Purple nonsulfur bacteria can use ALL of the following as electron donors for photosynthesis EXCEPT
a. H2O.
b. H2S.
c. H2.
d. Fe2+.
Answer: A
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Known as the "cell from hell," what toxin-producing dinoflagellate is responsible for significant fish kills in the mid-Atlantic region?
A) Vibrio cholera B) Conus magus C) Crassotrea virginica D) Mytilus edulis E) Pfiesteria piscicida
The plural for genus is ________.
A. genus B. geni C. genera. D. gena E. genae
Recently Zika virus has been in the news, with many cases in Central and South America and increasing numbers of cases in the southern United States. Five years ago this virus was essentially unheard of in these areas. This is an example of
A. a pandemic. B. an endemic virus. C. an emerging infectious disease. D. genetic recombination.
Mitochondrial electron transport takes place ________.
A. on the outer mitochondrial membrane B. in the fluid matrix of the mitochondria C. on the inner mitochondrial membrane D. on the outer mitochondrial membrane and on the inner mitochondrial membrane