21. Which of the following bonds will be most difficult to break? (a) C-O (b) C-C...

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21. Which of the following bonds will be most difficult to break? (a) C-O (b) C-C (c) C-N (d) C-S 22. A solution of 1% (w/v) starch at pH 6.7 is digested by 15 g of -amylase (mol wt 152,000). The rate of maltose (mol wt 342) had a maximal initial velocity of 8.5 mg formed per min. The turnover number is (a) 0.25 x 10 min" (c) 2.5 x 10 min = (b) 25 x 10 min (d) 2.5 x 10 min 21. Which of the following bonds will be most difficult to break? (a) C-O (b) C-C (c) C-N (d) C-S 22. A solution of 1% (w/v) starch at pH 6.7 is digested by 15 g of -amylase (mol wt 152,000). The rate of maltose (mol wt 342) had a maximal initial velocity of 8.5 mg formed per min. The turnover number is (a) 0.25 x 10 min" (c) 2.5 x 10 min = (b) 25 x 10 min (d) 2.5 x 10 min