Cov tawv nqaij nqus cov as-ham ntawm lub ntiaj teb sab nraud hauv peb txoj kev.

Cov as-ham dhau los ntawm cell membrane thiab nkag rau hauv pob txhaa los tsim cov hlwb;
Ib tug me me ntawm cov molecules loj thiab cov tshuaj soluble hauv dej tuaj yeem nqus tau los ntawm cov hws thiab hws cov;
Ib qho me me ntawm cov zaub mov ntawm cov zaub mov rau hauv daim tawv nqaij los ntawm qhov chaw cell.
Yog li, qhov tseeb, feem ntau ntawm cov nqus ntawm cov khoom tu tawv nqaij hauv cov plaub hau tsim los ntawm kev tsim cov plaub hau. Qhov tseeb, thaum cov tawv nqaij sib ntsib cov tshuaj uas muaj teeb meem, nws kaw cov pores.
Hauv ntej, koj tus phooj ywg daim tawv yog qhov tseem ceeb ua koj lub siab thiab raum. Raws li ib qho ntawm yim lub hlwb tseem ceeb ntawm tib neeg lub cev, nws yuav tsum tau ntsuas. Yog tias koj siv cov khoom lag luam tawv nqaij tsis tu ncua, qhov no txaus ntshai heev.