Excretory Products And Their Elimination Class 11 Pdf Ncert Solutions Biology Download, All Ncert Solution Class 11 To 12
(Link of Pdf File is given below at the end of the Questions list)
Define Glomerular Filtration Rate (GFR)
Explain the autoregulatory mechanism of GFR.
Indicate whether the following statements are true or false:
(a) Micturition is carried out by a reflex.
(b) ADH helps in water elimination, making the urine hypotonic.
(c) Protein-free fluid is filtered from blood plasma into the Bowman’s capsul(d) Henle’s loop plays an important role in concentrating the urine.
(e) Glucose is actively reabsorbed in the proximal convoluted tubule.
Give a brief account of the counter current mechanism.
Describe the role of liver, lungs and skin in excretion.
Match the items of column I with those of column II:
What is meant by the term osmoregulation?
Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?
What is the significance of juxtaglomerular apparatus (JGA) in kidney function?
Name the following:
(a) A chordate animal having flame cells as excretory structures
(b) Cortical portions projecting between the medullary pyramids in the human kidney
(c) A loop of capillary running parallel to the Henle’s loop.
Fill in the gaps:
(a) Ascending limb of Henle’s loop is ____________to water whereas the descending limb is___________to it.
(b) Reabsorption of water from distal parts of the tubules is facilitated by hormone____________.
(c) Dialysis fluid contains all the constituents as in plasma except ________.
(d) A healthy adult human excretes (on an average) _______ gm of urea/day.
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