When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called

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Solution

When a host is exposed to antigens (maybe in the form of living or dead microbes or other proteins), antibodies are produced in the host body. This type of immunity is called active immunity.

Active immunity is slow and maybe natural and artificial.

Hence, option A is correct.

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Similar questions

Q. When the immune system of host are exposed to antigen and produces antibodies it is called as ______.

Q. Assertion: Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host.

Reason: A bone marrow transplant given to a patient with genetic immunodeficiency is an example of artificially acquired passive immunity.

A substance containing weakened or dead microbes, introduced into a healthy person's body to produce antibodies (immunity) against the disease-causing microbes is known as __.

Q. Assertion: Artificial passive immunity results when ready made antibodies produced outside the host are introduced into the body.
Reason: In case of snakebites, the injection given to the patient contains readymade antibodies to fight against the snake venom. It is an example of artificial passive immunity.

Read the following passage and answer the questions:

Our body has a defence system to protect against invading microbes. The outermost line of defence is the barrier that prevents the entry of microbes into the body, and if they enter, phagocytic cells kill the microbes. This forms the local defence system of the body. The innermost line of defence includes the formation of specific antibodies that combine with the antigen (microbe) and then destroy it. This is called specific immunity.

What are the mechanical barriers that prevent microbial entry into our body?

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Active Immunity

Standard XI Biology

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When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called

When a host is exposed to antigens (maybe in the form of living or dead microbes or other proteins), antibodies are produced in the host body. This type of immunity is called active immunity. Active immunity is slow and maybe natural and artificial. Hence, option A is correct.

When a host is exposed to antigens (maybe in the form of living or dead microbes or other proteins), antibodies are produced in the host body. This type of immunity is called active immunity.

Active immunity is slow and maybe natural and artificial.

Hence, option A is correct.