The chemistry of living systems representing all chemical reactions is called
A. anabolism.
B. metabolism.
C. catabolism.
D. thermodynamics.
E. enzymology.
Answer: B
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Which of the following does NOT apply to bacterial pathogens affecting the respiratory tract?
A) Humans are the only reservoir for most bacterial respiratory pathogens. B) Most are normally transmitted person to person. C) Some often initiate secondary infections that can be life threatening. D) Most respiratory bacterial pathogens do not respond to antibiotic therapy.
Which process produces multiple proteins from the same primary transcript in the same cell?
A. chromatin remodeling B. histone modification C. combinatorial control D. alternative splicing E. RNA editing
Which layer of the skin is composed of stratified squamous epithelium cells? a. Epidermis b. All of these choices have stratified squamous epithelium
c. Hypodermis d. Dermis e. None of these choices have stratified squamous epithelium.
Pure water is defined by
A) its ability to serve as a pH buffer in solutions. B) an equal number of H+ and OH- ions. C) a neutral pH of 7, and equal number of H+ and OH- ions, and its ability to serve as a pH buffer in solutions. D) a neutral pH of 7. E) a neutral pH of 7 and an equal number of H+ and OH- ions.