Explain what occurs during the inflammatory response and how it is a protective mechanism. What will be an ideal response?
Concepts to Consider: Bradykinin, histamine, and serotonin are released to dilate blood vessels and
increase permeability of capillaries in the affected area. Blood flow increases in the affected area to
bring in more phagocytic cells to destroy pathogens; increased flow makes skin feel warm and red;
edema results, causing the pain associated with inflammation. Cells release interleukin-1 resulting in
fever, which helps fight infection by raising body temperatures
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In the 1930s Kluyver and van Niel proposed a classification scheme based on
A. Gram reactions. B. biochemical relationships. C. presumed evolutionary relationships. D. DNA sequences.
During which phase of meiosis does the nuclear envelope break down?
a. prophase I and II b. metaphase I and II c. anaphase I and II d. telophase I and II
What part of the cell cycle - in an actively
dividing cell - does preparation for DNA replication take place?
a. G1 b. S c. G2 d. prophase e. telophase
Which of these haploid strains produces permease but does not produce ?-galactosidase?
A) I – P+ O+ Z+ Y+ B) I+ P+ O+ Z – Y+ C) I – P+ O+ Z – Y – D) I+ P+ O – Z+ Y+ E) I – P+ O+ Z+ Y –