Which of the following is known to be a second messenger?

A. Adenylyl cyclase
B. Epinephrine
C. Phospholipase C
D. ATP
E. Diacylglycerol


Answer: E

Anatomy & Physiology

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The vagus nerve gives rise to preganglionic parasympathetic fibers involved in regulating most thoracic and abdominal organs.

Answer the following statement true (T) or false (F)

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Answer the following statement true (T) or false (F)

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Na (atomic no. 11 ) reacts with Cl (atomic no. 17 ) to become stable. In the reaction, Na will ________, while Cl will ________

A) give up one electron; accept one electron B) become an anion; become a cation C) accept one electron; give up one electron D) give up one proton; accept one proton E) share one electron with chlorine; share one electron with sodium

Anatomy & Physiology