E. Antibodies such as IgG is described as looking like letter Y. This is obvious
ID: 272860 • Letter: E
Question
E. Antibodies such as IgG is described as looking like letter Y. This is obviously very simplistic. How many types of peptides (proteins) make up the Y? How many of each of the proteins are in the Y? How are they arranged? Which part binds to the antigen? How many of those sites are there? Do they bind to antigen with specificity or not? What functions does the constant region of the antibody have? F. Briefly describe 7 functions of the antibodies G. One of these functions might contribute to the ability of antibody to cause type I diabetes? Can you figure out which function?Explanation / Answer
E. There are two types of peptides that are present in the antibody.
Two light chain and two heavy chains are present in the antibody.
They are arranged in Y shaped structure where light and heavy chain ate joined by disulphide bonds.
Antigen presenting sites binds to the antigen.
2 antigen presenting sites are present in antibodies .
Yes, each antigen presenting sites are specific for each antigen.
Constant region determine the function of specific antibody.
F. Function of antibody include
1. Inhibit the entry of pathogen in the body of organism.
2. Identify and neutralize antigen in the body.
3. Antibodies also help in protecting of mucus.
4. Helps the body against fighting against parasites.
5. Provide immunity to the embryo from a mother.
6. Helps in B cell development.
7. Helps in maintaining toxic free body.
G. As, antibodies main function is to recognize external substance from entering in the body. But sometimes, the body is not able to differentiate between it's own body part and external substance. This is called as autoimmunity. In diabetes, I the body is making antibodies against insulin producing beta cells of pancreas that lead to the disease diabetes I.
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