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love history [14]
3 years ago
6

two runners were competing to see who could run with a greater average speed. Runner A ran 12 miles in 3 hours. Runner B ran 9 m

iles in 2 hours. Which runner ran with a greater average speed
Biology
1 answer:
zubka84 [21]3 years ago
5 0
Runner B took about 13.3 mins per mile while Runner A took about 15 mins per mile so runner be ran faster
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A decrease in pH is too acidic compared to optimum pH for amylase activity. The hydrogen ion changes amylase sites of activity and amylase activity become low. At pH 13 to 1 which is acidic, reduces the activity of amylase because the hydrogen ion changes amylase activity sites and render it's action low which will denatures amylase and make it ineffective.

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Amylase refer to enzymes that catalyses or breakdown starch into sugars. General, enzymes are biological substances that speed up the rate of chemical reactions.

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