(a) Ascending limb of Henle’s loop is impermeable to water, whereas the descending limb is permeable to it.
(b) Reabsorption of water from distal parts of the tubules is facilitated by the hormone vasopressin.
(c) Dialysis fluid contains all the constituents as in plasma, except the nitrogenous wastes.
(d) A healthy adult human excretes (on an average) 25-30 gm of urea/day.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
(a) Ascending limb of Henle’s loop is impermeable to water, whereas the descending limb is permeable to it.
(b) Reabsorption of water from distal parts of the tubules is facilitated by the hormone vasopressin.
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Step-by-step explanation:
• (a) Ascending limb of Henle’s loop is impermeable to water, whereas the descending limb is permeable to it
•
•
• (b) Reabsorption of water from distal parts of the tubules is facilitated by the hormone vasopressin
•
This question is important because it tests key concepts from the NCERT syllabus and is frequently asked in CBSE exams.
This question is based on core NCERT concepts explained in the chapter and should be revised thoroughly before exams.
Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.
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