Which of the following statements about enzymes is not true.?
a. enzymes are consumed during chemical reactions
b. enzymes decreases the free energy of activation of specific reactons
c. enzymes increase chemical reaction rates
d. enzymes have unique ph and temperature optima

Statetment A is the one which is not true. The enzymes are not consumed during reactions

Explanation:

Its function is to accelerate chemical reactions without modifying, which means that it can be used, again and again.

Enzymes always accelerate the reaction until equilibrium is reached and can be so efficient that the speed of the reaction is faster without the presence of the catalyst. They are specific since they always act on a certain substrate. Beyond the optimum temperatures and the pH the enzyme may not work, it becomes denatured since it loses the spatial structure and with it its function.

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.

there's no big difference.

explanation:

the only little different between a rabbit and bunny is just that bunnies are much smaller than rabbits. bunnies are basically baby rabbits.