Describe the five steps in the current process of ethanol production from cellulosic plant material

What will be an ideal response?


1 . grinding of the plant material
2 . acid, pressure, and heat treatment to break linkages between lignin, cellulose, and hemicellulose; this step also degrades hemicellulose into a mixture of simple five carbon and six carbon sugars (xylose)
3 . cellulase conversion of the liberated cellulose to glucose
4 . fermentation to produce ethanol: glucose from cellulose by yeast to produce ethanol; xylose from hemicellulose by bacteria to produce ethanol
5 . distillation and concentration of the ethanol

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A fair coin is tossed five times. Which sequence is more likely, HTTHH or HHHHH? Or are they equally likely? Explain.

What will be an ideal response?

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The chemical formula for nitrous oxide is ____________________

Fill in the blank(s) with the appropriate word(s).

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Combination fittings can be used _____

Fill in the blank(s) with the appropriate word (s).

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A simple way to convert parallel to serial data is to use ________

A) a FIFO memory B) a binary to hexadecimal converter C) a full-adder D) a parallel in serial out shift register

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