Which of the following antimicrobial agents is the most toxic to humans?
A. 70% alcohol
B. ethylene oxide
C. quaternary ammonium compounds
D. chloramines
E. iodophors
Answer: B
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Some sensory receptors decrease their frequency of action potentials when exposed to a continued,
constant stimulus in a process known as: a. transduction. b. sensory adaptation. c. referred perception. d. reception. e. sensory summation
A substance that is resistant to changes in pH is called a(n) buffer
__________________ Indicate whether the statement is true or false.
The primary function of the mitochondrion is the production of ATP. To carry out this function, the mitochondrion must have all of the following except
A) the membrane-bound electron transport chain carrier molecules. B) proton pumps embedded in the inner mitochondrial membrane. C) enzymes for glycolysis. D) enzymes for the citric acid cycle. E) mitochondrial ATP synthase.
When light rays converge behind the retina, it is known as ____.
A. astigmatism B. color blindness C. nearsightedness D. macular degeneration E. farsightedness