UV radiation's bactericidal activity comes from:
A. the rays burning the cells.
B. it destroying the lipid layer of the cell membrane.
C. the ozone it produces.
D. the UV rays damaging the cells' DNA.
Answer: D
Health Professions
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The intramuscular route is commonly used for drugs that are irritating to:
A) subcutaneous tissue B) muscles C) the esophagus D) the ears
Health Professions
According to the Gurney-Mott theory of image formation,
a. at least three silver atoms must form a visible black metallic silver speck upon processing. b. several thousand atoms must form a visible black metallic silver speck upon processing. c. the process begins with an electron migrating toward the x-ray photon. d. positively-charged sensitivity specks are formed by the migration of photons.
Health Professions