FaqKids.com

="answers
Q:
Why can't humans eat grass?
A:

Cows can eat grass, so why can’t we? Well, plant cells contain something called cellulose. Chemically, it’s almost identical to a lot of the carbohydrate molcules (like glucose and fructose) in the food we eat. But cellulose has one bond that’s different, and we can’t break that bond to get the energy out of the cellulose the way we get it from other molecules. So we could eat grass, but we wouldn’t be able to digest it to get the energy we need. Cows and other mammals can eat grass because they have special bacteria living in their stomachs called symbiont bacteria. These symbionts can break the bond in cellulose for the animal its living in. That way cows can get energy from grass. We don’t have any of these symbiont bacteria, so we can’t digest the cellulose in grass.

related questions

Share This Site

Word of the Day

coze:
coze: a friendly talk; a chat.

Born on this day

March 28, 2017

1660 - King George I
1868 - Maxim Gorky
1891 - Paul Whiteman
1902 - Dame Flora Robson
1919 - Tony Bartley
1921 - Sir Dirk Bogarde
1935 - Michael Parkinson
1942 - Neil Kinnock
1943 - Sir Robert Eyre
1943 - Richard Stilgoe
1948 - Matthew Corbett
1968 - Nasser Hussain
www.Bridal-Shower-Games.com |Baby Shower Games | www.TwitterBackgrounds.org