Question

why does nutrient - rich blood of the hepatic portal vein pass first through the liver before this blood is returned to the heart? multiple choice this allows the liver to add more nutrients to the blood. this allows the liver to store or modify the nutrients. the liver needs more nourishment than other tissues; hence nutrients first pass through the liver. this allows the liver to add more waste products to the blood.

Explanation:

The liver's functions include storing nutrients like glycogen and modifying nutrients through metabolic processes. It doesn't primarily add more nutrients to the blood, nor does it need more nourishment than other tissues in the context of this blood - flow pattern. And it doesn't add more waste products to the blood in this process.

Answer:

This allows the liver to store or modify the nutrients.