Cellular Respiration

Question 1

cellular respiration

Answer 1

• cell get energy w breakdown of glucose
• C6H12O6 + 6O2 = 6CO2 + 6H2O + energy
  = glucose + o2 = co2 +water + energy

Question 2

1st step in cellular respiration

Answer 2

• breakdown of glucose (glycolysis)
• conversion of glucose -> pyruvate
• net total: 2 ATP, 2 pyruvate, 2 NADH (nicotinamide adenine dinucleotide)

Question 3

2nd step in cellular respiration

Answer 3

• Krebs cycle or citric acid cycle
• aerobic (need oxygen)
• pyruvate -> mitochondrion
• net total: 2 ATP, 6CO2, 6NADH, 1 FADH2

Question 4

3rd step in cellular respiration

Answer 4

• electron transport chain
• aerobic
• oxidation of NADH -> oxygen + water
• net total: ATP = 32-26 each glucose consumed

Question 5

what is fermentation?

Answer 5

• when no oxygen exists
• produce alcohol, lactic acid
• release CO2

Question 6

where does cellular respiration take place?

Answer 6

• mitochondria