Question

multiple choice question
the process of taking back into the blood substances that had previously been removed is called ______.

filtration
permeation
dilation
reabsorption

Explanation:

• filtration: Involves separating substances, not taking them back.
• permeation: Refers to passage through a membrane, not re - uptake.
• dilation: Means widening, not related to re - absorbing substances.
• reabsorption: By definition, is the process of absorbing substances (that were previously removed) back into the blood (e.g., in the renal system, useful substances are reabsorbed back into the blood from the filtrate).

Answer:

D. reabsorption