Ncha

Ncha bu nnu nke abụba acid eji eme ihe n'ọtụtụ ìhè nhicha ná mmanụ. N'ime ụlọ, ncha bụ ihe na-eme n'elu mmiri nke a na-ejikarị asa, ịsa ahụ, na ụdị ụlọ ndị ọzọ. Na ntọala ụlọ ọrụ mmepụta ihe, a na-eji ncha eme ihe dị ka ihe na-eme ka ọ sie ike, ihe ndị mejupụtara mmanụ ụfọdụ, na ihe na-ebute ihe na-akpali akpali.

Mgbe ejiri ya mee ihe maka ihicha, ncha na-eme ka ụmụ irighiri ihe na grime, nke a nwere ike ikewapụ na ihe a na-ehicha. N'ịsa aka, dị ka ihe na-eme n'elu mmiri, mgbe a na-etinye obere mmiri, ncha na-egbu microorganisms site na ịmegharị membrane lipid bilayer ha na imebi protein ha.  
Category:Articles with unsourced statements from September 2023
[citation needed] Ọ na-emulsifying mmanụ, na-eme ka mmiri na-agba ọsọ buru ha.

 na-emepụta ncha site na ịgwakọta abụba na mmanụ na ntọala. Ụmụ mmadụ ejirila ncha mee ihe ruo ọtụtụ puku afọ; ihe akaebe dị maka mmepụta nke ihe ndị yiri ncha na Babilọn oge ochie n'ihe dị ka 2800 BC.