During reduction, a molecule or atom ________.
gains protons or gains electrons
loses protons or gains electrons
gains protons or loses electrons
loses protons or loses electrons
gains protons or gains electrons
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In the parasympathetic branch of the nervous system, which activity does acetylcholine NOT perform?
A. Exciting skeletal muscles B. Inhibiting cardiac muscle activity C. Blocking smooth muscle activity D. Stimulating emotion and memory
Abnormal heart rhythms are called ________.
A. arrhythmias B. sinus rhythms C. bradycardias D. tachycardias
Functions of the peripheral nervous system include
A) providing sensory information to the CNS only. B) providing sensory information to the CNS and carrying motor commands to the peripheral tissues and systems. C) making higher order decisions to interpret sensory inputs. D) carrying motor commands to the peripheral tissues and systems only. E) carrying information up and down the spinal cord.
Given the following information, what is the pH? ratio of [HCO3]/[CO2] = 20/0.5 pK = 6.1 log of 10 = 1.0 log of 20 = 1.3 log of 40 = 1.6
a. pH = 7.0 b. pH = 7.4 c. pH = 7.1 d. pH = 7.7 e. It is impossible to determine the pH with the information provided.