AP EAMCET Medical 24 Sep 2020 Shift 2 Paper

Which of the following statement is /are correct ?
i. Re-absoiption of water occurs passively in the initial segment of nephron.
ii. Nitrogenous wastes are absorbed by passive transport
iii. Conditional re-absorption of Na+ and water takes place in DCT.
iv.DCT re-absorbs HCO3
V.DCT is capable of selective secretion of H+ , K+ and NH3 to maintain pH and Na+ - K balance in blood
vi. Substances lrke glucose, amino acids Na+. etc,, in the filtrate are re-absorbed actively