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? ?, 0; 1; 2; 3; 2 b. 2; 2; 0; 0;0 c. 0; 0; 0; 0;0 d. 2; 2; 2;, 0; 0 36. A molecule greater than nephrons kilodaltons cannot pass through the a. 6.5 b. 9 c. 9.5 d. 12.5 a. passive secretion b. active secretion c. passive absorption d. active absorption

Explanation / Answer

35) The filterate in bowman's capsule is blood plasma minus proteins. So filterate contains glucose. Then it is transferred to proximal convoluted tubule where 98 % absorption takes place here.

Rest 2% occurs in distal convoluted tubule which is almost negligible as compared to 98%.

Answer: b)

37. d) active absorption

Malphighian tubule are bathed in blood of insect, in order to maintain a pressure Potassium ions are actively transportated from blood to tubule cavity. Now note that we are talking in respect to tubules, so anything coming into the tubule is absorption  

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