16. A human nephron A. is one of the two kidneys B. is the functional excretory unit C....

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Biology

16. A human nephron
A. is one of the two kidneys
B. is the functional excretory unit
C. is about the size of your fist
D. all of the above

17. The proximal convoluted tubule
A. is lined by microvilli
B. excrete salt ions of sodium and potassium
C. secretes unneeded proteins
D. absorbs organic acids

18. Urine entering the collecting duct
A. will have salt added as it descends
B. will have urea added as it descends
C. will have water added as it descends
D. none of the above

19. The multiplier effect
A. increases the salt concentration of the cortex
B. decreases the salt concentration of the urine
C. is due to the absorption of salt into the urine
D. none of the above

20. Alcohol and caffeine increase urine volume by
A. decreasing blood pressure and increasing ADH production
B. increasing blood pressure and decreasing ADH production
C. increasing blood pressure and increasing ADH production
D. decreasing blood pressure and decreasing ADH production

Answer & Explanation Solved by verified expert

4.2 Ratings (775 Votes)

16 B is the functional excretory unit Human Kidney lie on the either side of the spine in the retroperitoneal space They are roughly the size of our fist There are about 13 million nephrons in each kidney Nephron See Answer

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