Cellular Respiration

What is the first step of cellular respiration?

• Photosynthesis

• Krebs cycle

• Glycolysis

• Fermentation

Where does the Krebs cycle take place in the cell?

• The Krebs cycle takes place in the cell membrane.

• The Krebs cycle takes place in the mitochondria of the cell.

• The Krebs cycle takes place in the nucleus of the cell.

• The Krebs cycle takes place in the cytoplasm of the cell.

What is the final electron acceptor in the electron transport chain?

• Glucose

• Hydrogen

• Carbon dioxide

• Oxygen

How many ATP molecules are produced in aerobic respiration?

• 50-55 ATP molecules

• 36-38 ATP molecules

• 20-25 ATP molecules

• 10-12 ATP molecules

What is the end product of anaerobic respiration in animal cells?

• Water

• Glucose

• Carbon dioxide

• Lactic acid

What is the net gain of ATP molecules in glycolysis?

• 2 ATP molecules

• 0 ATP molecules

• 10 ATP molecules

• 5 ATP molecules

Which molecule carries high-energy electrons to the electron transport chain?

• Glucose

• Water

• ATP

• NADH or FADH2

What is the overall chemical equation for cellular respiration?

• 6CO2 + 6H2O + light energy -> C6H12O6 + 6O2

• 2H2O + 2NADPH + 3ADP + 3Pi -> O2 + 2NADP+ + 3ATP

• C6H12O6 + 6O2 -> 6CO2 + 6H2O + NADPH

• The overall chemical equation for cellular respiration is C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP

What is the purpose of cellular respiration in the cell?

• The purpose of cellular respiration in the cell is to convert sunlight into energy

• The purpose of cellular respiration in the cell is to produce oxygen for the body

• The purpose of cellular respiration in the cell is to break down water into hydrogen and oxygen

• The purpose of cellular respiration in the cell is to produce energy in the form of ATP (adenosine triphosphate) by breaking down glucose and other organic molecules.