Concentrations of lignin from wood pulp samples can be determined both by non-invasive and invasive methods.

【单选题】四种生物化学组分遭受生物降解,正确的遭受降解顺序从易到难是: A: Proteins先降解,Carbohydrates其次,Lipids难降解,Lignin最难降解 B: Proteins最难降解,Carbohydrates难降解,Lipids容易降解,Lignin最容易降解。

which of the following is irrelevant to protein bioavailability( ) A: amino acid composition B: protein conformation C: Lignin and proteases D: Millard reactions

木材细胞木质化的过程是木质素逐渐积累的过程，木质素的英文为（）。 A: cellulose B: pectin C: lignin D: starch