenia?

Answer 17

Leucopenia: low level of white blood cells

Question 18

what is leucocytosis?

Answer 18

Leucocytosis: high level of white blood cells