Differentiate aerobic and fermentation

How many ATP are produced in aerobic respiration?

• 2

• 18

• 38

• 40

Which process requires oxygen?

• Aerobic respiration

• Fermentation

• Both

• Neither

Which is a by-product of fermentation in muscles?

• Oxygen

• Lactic acid

• Water

• Carbon dioxide only

A marathon runner starts breathing heavily after running steadily for 20 minutes.

• Which process is dominant at the beginning of the run, and which dominates toward the end?

• Start = fermentation; End = aerobic

• Start = fermentation; End = fermentation

• Start = aerobic;

  End = fermentation

• Start = aerobic;

  End = aerobic

A sprinter runs a 100-meter dash in 10 seconds.

• Which energy process is mainly used by their muscle cells?

• Aerobic respiration

• Fermentation

• Photosynthesis

• Krebs cycle only