Urine consists of about __________ percent water and __________ percent solutes.
a. 100;0
b. 95;5
c. 90; 10
d. 50; 50
Introduction :
The function of the excretory system is to remove the waste of the body. It maintains the chemical composition of the body fluids by removing the unwanted components and maintaining the level of water and electrolytes in the body. Moreover, the level of water in the body is maintained by the excretory system.
Answer to Problem 1PL
Correct answer :
Option (b), 95, 5.
Explanation of Solution
Explanation/justification for the correct answer :
Option (b) is 95, 5. Urine is composed of 95% water approximately, and the rest 5% is composed of solutes, such as, sodium, urea, potassium, chloride, and creatinine. Hence, this option is correct.
Explanation for incorrect answer :
Option (a) is 100, 0. Urine is composed of 95 percent water and 5 percent solutes. Hence, this option is incorrect.
Option (c) is 90, 10. Urine is composed of 95 percent water and 5 percent solutes. Hence, this option is incorrect.
Option (d) is 50, 50. Urine is composed of 95 percent water and 5 percent solutes. Hence, this option is incorrect.
Option (b), 95, 5.
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Chapter 58 Solutions
Laboratory Manual For Human Anatomy & Physiology
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