2. What trouble did Minteer and Klotzhach have in their research?</p>A They had trouble keeping enzymes in fuel cells active.
. v8 B. q |! G, wB They had trouble keeping biological cells active.
" L' e# Q6 c6 p: S. bC They had trouble producing fresh enzymes.
& G- g4 c( C' X2 ^& x& m' nD They had trouble finding mechanism for producing enzymes.
* l; W4 Z2 Z# L5 z3. According to Paragraph 5,electrons are released
" e7 R3 I; n$ _; }A when bags of enzyme are embedded in the new fuel cell.
$ x I! R3 _) TB when glucose from a sugary liquid goes through the enzyme.+ E; f8 A+ _/ i2 `/ b
C when the enzyme oxidizes the glucose from a sugary liquid that goes through
9 {6 w# j- q1 }, a, e+ |a pocket.
/ n. I" p$ S( C5 VD when the enzyme oxidizes the sugary liquid that goes through a pocket.- w* M" ?1 l: [
4. What is exciting about the new fuel cells?
" g4 E& U0 t: z, o8 O# B5 J: xA Their limitless power generation capacity is amazing. d3 i+ S4 K% U B9 I9 U' U
B Their limited power generation capacity is a good beginning.
5 J, e; R' C0 K! }C Their limited power generation capacity is the result of great efforts.
, r. B, t7 V6 |6 \7 m6 `D Their limitless power generation capacity is a major accomplishment, |