Question

man cannot digest cellulose fibres pesent in the food why?

Answer 1

Explanation:

because the food pipe is small as we have small bits of power and then can cause lungs disease and liver disease also

Answer 2

Hii

Here is your answer -

Human cannot digest cellulose present in the food because the human digestive system doesn’t secrete any enzymes which digest cellulose.

Explanation:

The following are the enzymes secreted by digestive system of human and their functions:

• Proteolytic enzyme which converts protein into amino acids.
• Salivary amylase which digests starch present in the food.
• Lipase converts the fats into diglycerides.
• Nucleases convert nucleic acid into nucleotides.
• Carboxy peptidases convert peptones to dipeptides.