Multiple Choice QuestionsWhich of the following is related to humoral immunity?
T- lymphocyte
B- lymphocyte
I- lymphocyte
P- lymphocyte
B.
B- lymphocyte
The term humor refers to plasma and lymph. B-lymphocytes mature within the bone marrow. The progeny of B-cells differentiate into memory B-cells and effector B-cells called plasma cells. A singe plasma cell can secrete more than 2000 molecule of antibody per second. Secreted antibodies are major effector molecules of humoral immunity.
Which is the correct sequence of arrangement of types of WBC in decreasing order in terms of number per mm3 of human blood
Eosinophils > Basophils > Neutrophils
Basophils > Eosinophils > Neutrophils
Neutrophils > Eosinophils > Basophils
Eosinophils > Neutrophils > Basophils
A female Anopheles mosquito can be recognised by
proboscis and palpi are long and more or less of equal length
proboscis long and palpi short
proboscis short and palpi long
Both proboscis and palpi are short
The anterior V-spot in microfilaria of Wuchereria represents
nerve ring
cervical papilla
excretory system
reproductive system
Which stage of malarial parasite is infective to man?
Gametocyte
Merozoite
Cryptomerozoite
Sporozoite
Which one of the following life cycle stages of Wuchereria bancrofti is infective to man?
Microfilaria
1st stage larva
2nd stage larva
3rd stage larva
Which one of the following life cycle stages of malarial parasite is responsible for relapse of malarial symptoms?
Merozoite
Sporozoite
Hypnozoite
Gametocyte
Switch
