We’re meant to design a controlled experiment based on the question: what ph produces the highest rate of catalase reaction? and write out the hypothesis, independent/dependent variables, trials, constants and such. but i’m at a loss on where to start

You should start by doing some research on past experiments and then form a hypothesis based on the researched you gathered and what you believe will happen.

Hope this helps

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.

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?