Grade 12 Renal System Worksheet
A comprehensive worksheet for Grade 12 Biology students covering the structure and function of the human renal system, including filtration, reabsorption, and excretion.
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Grade 12 Renal System Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is NOT a primary function of the renal system?
Regulation of blood pH
Production of digestive enzymes
Excretion of metabolic wastes
Regulation of blood volume
2. The functional unit of the kidney is the:
Renal artery
Nephron
Ureter
Urinary bladder
3. The process by which substances are removed from the blood and enter the Bowman's capsule is called .
4. The hormone responsible for increasing water reabsorption in the collecting duct is .
5. Briefly explain the role of the glomerulus in urine formation.
6. Describe two mechanisms by which the kidneys maintain acid-base balance in the body.
7. Label the indicated parts of the human kidney cross-section below:
A:
B:
C:
D:
8. The reabsorption of glucose occurs primarily in the loop of Henle.
True
False
9. Antidiuretic hormone (ADH) increases the permeability of the collecting ducts to water.
True
False
Match the part of the nephron with its primary function.
10. Bowman's Capsule
a. Water reabsorption
11. Proximal Convoluted Tubule
b. Filtration of blood
12. Loop of Henle
c. Secretion of ions and waste
13. Distal Convoluted Tubule
d. Reabsorption of most solutes and water
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