Question

WHY HUMAN BEINGS CANNOT DIGEST WOOD?

Answer 1

Explanation:

Though it contains glucose, a vital carbohydrate, the human digestive system is not capable of breaking it down, which is one of the main reasons we can't normally eat wood. If we could, though, our food supply would increase exponentially: cellulose happens to be the most abundant organic polymer on Earth.

Answer 2

Answer:

we humans are able to produce enzymes called amylases, which break down Starch into glucose

molecules that we can use for energy, we don't have the right enzymes to break down cellulose.

however so if we eat wood, however finely ground, it will just pass through us undigested

hope it helps