Multiple Choice Questions

Advertisement

Which of the following cytoplasmic granules contain histamine

  • Basophils

  • Acidophils

  • Eosinophils

  • Neutrophils


A.

Basophils

Basophils appear in many specific kinds of inflammatory reactions, particularly those that cause allergic symptoms.Basophils contain anticoagulant heparin, which prevents blood from clotting too quickly. They also contain the vasodilator histamine, which promotes blood flow to tissues.


Advertisement

Assertion : Mast cells in the human body release excessive amounts of inflammatory chemicals which cause allergic reactions.

Reason : Allergens in the environment on reaching human body stimulate mast cells in certain individuals.

  • If both Assertion and Reason are true and the reason is the correct explanation of the assertion

  • If both Assertion and Reason are true but the reason is not the correct explanation of the assertion

  • If Assertion is true statement but Reason is false

  • If both Assertion and Reason are false statements


Which of the following is not immunised by triple antigen ?

  • Typhoid

  • Tetanus

  • Diptheria

  • Whooping cough


Which organ is considered as "Graveyard of RBC" where most of them are destroyed by macrophages

  • Red bone marrow

  • Spleen

  • Kidney

  • Intestine


Squeezing of leucocytes out from the endothelium of capillaries to fight foreign agents. is known as

  • haemolysis

  • diapaedesis

  • phagocytosis

  • rouleaux


Advertisement

Liver damage caused by excessive drinking of alcohol is called

  • hepatitis

  • dematitis

  • liver cirrhosis

  • liver diarrhoea


Which lg is produced in primary immune response

  • IgA

  • IgG

  • IgE

  • IgM


The vector of the kala-azar is

  • Aedes sp

  • Anopheles stephenis

  • Culex fatigans

  • Phlebotomus sp


Only one of the following four ways through which AIDS can spread?

  • Infected needles and syringes

  • Through mosquito bites

  • Looking after AIDS patient

  • Shaking hands, coughing, sneezing, hugging


Advertisement
<

Refractory period of a muscle fibre in mammals is

  • 0.8001 sec

  • 0.002 sec

  • 0.004 sec

  • 0.005 sec


Advertisement