Virulence factors include all the following, except
A. exoenzymes.
B. capsules.
C. endotoxin.
D. ribosomes.
E. exotoxin.
Answer: D
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Which of the following is not a function of root hairs? a. Increase the uptake of dissolved oxygen
b. Increase the uptake of carbon dioxide. c. Increase the uptake of mineral ions. d. Increase the uptake of soil water. e. Increase surface area of the root system.
Four of the five items listed below are chloroplast
features. Select the exception. a. stroma b. granum c. microbody d. pigment e. ATP
Hfr cells can integrate the F factor and some genes into the bacterial chromosome. How do Hfr cells accomplish this?
a. through crossing-over b. through mitosis c. through meiosis d. through prophase
Which one of these substances would NOT be produced at the same time as coagulase?
A) fimbriae B) hemolysin C) capsules D) fibrinolysin