Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Human Health and Disease

Question:

In which type of immunity ready-made antibodies are directly given to protect the body against foreign agents ?

Options:

Active immunity.

Passive immunity.

Innate immunity.

All of these.

Correct Answer:

Passive immunity.

Explanation:

In the type of immunity where ready-made antibodies are directly given to protect the body against foreign agents, it is referred to as "Passive immunity."

Passive immunity involves the transfer of pre-formed antibodies from one individual to another. These antibodies can be obtained from a donor organism that has previously developed immunity to a particular pathogen or toxin. This transfer of antibodies can occur naturally, such as from a mother to her baby through the placenta or breast milk, providing temporary protection to the infant.

Additionally, passive immunity can also be artificially acquired through the administration of specific antibodies, such as through injections of immune serum or immunoglobulins, to confer immediate but temporary protection against a particular disease. This form of immunity does not involve the recipient's immune system actively producing the antibodies; instead, the individual receives pre-formed antibodies.

Active immunity, on the other hand, involves the body's immune system actively producing antibodies in response to exposure to an antigen (pathogen or vaccine).

Innate immunity refers to the body's natural, non-specific defense mechanisms that act as the first line of defense against pathogens, but it does not involve the direct transfer of antibodies.

Therefore, in the context of providing ready-made antibodies for immediate protection, it is specifically associated with Passive immunity.