35. Which values reflect the expected glucose concentrations (in mM) in samples

Question

35. Which values reflect the expected glucose concentrations (in mM) in samples collected from different regions of the nephron in the following order: Bowman's capsule, beginning of proximal convoluted tubule, intermediate segment, middle of distal convoluted tubule, and beginning of collecting duct? a. 0; 1; 2; 3; 2 b. 2; 2; 0; 0; 0 c. 0; 0; 0; 0; 0 d.222; 0; 0 36. A molecule greater than nephrons kilodaltons cannot pass through the a. 6.5 b. 9 C. 9.5 d. 12.5 37. In insects, primary urine of formed by the..of KCI a. passive secretion b. active secretion c. passive absorption d. active absorption

Explanation / Answer

35)The answer is b,2,2,0,0,0

The filtration begins from glomerular capillaries into bowman capsules.The filtrate has same concentartion of low molecular weighed organic solutes like glucose as in the plasma.The part of the nephron with increased concentartion of glucose is bowman capsule.The filtrate pass to proximal convolutery tubules lumen and reabsorbed 100% in here and transported to the interstitial space.The glucose carrier proteins are present at PCT region of nephrone and secondary active transport takes place.

36)The molecule greater than 12.5 kilodalton cannot pass through the nephron.

37)Active secretion -Most of the insects depends on the diet rich in potassium thus the upper maiphigian tubules of the insect excretory system secretes a liquid consisting of equimolar concentartion od NaCl and KCl.Potassium and chloride are then reabsorbed as the solution of bicarbonate proximal tubules resulting in removal of hypo-osmotic urine.

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