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Flashcards on Cellular Respiration
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What is cellular respiration?
Cellular respiration is the process by which cells convert glucose into usable energy in the form of ATP.
What is the main purpose of cellular respiration?
The main purpose of cellular respiration is to produce ATP, the energy currency of cells.
What are the three main stages of cellular respiration?
The three main stages of cellular respiration are glycolysis, the Krebs cycle (or citric acid cycle), and the electron transport chain.
Where does glycolysis occur in a cell?
Glycolysis occurs in the cytoplasm of the cell.
What is the final electron acceptor in the electron transport chain?
The final electron acceptor in the electron transport chain is oxygen.
What molecule is produced as a byproduct of the Krebs cycle?
The molecule produced as a byproduct of the Krebs cycle is carbon dioxide (CO2).
Which stage of cellular respiration produces the most ATP?
The electron transport chain produces the most ATP during cellular respiration.
What type of organisms perform cellular respiration?
All living organisms, including plants, animals, and microorganisms, perform cellular respiration.
What is the net gain of ATP molecules produced during glycolysis?
The net gain of ATP molecules produced during glycolysis is 2 ATP molecules.
During which stage of cellular respiration is carbon dioxide released?
Carbon dioxide is released during the Krebs cycle.
What happens to the energy stored in glucose during cellular respiration?
The energy stored in glucose is converted into ATP through the process of cellular respiration.
What is the role of NADH in cellular respiration?
NADH carries electrons to the electron transport chain, where they are used to generate ATP.
What is the equation for cellular respiration?
The equation for cellular respiration is: C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
What are the two types of cellular respiration?
The two types of cellular respiration are aerobic respiration (with oxygen) and anaerobic respiration (without oxygen).
What is the purpose of the Krebs cycle in cellular respiration?
The purpose of the Krebs cycle is to generate energy-rich molecules, including NADH and FADH2, for the electron transport chain.
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Test Your Knowledge
Which stage of cellular respiration produces the most ATP?
Glycolysis
Electron transport chain
Krebs cycle
None of the above
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Where does glycolysis occur in a cell?
Mitochondria
Cytoplasm
Nucleus
Endoplasmic reticulum
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What is the net gain of ATP molecules produced during glycolysis?
2
4
6
8
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What is the main purpose of cellular respiration?
Protein synthesis
Lipid metabolism
Production of ATP
Cell division
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What is the molecule produced as a byproduct of the Krebs cycle?
Oxygen
Glucose
Carbon dioxide
Water
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What is the final electron acceptor in the electron transport chain?
NADH
FADH2
Oxygen
ATP
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What happens to the energy stored in glucose during cellular respiration?
It is converted into carbon dioxide
It is converted into ATP
It is stored as glycogen
It is excreted as waste
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What is the equation for cellular respiration?
C6H12O6 + 6O2 -> 6CO2 + 6H2O
2H2O2 -> 2H2O + O2
C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
H2O + CO2 -> O2 + glucose
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What are the two types of cellular respiration?
Aerobic and anaerobic
Aerobic and anaerobic
Photosynthesis and fermentation
Mitosis and meiosis
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What is the role of NADH in cellular respiration?
Carries electrons to the electron transport chain
Acts as a final electron acceptor
Transfers phosphate groups to ADP
Creates a proton gradient
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