For each of descriptions in questions 5-9, select the letter of the Ig isotype (A-E) that most closely matches it. Answers may be used more than once
A. IgM
B. IgD
C. IgG
D. IgE
E. IgA
An allergy attack
ANS: D. IgE antibodies play an essential role in immediate-type hypersensitivity reactions (e.g., allergies), asthma, and helminthic infections. In allergic reactions, mast cells express Fcε receptors, which are bound to IgE antibodies specific for the allergen (these IgE antibodies were created after a prior exposure to the allergen). On re-exposure to allergen that binds to the IgE antibodies, the mast cells are induced to degranulate and release large quantities of histamine and other vasoactive substances.
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immunodeficiency : Condition resulting from a defective ________ response.
Fill in the missing word in the definition for the key term.
The learning domains of physical education are titled psychomotor, cognitive, general motor ability, and affective
Indicate whether the statement is true or false
Herpes can be transmitted by oral sex only
Indicate whether the statement is true or false
What is the best advice for those who are very physically active?
A. Eat more fats. B. Eat fewer carbohydrates. C. Eat a balanced diet. D. Supplement the diet with vitamins. E. Drink protein milkshakes.