Aerobic Respiration Flashcards
What is aerobic respiration?
Aerobic respiration is the process of producing cellular energy in the presence of oxygen.
True or False: Aerobic respiration occurs in all living organisms.
False
What is the main byproduct of aerobic respiration?
Carbon dioxide and water.
Fill in the blank: The overall equation for aerobic respiration is ________ + ________ → ________ + ________ + ________.
Glucose + Oxygen → Carbon Dioxide + Water + Energy (ATP)
Name the three main stages of aerobic respiration.
Glycolysis, Krebs cycle, and Electron Transport Chain.
What occurs during glycolysis?
Glucose is broken down into pyruvate, producing a small amount of ATP and NADH.
True or False: The Krebs cycle occurs in the cytoplasm of the cell.
False
What is the primary function of the Krebs cycle?
To generate electron carriers (NADH and FADH2) for the electron transport chain.
Multiple Choice: Where does the Electron Transport Chain take place?
A) Mitochondrial inner membrane
What role do NADH and FADH2 play in aerobic respiration?
They are electron carriers that transport electrons to the Electron Transport Chain.
True or False: Aerobic respiration produces more ATP than anaerobic respiration.
True
What is the total yield of ATP from one molecule of glucose during aerobic respiration?
Approximately 30-32 ATP molecules.
Fill in the blank: Oxygen serves as the final ________ in the electron transport chain.
Electron acceptor
What happens to pyruvate in the presence of oxygen?
It is converted into acetyl-CoA and enters the Krebs cycle.
Name one advantage of aerobic respiration over anaerobic respiration.
Higher energy yield (more ATP production).
Multiple Choice: Which of the following is NOT a product of aerobic respiration?
C) Lactic acid
What is the role of ATP in cells?
ATP serves as the primary energy currency of the cell.
True or False: Aerobic respiration can occur without oxygen.
False
What is the significance of the proton gradient in the Electron Transport Chain?
It drives the synthesis of ATP through ATP synthase.
Fill in the blank: The process of converting glucose into pyruvate is called ________.
Glycolysis
Name the gas produced as a waste product during aerobic respiration.
Carbon dioxide.
What molecule is regenerated during the Krebs cycle that is essential for glycolysis?
Oxaloacetate.
True or False: The Electron Transport Chain produces ATP directly.
False
What is oxidative phosphorylation?
The process of ATP generation that occurs in the Electron Transport Chain using the energy released from electrons.
