What are the five main classes of immunoglobulins found in humans?
A. IgA, IgC, IgE, IgG, IgI
B. IgD, IgE, IgG, IgM, IgS
C. IgB, IgD, IgE, IgG, IgM
D. IgA, IgB, IgC, IgD, IgE
E. IgA, IgD, IgE, IgG, IgM
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Question 2) Which type of antibody is formed in response to parasitic infections and allergies, and has the effect of activating mast cells and basophils?
A.
IgA
B.
IgB
C.
IgD
D.
IgE
E.
IgG
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Question 3) The Fc region of some antibodies can trigger the activity of NK cells.
Indicate whether this statement is true or false.
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Question 4) The most prevalent antibody in blood and lymph is
A. IgA.
B. IgC.
C. IgD.
D. IgE.
E. IgG.
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Question 5) When an antibody covers the region of a virus that the virus uses to bind to a cell receptor, that covering function is known as ____________.
Fill in the blank with correct word.
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Question 6) IgA is primarily found
A. in blood.
B. in external secretions such as tears, saliva, and mucus.
C. in lymph.
D. on the surface of B-lymphocytes.
E. in the thymus, spleen, and lymph nodes.
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Question 7) Agglutination of mismatched blood is a function of
A. IgD, which is a dimer.
B. IgD, which is a pentamer.
C. IgM, which is a dimer.
D. IgM, which is a pentamer.
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Question 8) The constant region of the five classes of immunoglobulins are the same, and their names depend on their variable regions.
Indicate whether this statement is true or false.
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Question 9) Which part of an antibody attaches to an antigen?
A. The hinge region
B. The constant region
C. The heavy chain
D. The variable region
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Question 10) Describe the structure of an antibody. What type of molecule is it? What is its shape, how many parts does it have, and how do the parts differ?
What will be an ideal response?
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