A Fish That Had Been Salt-Cured Subsequently Develops a Reddish

question 54

Multiple Choice

A fish that had 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) its cells contain 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

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Definitions:

Recall

The act of retrieving information or events from the past in the absence of external cues, often measured in psychological tests.

Recognition

The cognitive process of identifying and understanding something previously learned or experienced.

Relearning

The process of learning material or skills again, often more quickly than the first time, after some period of forgetting.

Long-Term Memory

The phase of memory responsible for storing information for an extended period, ranging from a few days to a lifetime.