Mr. miller's biology class is studying cellular respiration. to model cellular respiration, they set up an experiment containing four flasks. each flask is the same size and are stoppered and placed under a floodlight. each flask also contains 200 ml of h20 and 2 ml of bromthymol blue. bromthymol blue is a chemical indicator solution that changes color from blue to yellow in the presence of co2. the students then place a vary placing a plant and fish into each flask according to the table above. which flask(s) will turn yellow and why?

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.