Indastering, tsela e khethehileng ea metabolic ea libaktheria tsa indasteri e sebelisoa ho nkela liphetoho tse ling tsa lik'hemik'hale. Ntle le ntlafatso ea ho khetheha, e boetse e boloka matla tlas'a mocheso o tloaelehileng le khatello. E boetse e bitsoa indasteri e tala ka lebaka la ho khetheha ha eona le palo e tlaase ea litšila.