Im pretty sure its a. scientific theory
<em>In the inner medulla, urea recirculates, creating a greater osmotic gradient. It follows the concentration gradient formed by ADH-sensitive water reabsorption into the interstitial space from the collecting duct. The remaining water is drawn from the descending structures by increased interstitial osmolarity. </em>
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<em>To maintain the vertical osmotic gradient, the blood supply to the renal medulla serves as a countercurrent exchanger. - The medullary vertical osmotic gradient is maintained by the vasa recta.</em>
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<em>It enhances both water and urea permeability in the inner medullary collecting ducts, allowing urea to diffuse passively down its concentration gradient into the interstitial fluid. This contributes to the osmotic gradient and aids water absorption.</em>
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Answer:
The correct answer will be option- ATP concentrations in a cell are usually much higher than the equilibrium concentration for ATP hydrolysis
Explanation:
Adenosine Triphosphate or ATP is known as the energy currency of the cell as it provides energy during the metabolic reactions.
The study on the structure of ATP revealed that it contains ribose sugar attached with three phosphates group bonded to each other via two phosphoanhydride bonds.
The metabolic reaction usually uses Magnesium bonded ATP as Magnesium covers the negative charge of the triphosphate which allows the ATP to bind hydrophobic clefts of the active site.
The ATP also transfers the adenyl group to the nucleophile which helps generate the pyrophosphate.
Aquatic life transitioned to terrestrial life when anatomy structures began to change in ways such as fins slowly evolved into legs, gills into lungs, and instead of suction feeding they started to bite instead.