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- Question 1 of 28
1. Question
1 point(s)Category: K/U1. Most of our nitrogen-containing waste products are a result of
CorrectIncorrect - Question 2 of 28
2. Question
1 point(s)Category: K/U2. Which one of the following is not a function of the excretory system?
CorrectIncorrect - Question 3 of 28
3. Question
1 point(s)Category: K/U3. In our bodies, the primary nitrogen-containing compound excreted by our kidneys is
CorrectIncorrect - Question 4 of 28
4. Question
1 point(s)Category: K/U4. Which of the following are functions of the kidneys?
i. to control blood pH
ii. to excrete metabolic waste
iii. to maintain a constant blood glucose level
CorrectIncorrect - Question 5 of 28
5. Question
1 point(s)Category: K/U5. Which of the following is the correct pathway for the removal of urine from the body?
CorrectIncorrect - Question 6 of 28
6. Question
1 point(s)Category: K/U6. What structure has osmoreceptors that detect high salt concentrations in the blood?
CorrectIncorrect - Question 7 of 28
7. Question
1 point(s)Category: K/U7. Which of the following describes the distal tubules?
i. site of tubular excretion
ii. site of hydrogen ion excretion
iii. active transport plays a role in urine formation
CorrectIncorrect - Question 8 of 28
8. Question
1 point(s)Category: K/U8. The filtrate formed by the nephrons in the kidney is not urine. The filtrate is first refined and concentrated by the processes of __________, which form the urine that leaves the body.
CorrectIncorrect - Question 9 of 28
9. Question
1 point(s)Category: K/U9. Which one of the following is a tube that carries urine from the kidneys to the urinary bladder?
CorrectIncorrect - Question 10 of 28
10. Question
1 point(s)Category: K/U10. The cells of which of the following structures have receptor sites for aldosterone?
CorrectIncorrect - Question 11 of 28
11. Question
1 point(s)Category: K/U11. The network of capillaries in a vertebrate kidney where water, urea, and salts are filtered out of the blood is the
CorrectIncorrect - Question 12 of 28
12. Question
1 point(s)Category: K/U12. Which of the following describes the proximal tube?
i. It is the site of tubular reabsorption.
ii. Its cells contain relatively large number of mitochondria.
iii. Glucose moves from the filtrate to the surrounding blood vessels.
CorrectIncorrect - Question 13 of 28
13. Question
1 point(s)Category: K/U13. In the nephron, the highest concentration of salt is found surrounding
CorrectIncorrect - Question 14 of 28
14. Question
1 point(s)Category: K/U14. Urine leaves the bladder through
CorrectIncorrect - Question 15 of 28
15. Question
1 point(s)Category: K/U15. By which transport process are most molecules secreted from the blood into the distal tubule
CorrectIncorrect - Question 16 of 28
16. Question
2 point(s)Category: T16. Which of the following situations would cause the release of Antidiuretic Hormone (ADH) into the bloodstream?
CorrectIncorrect - Question 17 of 28
17. Question
3 point(s)Category: T17. Which is an accurate statement about the anatomy of the human excretory system?
CorrectIncorrect - Question 18 of 28
18. Question
2 point(s)Category: T18. All of the following processes occur in the nephron of the kidney except
CorrectIncorrect - Question 19 of 28
19. Question
2 point(s)Category: T19. If sodium ion reabsorption was inhibited, this could lead to an increase in the excretion of
CorrectIncorrect - Question 20 of 28
20. Question
2 point(s)Category: T20. At a particular position along a nephron, the osmotic potential of the filtrate is 500 mosm/L while the surrounding kidney’s is 600 mosm/L. Which one of the following is a likely result?
CorrectIncorrect - Question 21 of 28
21. Question
2 point(s)Category: T21. Secretion of ADH (antidiuretic hormone) from the ______ occurs in response to _____ and causes ______.
CorrectIncorrect - Question 22 of 28
22. Question
2 point(s)Category: T22. Alcohol consumption increases urinary output because alcohol ______.
CorrectIncorrect - Question 23 of 28
23. Question
2 point(s)Category: T23. Which of the following would cause the concentration of solutes in the urine to decrease over a 12-hour period?
CorrectIncorrect - Question 24 of 28
24. Question
5 point(s)Category: C24. What conditions are responsible for the stimulation of the JGA (juxtaglomerular apparatus)?
CorrectIncorrect - Question 25 of 28
25. Question
3 point(s)Category: C25. In the diagram below, which arrow indicates the direction of a gradient of increasing solute concentration in the interstitial fluid surrounding a nephron? Which two substances are responsible for the solute concentration gradient?
CorrectIncorrect - Question 26 of 28
26. Question
8 point(s)Category: C26. Summarize the steps in urine formation using the table below.
Steps in Urine Formation Description Glomerular Filtration location: movement of molecules:
driving force:
Tubular Reabsorption location: movement of molecules:
driving force:
Tubular Secretion location: movement of molecules:
driving force:
CorrectIncorrect - Question 27 of 28
27. Question
8 point(s)Category: A27. The drug Urizadole inhibits antidiuretic hormone secretion from the pituitary gland. How will this change glomerular filtration rate, urine flow (output), and urine concentration in patients taking this medication?
CorrectIncorrect - Question 28 of 28
28. Question
6 point(s)Category: A28. You have just eaten a large number of very salty potato chips, and the osmolarity of your blood has increased. What response will your body have in order to bring your blood osmolarity back to homeostasis?
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