A fish that has been salt-cured subsequently develops a reddish color. You suspect that the fish has been contaminated by the extreme halophile, Halobacterium. Which of these features of cells removed from the surface of the fish, if confirmed, would support your suspicion?
1. the presence of the same photosynthetic pigments found in cyanobacteria
2. cell walls that lack peptidoglycan
3. cells that are isotonic to conditions on the surface of the fish
4. cells containing bacteriorhodopsin
5. the presence of very large numbers of ion pumps in its plasma membrane
A) 2 and 5
B) 3 and 4
C) 1, 4, and 5
D) 3, 4, and 5
E) 2, 3, 4, and 5
Structure of a salt wedge estuary.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
school of fish
Terry Winters, Color and Information.
Harry and Gus fish the same lake together from the same boat. Each morning Harry typically ...
Table salt (NaCl) molecules dissolving in water, resulting in Na+ and Cl– ions surrounded by ...