20
QuizMultiple Choice

Lab: Interdependence of Organisms — Cumulative exam

Question 20 • CA-Life Science B (High School)

Which best describes the movement through the nephron?

Answer
A
Blood is passed into the nephron and removed through the urethra.
B
All materials that exit the blood into the nephron are removed in the urine.
C
Some of the materials that exit the blood can be returned to the blood.
D
High quantities of sugars and water are excreted in the urine.

Explanation

As blood is filtered in the nephron, water and small dissolved substances move into the tubule. The nephron reabsorbs useful materials, such as glucose, salts, and much of the water, returning them to the blood. Therefore, some materials that leave the blood can be returned to it; they are not all removed in urine.

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