Loop of Henle Answer Key Dispute: Is this statement actually wrong?
The key implies statement (c) is factually incorrect. However, statement (c) is a broad structural fact: both Na^+ and water are reabsorbed within the anatomical boundaries of the Loop of Henle.
Descending limb: Reabsorbs water.
Ascending limb: Reabsorbs Na^+.
Because both limbs are integral components of Henle's loop, saying these processes take place in the loop is factually undeniable. The statement doesn't claim they happen in the same limb simultaneously; it just names the macro-structure.
The NCERT Evidence (Class XI, Chapter 16)
Under the single, unified header "Henle's Loop", the textbook states:
"The descending limb of loop of Henle is permeable to water... The ascending limb is impermeable to water but allows transport of electrolytes [like Na^+] actively or passively."
Conclusion
Since the textbook explicitly places both events under the umbrella of "Henle's Loop", statement (c) is scientifically true. Option 4 (which includes a, b, and c) should be awarded full marks.
What do you guys think? Is this too pedantic, or do I have a solid case?
I am trying to submit an objection for a provisional answer key challenge, but the portal has been repeatedly crashing and displaying a "please try again later" error since yesterday. With the final deadline arriving on the 28th, I need some advice. Is anyone else facing this issue, and are there any known workarounds (like specific browsers, incognito mode, or off-peak timings) to get the submission through?
For reference teachers opinion