In general, the substances in the filtrate that need to be conserved are selectively reabsorbed whereas the unwanted substances that need to be eliminated fail to be reabsorbed.

Question

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This statement is true. The process of reabsorption involves selectively moving substances from the filtrate in the renal tubules back into the bloodstream, in order to conserve important substances such as water, glucose, and electrolytes. Unwanted substances, such as excess ions or metabolic wastes, may be left in the filtrate and ultimately eliminated as urine.

In General, the Substances in the Filtrate That Need to Be