Which of the following represents the correct sequence of events in the cAMP signal transduction pathway?
A. G protein?cAMP?adenylyl cyclase?protein kinase A?cell response
B. G protein?adenylyl cyclase?protein kinase A?cAMP?cell response
C. G protein?protein kinase A?adenylyl cyclase?cAMP?cell response
D. G protein?adenylyl cyclase?cAMP?protein kinase A?cell response
E. adenylyl cyclase?G protein?cAMP?protein kinase A?cell response
D. G protein?adenylyl cyclase?cAMP?protein kinase A?cell response
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What type of root does ginger use to reproduce asexually?
a. bulb b. tuber c. stolon d. rhizome
Which of the following is not considered to be part of an adaptive immune response?
a. phagocytic cells e. antigen receptors b. antigen-presenting cells f. complement activation c. histamines g. antibodies d. cytokines h. none of these
For bacteria to continue growing rapidly when they shift from an aerobic environment to an anaerobic environment, they must
A) produce more ATP per molecule of glucose during glycolysis. B) increase the rate of glycolysis. C) increase the rate of glucose production. D) produce ATP using NADH. E) increase the rate of the Krebs cycle.
Glycolysis involves 10 enzyme-catalyzed steps, that can be grouped into three phases: energy investment phase, cleavage phase, and the energy liberation phase.
Answer the following statement true (T) or false (F)