CBSE Class 9 Answered
define immunity,immunisation and vaccine .
Asked by | 27 Oct, 2012, 11:59: AM
Expert Answer
Immunity is the ability of our body to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
Immunisation is the process by which immunity to infectious diseases is produced artificially by introducing specific antigens (dead or weakened microorganisms) into the body. The body produces antibodies in response to the antigens, giving protection from that disease.
Vaccine is a biological preparation consisting of a suspension of weakened or dead pathogenic cells injected in the body in order to stimulate the production of antibodies.
Answered by | 28 Oct, 2012, 09:51: AM
Application Videos
-
Factors Causing Diseases
This video discusses the factors causing diseases. -
AIDS - A Syndrome
This video explains why AIDS is a syndrome and not a disease. -
Diarrhoea- Bacterial Disease
This video explains the signs and symptoms of diarrhoea. -
Japanese encephalitis - Viral Disease ...
This video explains the signs and symptoms of Japanese encephalitis. -
Typhoid and Tuberculo ...
This video explains the signs and symptoms of typhoid and tuberculosis.
Concept Videos
-
Diseases and Illness
Health and Diseases -
Diseases and Illness
Classify the disease into acute and chronic diseases and Infectious and no... -
Diseases and Illness
Explain the symptoms of various common infectious human diseases. The prin... -
Diseases and Illness
Health and Diseases -
Diseases and Illness
Classify the disease into acute and chronic diseases and Infectious and no...
CBSE 9 - Biology
Asked by jayeshsah1995 | 05 Oct, 2023, 02:18: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by ankitshahu955 | 21 Mar, 2022, 04:46: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by avaniakalaskar | 24 Feb, 2022, 09:18: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by nidhitalwar1412 | 17 Jan, 2022, 06:46: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by princemodi2580 | 18 Nov, 2021, 10:31: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by sachinyadavjanjaria | 19 Jan, 2021, 06:19: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by abhimanyu4470 | 29 Dec, 2020, 07:15: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by ranpariadishant | 04 Nov, 2020, 03:37: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by naishaarora1405 | 16 Oct, 2020, 01:45: PM
ANSWERED BY EXPERT
