The ______ effect is a multiplying effect of second messenger pathways
Fill in the blank(s) with correct word
cascading
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The bolus is liquefied in the ________ and it is now called chyme
A) esophagus B) stomach C) small intestine D) mouth
The study of body structure is called
A) physiology. B) homeostasis. C) anatomy. D) positive feedback. E) negative feedback.
Cells can increase their responsiveness to an external chemical regulator by
A. increasing the number of their transmembrane receptors by exocytosis. B. decreasing the number of their transmembrane receptors by endocytosis. C. uncoupling their receptors from the second message generator. D. increasing the number of their transmembrane receptors by endocytosis. E. mutating their extracellular receptors so that the affinity for the chemical regulator is reduced.
If the nerves from the carotid and aortic bodies are cut, which of these would occur?
A. A decrease in arterial PO2 will no longer increase ventilation. B. An increase in arterial PCO2 will no longer increase ventilation. C. An increase in arterial lactic acid will inhibit ventilation. D. An increase in arterial PCO2 will inhibit ventilation. E. A decrease in arterial PO2 will inhibit ventilation.