Question

1. why is cellulose considered

oughage\ in our diets?

Explanation:

Cellulose is a complex carbohydrate. Humans lack the enzymes (cellulase) to break it down. So, it passes through the digestive system largely undigested. As it moves through, it adds bulk to the feces, helps in peristalsis (smooth muscle contractions in the digestive tract), and prevents constipation. This "bulky" and indigestible nature in the human digestive context is why it is called "roughage".

Answer:

Cellulose is called "roughage" in our diets because humans lack the enzyme (cellulase) to digest it. It passes through the digestive system undigested, adding bulk to feces and aiding in peristalsis (intestinal muscle contractions), which helps in smooth bowel movement and prevents constipation.