Question

The Atlantic cod is a common fish of the Atlantic Ocean that must drink seawater to meet its water needs. Explain how active transport helps the Atlantic cod maintain homeostasis with regard to the balance of sodium and chlorine ions, which are abundant in seawater.

Answer 1

Answer:

The method used by Atlantic cod to maintain homeostasis is discussed below.

Explanation:

Active transport is the movement of molecules from an area of lower concentration to an area of higher concentration against the concentration gradient.

The Atlantic cod would drink seawater to meet its water needs. But as this water will contain excess amounts of sodium and chlorine ions, the Atlantic cod will use the mechanism of active transport to move the sodium and chlorine atoms from its body. Due to active transport,the excess salt atoms will pass on again into the water. Unlike diffusion, energy is used for the process of active transport to occur.