Why does the process of making biofuels from weeds and other plant matter require additional steps?
A)They contain a higher proportion of cellulose than corn, soy or sugarcane.
B)They contain a lower proportion of cellulose than corn, soy or sugarcane.
C)They contain a higher proportion of starch than corn, soy or sugarcane.
D)They contain a higher proportion of ethanol than corn, soy or sugarcane.
E)They contain a lower proportion of ethanol than corn, soy or sugarcane.

Question

Why does the process of making biofuels from weeds and other plant matter require additional steps?  
A)They contain a higher proportion of cellulose than corn, soy or sugarcane.
B)They contain a lower proportion of cellulose than corn, soy or sugarcane.
C)They contain a higher proportion of starch than corn, soy or sugarcane.
D)They contain a higher proportion of ethanol than corn, soy or sugarcane.
E)They contain a lower proportion of ethanol than corn, soy or sugarcane.

Quizplus · Accepted Answer

Weeds and other plant matter contain a higher proportion of cellulose which is harder to break down into simple sugars than corn, soy or sugarcane. Additional steps such as pretreatment and enzymatic hydrolysis are required to convert cellulose into biofuels.

Why Does the Process of Making Biofuels from Weeds and Other