1.The blood corpuscles are of _________ kinds.
a) 5
b) 4
c) 2
d) 3
Explanation: The blood corpuscles are of 3 types. They are colored corpuscles- erythrocytes, Colorless corpuscles – Leucocytes and blood platelets.
2. Blood is stained with _________ stain.
a) Methylene blue
b) Safranin
c) Leishman stain
d) Carbol fuchsine
Explanation: Leishman stain is used in microscopy for staining blood smears. It is generally used to differentiate and identify leucocytes malaria parasites and trypanosomas
3. Process of formation of blood corpuscles is called _____________
a) Haemolysis
b) Haemozoin
c) Haemopoesis
d) Haemoter
Explanation: The Process of formation of blood corpuscles is called Haemopoesis. It occurs in the bone marrow.
4. Graveyard of RBC is ________
a) Spleen
b) Liver
c) Kidney
d) Thymus
Explanation: Old red blood cells are recycled in the spleen. Platelets and white blood cells are stored there. Spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis
5. Which leucocytes release heparin and histamine in blood?
a) Neutrophil
b) Basophil
c) Eosinophil
d) Monocytes
Explanation: Basophil contains heparin which is an anticoagulant. It is a type of white blood cell
6. Which blood cells secrets antibody?
a) Eosinophils
b) Monocytes
c) Lymphocytes
d) Neutrophils
Explanation: A Lymphocyte is a type of white blood cell that is a part of the immune system. There are 2 main types of Lymphocyte: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses and toxins.
7. Vitamin essential for blood clotting is _____________
a) Vitamin K
b) Vitamin A
c) Vitamin B
d) Vitamin C
Explanation: Vitamin K is used by the body to help blood clot. Warfarin is used to slow blood clotting. By helping the blood clot vitamin k might decrease the effectiveness of warfarin.
8. Hemoglobin is a ___________
a) Reproductive pigment
b) Respiratory pigment
c) Carbohydrate
d) Fat
Explanation: Hemoglobin is a protein in RBC that carries oxygen throughout the body. Lower Hemoglobin counts indicate anemia.
9. Absence of which clotting factor leads to Hemophilia-A?
a) Factor VII
b) Factor VIII
c) Factor IX
d) Factor X
Explanation: Hemophilia-A is also called factor VIII deficiency or classic hemophilia. It is a genetic disorder caused by missing or defective factor VIII a clotting protein
10. What prevents the clotting of blood inside blood vessels?
a) Heparin
b) Serotonin
c) Fibrinogen
d) Fibrin
Explanation: Heparin is an anticoagulant that prevents the formation of blood clots. It is used to treat blood clots in veins arteries or lung