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Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]
- a)lgM
- b)lgA
- c)lgG
- d)lgD
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which one of the following immunoglobulins does constitute the largest...
(b) Colostrum contains high levels of lgA, which gives passive immunity to foetus.
Most Upvoted Answer
Which one of the following immunoglobulins does constitute the largest...
The correct answer is B) IgA.
Explanation:
Human milk contains various types of immunoglobulins (antibodies) that provide passive immunity to the newborn. These immunoglobulins are produced by the mother's immune system and are passed on to the baby through breast milk. Among these, the largest percentage of immunoglobulins in human milk is IgA (Immunoglobulin A).
Here are some key points related to IgA in human milk:
- IgA is the most abundant immunoglobulin in human milk, accounting for about 90% of the total Ig content.
- IgA is important for protecting the newborn against infections by pathogens that enter through mucosal surfaces (such as the respiratory, gastrointestinal, and urogenital tracts).
- IgA is produced by the mother's immune system in response to specific antigens (such as bacterial or viral infections) and is secreted into the milk by the mammary gland.
- IgA in human milk is mainly in the form of dimeric IgA (two IgA molecules linked together), which provides better protection than monomeric IgA.
- IgA in human milk has various functions, such as neutralizing toxins and viruses, preventing bacterial attachment to mucosal surfaces, and promoting the clearance of pathogens by immune cells.
In summary, IgA is the most abundant and important immunoglobulin in human milk, providing passive immunity to the newborn and protecting against infections.
Explanation:
Human milk contains various types of immunoglobulins (antibodies) that provide passive immunity to the newborn. These immunoglobulins are produced by the mother's immune system and are passed on to the baby through breast milk. Among these, the largest percentage of immunoglobulins in human milk is IgA (Immunoglobulin A).
Here are some key points related to IgA in human milk:
- IgA is the most abundant immunoglobulin in human milk, accounting for about 90% of the total Ig content.
- IgA is important for protecting the newborn against infections by pathogens that enter through mucosal surfaces (such as the respiratory, gastrointestinal, and urogenital tracts).
- IgA is produced by the mother's immune system in response to specific antigens (such as bacterial or viral infections) and is secreted into the milk by the mammary gland.
- IgA in human milk is mainly in the form of dimeric IgA (two IgA molecules linked together), which provides better protection than monomeric IgA.
- IgA in human milk has various functions, such as neutralizing toxins and viruses, preventing bacterial attachment to mucosal surfaces, and promoting the clearance of pathogens by immune cells.
In summary, IgA is the most abundant and important immunoglobulin in human milk, providing passive immunity to the newborn and protecting against infections.
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Community Answer
Which one of the following immunoglobulins does constitute the largest...
Human milk colostrum contains IgA.It is the 2 nd most abundant Ig. Exists as dimer nd is present in exosecretions like saliva, tear, milk.
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Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]a)lgMb)lgAc)lgGd)lgDCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]a)lgMb)lgAc)lgGd)lgDCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]a)lgMb)lgAc)lgGd)lgDCorrect answer is option 'B'. Can you explain this answer?.
Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]a)lgMb)lgAc)lgGd)lgDCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]a)lgMb)lgAc)lgGd)lgDCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following immunoglobulins does constitute the largest percentage in human milk? [2015 RS]a)lgMb)lgAc)lgGd)lgDCorrect answer is option 'B'. Can you explain this answer?.
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