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The yellowish fluid "colostrum" secreted...

The yellowish fluid "colostrum" secreted by mammary glands of mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. This type of immunity is called as :

A

Passive immunity

B

Active immunity

C

Acquired immunity

D

Autoimmunity

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The correct Answer is:
To solve the question regarding the type of immunity provided by colostrum, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Colostrum**: - Colostrum is a yellowish fluid secreted by the mammary glands of a mother during the initial days of lactation. It is rich in nutrients and antibodies. 2. **Identifying the Antibodies**: - The key antibodies present in colostrum are Immunoglobulin A (IgA) and sometimes Immunoglobulin G (IgG). These antibodies play a crucial role in protecting the infant from infections. 3. **Types of Immunity**: - There are different types of immunity: - **Passive Immunity**: This involves the transfer of ready-made antibodies from one individual to another. It provides immediate protection but is temporary. - **Active Immunity**: This occurs when the body is exposed to antigens and produces its own antibodies. This type of immunity is long-lasting. - **Acquired Immunity**: This is immunity gained after birth and is specific to pathogens. - **Autoimmunity**: This is a condition where the immune system attacks its own body cells. 4. **Determining the Correct Type of Immunity**: - Since colostrum contains ready-made antibodies (IgA and IgG) that are transferred from the mother to the infant, this type of immunity is classified as **Passive Immunity**. 5. **Conclusion**: - Therefore, the correct answer to the question is **Passive Immunity**. ### Final Answer: The type of immunity provided by the yellowish fluid "colostrum" is called **Passive Immunity**. ---
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