1. 1.Which of the following is not belong in the
regulation of the extra cellular fluid by the
kidneys?
a. Waste product
b. Ions
c. Water
d. Sweat
2. What is the functional unit of the kidney?
a. Ureter
b. Medulla
c. Cortex
d. Nephrons
3. What part of the kidney contains the fluid-
filtering mechanisms.
a. Renal pelvis
b. Cortex
c. Nephrons
d. Venule
4. The urine formed in the kidneys passes out
into a long narrow tube called_______.
a. Bladder
b. Nephrons
c. Ureter
d. Urethra
5. It is a sac of smooth muscle that can hold 400
to 500 ml of urine.

2. a. Bladder
b. Ureter
c. Urethra
d. Cortex
6. Blood enters a nephrons via _________
arteriole.
a. Internal
b. External
c. Renal
d. Afferent
7. Blood is filtered at the top region of the
nephron or ______.
a. Glomerulus
b. Medulla
c. Collecting duct
d. Distal tubule
8. Most water is reabsorbed in the ________
tubule.
a. Proximal
b. Distal
c. Efferent
d. Internal
9. The renal medulla is high in _______ that to
help reabsorb H2O.
a. na₊

3. b. O2
c. CL-
d. CO2
10. Which hormone causes the kidney to
reabsorb water?
a. Insulin
b. Antidiuretic
c. Somatotropic
d. Thyroxin
Answer key
1. D
2. D
3. B
4. C
5. A
6. D
7. A
8. A
9. A
10. B

4. sir ito na po ung akin..
pexenxa na po late...
maria angelica y cervantes
bse-bio 4a
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