Question 27 options This immunoglobulin is the only one capable of crossing the

Question

Question 27 options This immunoglobulin is the only one capable of crossing the placenta. This immunoglobulin has opsonizing capability and provides long-term immunity This immunoglobulin has a high capacity to bind to a number of antigens IgM A patient is thought to have been infected by parasitic worms. The titer of which antibody would be elevated if that were true? 3. This immunoglobulin is found in large quantities in colostrum. The dimer of this immunoglobulin has an attached secretory component. This immunoglobulin is involved in allergic reactions. The first antibody to respond to an nfection 13

Explanation / Answer

Ans. 27

1. IgG - only immunoglobulin which is capable of crossing the placenta

Transfer of IgG antibodies to the foetus from placenta provides immunity to the infant.

2. IgG provides long term immunity.

3. IgM can bind with most antigens but its binding capacity is lower than IgG.

4. IgE is responsible for immunity against parasitic worms.

5. IgA immunoglobulin found in a large number inside colostrum that helps in protection of mucous membranes of infants.

6. Dimer of IgA has an attached secretory component.

7. IgE immunoglobulin is involved in allergic reactions.

8. IgM antibodies are the first to respond to an action

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