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Questions and Answers
Which of the following best describes cellular respiration?
Which of the following best describes cellular respiration?
- The process of converting ATP into nutrients
- The process of converting nutrients into ATP (correct)
- The process of breaking down ATP into nutrients
- The process of releasing waste products from cells
What is the role of oxygen in cellular respiration?
What is the role of oxygen in cellular respiration?
- To release waste products from cells
- To break down ATP into nutrients
- To convert nutrients into ATP
- To act as an inorganic electron acceptor (correct)
What type of reactions are involved in cellular respiration?
What type of reactions are involved in cellular respiration?
- Neutralization reactions
- Catabolic reactions (correct)
- Combustion reactions
- Anabolic reactions
What is the main purpose of cellular respiration in a cell?
What is the main purpose of cellular respiration in a cell?
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What is the overall nature of cellular respiration?
What is the overall nature of cellular respiration?
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Study Notes
Cellular Respiration
- Cellular respiration is the process by which cells break down glucose (a sugar) to release energy in the form of ATP (adenosine triphosphate)
- It is a series of chemical reactions that occur in the cytoplasm and mitochondria of cells.
Oxygen in Cellular Respiration
- Oxygen acts as the final electron acceptor in the electron transport chain, the final stage of cellular respiration.
- This process produces water as a byproduct and releases a significant amount of energy for ATP production.
Types of Reactions in Cellular Respiration
- Cellular respiration involves a series of both catabolic and anabolic reactions.
- Catabolic reactions break down complex molecules, such as glucose, into simpler molecules.
- Anabolic reactions use the released energy to build or synthesize complex molecules, such as ATP.
Purpose of Cellular Respiration (in a cell)
- The main purpose of cellular respiration is to generate ATP, the primary energy currency of cells.
- ATP is used for various cellular processes, including muscle contraction, protein synthesis, and active transport.
Nature of Cellular Respiration
- Cellular respiration is an oxidative process - it involves the oxidation of glucose and the reduction of oxygen.
- Cellular respiration is also an exothermic reaction, as it releases energy into the surroundings.
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