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

question 15

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 would support your suspicion?

• A) the presence of the same photosynthetic pigments found in cyanobacteria and cell walls that lack peptidoglycan
• B) cell walls that lack peptidoglycan and are isotonic to conditions on the surface of the fish
• C) cells unable to survive salt concentrations lower than 9% and cells containing many ion pumps on the plasma membrane
• D) the presence of the same photosynthetic pigments found in cyanobacteria and cells that are isotonic to conditions on the surface of the fish

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Definitions:

ATC

Stands for "Average Total Cost," which is the total cost per unit of output in economics, calculated by dividing the total cost by the quantity produced.

Fixed Costs

Fixed expenses unaffected by variations in production volume or sales, like lease payments, employee salaries, and insurance fees.

Variable Costs

Expenses that vary directly with the volume of production or services a company offers, including labor and materials.

Total Revenue

A company's aggregate income from product sales and service charges within a set timeframe.