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

question 75

Multiple Choice

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

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Definitions:

Optimal Consumption

refers to the situation in which a consumer allocates their income in a way that maximizes their overall satisfaction or utility, given their preferences and the prices of goods and services.

Demand Schedule

A demand schedule is a table that shows the quantity of a good or service that consumers are willing and able to purchase at various prices.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good.

Responsiveness of Quantity

The degree to which the quantity demanded or supplied responds to changes in price, income, or other factors.