Bio 9.3 Short Answers

Why do runners breathe heavily after a sprint race?

When the race is over, the only way to get rid of lactic acid is through a chemical pathway that requires extra oxygen.

List the body's sources of energy in the order in which they are used during a long-distance race.

ATP already in muscles, ATP made by lactic acid fermentation, and ATP produced by cellular respiration

How are alcoholic fermentation and lactic acid fermentation similar? How are they different?

Both forms provide energy to the cell in the absence of oxygen, and both produce NAD+. They are different in that alcoholic fermentation produces alcohol and lactic acid fermentation produces lactic acid.

Name the two types of fermentation.

alcoholic fermentation and lactic acid fermentation