Concept explainers
To explain:
The importance of innate immunity upon adaptive immunity. Also, explain the survival of an individual in an immunity free normal environment.
Concept introduction:
Immunity can be defined as the ability of an individual to resist the infections. Two types of immunity have been categorized in human beings-innate immunity and adaptive immunity. Innate immunity can be defined as the built-in capacity of immune systems of organisms to target or kill pathogens regardless of their specific identity. Adaptive immunity is a type of immunity which is produced upon exposure to specific pathogens.
Explanation of Solution
Innate immunity is a non-specific type of immunity and can be referred as the first line of defense mechanism. This type of immunity is present since birth and the cells which are involved in providing innate immunity fight against foreign pathogen and completely eradicate them. The innate immune system helps in the protection against pathogen and further directs the process to adaptive immunity. Until the activation of an adaptive type of immunity, only the innate type of immunity provides protection to individuals. Hence, innate immunity is the first line of defense and is very important.
Both innate and adaptive immunity play a vital role in the protection of body from various types of infections. Thus, both the forms of immunity are equally important.
Organisms cannot survive in a normal environment without immunity and immune system. Immunity is very essential for normal
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Chapter 26 Solutions
Brock Biology of Microorganisms (15th Edition)
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