Desensitization therapy is used to stimulate the production of ____ instead of IgE
a. IgM
b. IgD
c. IgA
d. IgG
e. antihistamine
D
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During which phase of aerobic respiration is FADH2 produced?
a. glycolysis b. ethanol production c. acetyl-CoA formation d. the Krebs cycle e. glycolysis and the Krebs cycle
Why are phosphorylation and dephosphorylation reactions commonly used to regulate signal transduction pathways?
A. The addition or removal of a phosphate group can expose or hide potential binding sites in proteins or change protein activity. B. Phosphate groups are efficient second messengers. C. Protein kinases and phosphatases are abundant in most cells. D. The hydrolysis of bound GTP generates GDP, which can change the activity of proteins bound to GDP.
When describing the horizontal zonation of a body of water, which term refers to the shoreline area?
A. Limnetic zone B. Benthic zone C. Littoral zone D. Photic zone E. Estuary zone
Match the following prefixes with their relationship to the standard base unit (g, m, L):
Centi A) 1/100 B) 1/1,000,000 C) 1000 D) 1/1000