Neisseria gonorrhoeae circumvents our iron-sequestering defenses by
A) breaking down red blood cells to get to the iron-rich hemoglobin inside.
B) capturing our iron-binding proteins and pulling the iron out of them for their own use.
C) making siderophores that pull iron from our iron-binding proteins.
D) using manganese in their metal-requiring enzymes instead of iron.
E) releasing lytic enzymes and then scavenging the debris for iron.
Answer: B
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In the equation H = G + TS, the H stands for free energy
__________________ Indicate whether the statement is true or false.
Which plant hormone produced in apical meristems inhibits the growth of axillary buds?
A. gibberellin B. abscisic acid C. ethylene D. cytokinin E. auxin
Cell cycles of early embryonic animal cells are unusual because they have
a. no G1 or G2. b. an elongated G1 and G2. c. a short S. d. a much shortened M.
What is the ecological significance of shallow bays and coastal wetlands such as estuaries and salt marshes?
A) Coral reefs occur in these areas. B) They are an important source of crude oil. C) They serve as the habitat for many endangered species. D) They are the breeding grounds for a wide variety of sea-dwelling animals. E) They are safe from most human impact because humans do not live there.