Compared to the normal plasma osmolarity, the tubular fluid is as it enters Bowman's space, at the beginning of the loop of Henle, at the tip of the loop, and at the beginning of the distal convoluted tubule. a. isosmotic; hyperosmotic; hyperosmotic; isosmoticb. isosmotic; isosmotic; hypoosmotic; hypoosmoticc. isosmotic; isosmotic; hyperosmotic; hypoosmoticd. isosmotic; isosmotic; hypoosmotic; hyperosmotice. isosmotic; isosmotic; hyperosmotic; isosmotic

isosmotic; isosmotic; hyperosmotic; hypoosmotic.

Explanation:

The osmotic pressure is important for the flow of molecules in the different compartments of the different organs of the body. The osmosis process is energy independent process that transfers the molecules along the concentration gradient through the semi permeable membrane.

The plasma and tubular fluid are isoosmotic with each other means they have same osmotic pressure when it enters the Bowman's capsule that maintain their osmolarity. The fluid still remains isoosmotic when enters at the beginning of loop of Henle. The fluid then becomes hyperosmotic because it shows a large amount of difference between the solutes as compared with the plasma fluid and contains large amount of ions at the tip of Loop of Henle. The fluid then become hypoosmotic because now it contains few solutes as compared with the plasma at the deginning of the distal convoluted tubule. This osmolarity difference helps in the production of urine.

Thus, the correct answer is (c).

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