Fill in the gaps: (a) Fill in the blanks Ascending limb of Henle’s loop is ____________to water whereas the descending limb is_________ __to it. (b) Fill in the blanks Reabsorption of water from distal parts of the tubules is facilitated by hormone____________. (c) Fill in the blanks Dialysis fluid contains all the constituents as in plasma except ________. (d) Fill in the blanks A healthy adult human excretes (on an average) _______ gm of urea/day.