A pharmaceutical company hires a chemist to analyze the purity of the water being used in its drug preparations. If the water is pure, the chemist would expect to find
A) only molecules of H2O.
B) only H2O molecules and H+ ions.
C) H2O molecules, H+ ions, and OH- ions.
D) only H+ ions and OH- ions.
Answer: C
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The complement system serves to:
a. increase blood flow to the area of infec-tion and can also effectively wall off the infection through the production of barrier substances. b. attract and enhance the activities of pha-gocytes. c. provide substances secreted by one type of cell, which have substantial effects on the antiinfective activities of other cells. d. ingest and destroy microorganisms.
Which of the following is NOT one of the kingdoms included within the Eukarya domain?
a. Archaea b. Plantae c. Fungi
If you were to jog one kilometer a few hours after lunch, which stored fuel would you probably tap?
A) muscle proteins B) liver glycogen and muscle glycogen C) fat stored in adipose tissue D) blood proteins
Which of the following is not a hallmark sign of primary immunodeficiencies?
A) acute B) uncommon C) severe D) recurring E) persistent