When carbon dioxide levels in the blood increase, the
A. condition is called hypocapnia.
B. pH of the blood increases.
C. blood becomes more acidic.
D. number of hydrogen ions in the blood decreases.
E. blood becomes more alkaline.
C
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The rapid rise and fall in force produced by a muscle fiber after a single action potential is a(n)
A) tetanus. B) unfused tetanus. C) twitch. D) motor end plate potential. E) muscle action potential.
Which statement accurately describes the effects of substrate and enzyme concentrations on reaction rate?
A. An increase in either substrate or enzyme concentration will increase the reaction rate. B. An increase in either substrate or enzyme concentration will decrease the reaction rate. C. An increase in substrate concentration increases the reaction rate, but enzyme concentration has no effect. D. A decrease in substrate concentration or an increase in enzyme concentration increases the reaction rate. E. An increase in substrate concentration or a decrease in enzyme concentration will increase the reaction rate.
Ovulation typically occurs on day 14 of the ovarian cycle, and the luteal phase occurs on days
A. 8-18. B. 6-14. C. 15-28. D. 1-5.
Electron microscopy allows for ________ magnification of specimens; therefore, ________ cell structures are visible using this form of microscopy
A) less; fewer B) greater; fewer C) greater; more D) less; more