Domanda del libro di testo
Write a single sentence, using no more than 25 words, to summarize each of the following cellular processes:
Osmosis
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2. Cell Chemistry & Cell Components
Osmosis
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What is the osmolarity of the filtrate at the end of the proximal tubule?
A
600 mOsm/L
B
1200 mOsm/L
C
100 mOsm/L
D
300 mOsm/L
Guida verificata passo dopo passo1
Understand that osmolarity refers to the concentration of solute particles in a solution, measured in milliosmoles per liter (mOsm/L).
Recognize that the proximal tubule is part of the nephron in the kidney, where reabsorption of water, ions, and nutrients occurs.
Recall that in the proximal tubule, approximately 65% of the filtrate is reabsorbed, including water and solutes, which helps maintain the osmolarity of the filtrate.
Note that the osmolarity of the filtrate at the end of the proximal tubule is typically isosmotic with blood plasma, which is around 300 mOsm/L.
Conclude that despite the reabsorption processes, the osmolarity remains relatively constant at the end of the proximal tubule due to the proportional reabsorption of solutes and water.
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