Afish that has been salt-cured subsequently develops a reddish color. you suspect that the fish has beencontaminated by the extreme halophile, halobacterium. which of these features of cells removed from thesurface of the fish, if confirmed, would support your suspicion? 1. the presence of the same photosynthetic pigments found in cyanobacteria2. cell walls that lack peptidoglycan3. cells that are isotonic to conditions on the surface of the fish4. cells containing bacteriorhodopsin5. the presence of very large numbers of ion pumps in its plasma membranea) 2 and 5b) 3 and 4c) 1, 4, and 5d) 3, 4, and 5e) 2, 3, 4, and 5

i do not know and i have a 100 in this class

c.more precipitation,but only when emission levels.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.