science

[giltbrookian]

Which chemical element is present in all proteins.

[Father-Ted]

carbon, hydrogen, oxygen, nitrogen.

[bibblebub]

carbon, hydrogen, oxygen, nitrogen

[factor-fiction]

http://en.wikipedia.org/wiki/Protein

[bibblebub]

(that's a spooky coincidence)

[giltbrookian]

Thank you my friends.

[bigbadmarty]

Well proteins all contain at least Carbon and Hydrogen and probably a few more ( Oxygen, Nitrogen maybe ) so there's more than 1 answer to the question !

[jomifl]

All proteins contain the elements listed in the first 2 posts. Some contain additional elements such as iron, copper, magnesium and phosphorus and quite a few more.