Describe types of immunity. [3 MARKS]
Describe types of immunity. [3 MARKS]
Each Type and Description : 1.5 Marks
Types of Immunity :
Immunity is of two basic types, innate and acquired.
(A) Innate Immunity :
-Innate immunity is also known as inborn immunity. It is present from birth.
-Innate immunity is the first line of defense in most organisms, whether plants or animals.
-The immunity remains throughout life.
-Contact with a pathogen or its antigen is not essential.
-Innate immunity is inheritable.
-It protects the individual from contraction of diseases of other organisms.
(B) Acquired Immunity :
-Acquired immunity develops only on exposure to the concerned microorganism.
-It develops during life time.
-The acquired immunity can be short lived or life long.
-Contact with pathogen or its antigen is essential.
-Acquired immunity cannot be passed to the next generation.
Each Type and Description : 1.5 Marks
Types of Immunity :
Immunity is of two basic types, innate and acquired.
(A) Innate Immunity :
-Innate immunity is also known as inborn immunity. It is present from birth.
-Innate immunity is the first line of defense in most organisms, whether plants or animals.
-The immunity remains throughout life.
-Contact with a pathogen or its antigen is not essential.
-Innate immunity is inheritable.
-It protects the individual from contraction of diseases of other organisms.
(B) Acquired Immunity :
-Acquired immunity develops only on exposure to the concerned microorganism.
-It develops during life time.
-The acquired immunity can be short lived or life long.
-Contact with pathogen or its antigen is essential.
-Acquired immunity cannot be passed to the next generation.
