WorksheetsImmunity and ELISA Quiz
Total questions: 20
Worksheet time: 10mins
Active immunity is characterized by
Immediate protection
Short duration
Antibody production by host
No memory
Passive immunity provides
Long-lasting immunity
Immunological memory
Immediate protection
Delayed response
Example of passive immunity is
BCG vaccine
MMR vaccine
Tetanus toxoid
Anti-tetanus serum
Active immunity is usually acquired by
Antiserum administration
Placental transfer
Infection or vaccination
Immunoglobulin injection
Passive immunity lacks
Antibodies
Protection
Immediate effect
Immunological memory
ELISA is mainly used for detection of
Antigens or antibodies
Bacterial motility
Fungal spores
Parasites only
Principle of ELISA is based on
Antigen-antibody reaction with enzyme label
Complement fixation
Precipitation
Flocculation
Common enzyme used in ELISA is
Coagulase
Oxidase
Horseradish peroxidase
Catalase
Indirect ELISA is mainly used to detect
Antigen
Antibody
Complement
Cytokines
Sandwich ELISA is used for detection of
Antibody only
Antigen only
Immune complexes
Haptens
Mode of transmission via contaminated food is called
Direct contact
Vector borne
Feco-oral transmission
Droplet spread
Transmission of infection through droplets occurs in
Tuberculosis
Cholera
Typhoid
Malaria
Vector borne diseases are transmitted by
Mosquitoes and flies
Food and water
Air droplets
Direct contact
Vertical transmission refers to spread from
Mother to fetus
Person to person
Animal to human
Environment to human
Herd immunity refers to
Individual immunity only
Immunity in animals only
Resistance of a community to infection
Passive immunity
Herd immunity mainly protects
Immune individuals
Non-immune individuals
Only children
Only elderly
Heterophile antigens are
Species-specific antigens
Identical antigens in different species
Self antigens
Tumor antigens
Paul-Bunnell test detects heterophile antibodies in
Typhoid fever
Infectious mononucleosis
Brucellosis
Malaria
Adjuvants are substances that
Reduce immune response
Enhance immune response of antigens
Kill microorganisms directly
Act as antibodies
Commonly used vaccine adjuvant is
Aluminium hydroxide
Penicillin
Formalin
Phenol
