Which is a product of the krebs cycle?
a. pyruvate
b. nad
c. acetyl coa
d. fadh2

The correct answer is D FADH2

Explanation:

Krebs cycle is one of most important step of aerobic respiration.Pyruvate the end product of glycolysis is converted into acetyl CoA which then reacts with oxalo acetate to begins the TCA cycle .

     According to the question the product of krebs cycle is FADH2 which formed from FAD during the conversion of succinate to fumarate by the catalytic activity of succinate dehydrogenase enzyme.

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.