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Questions and Answers
What is the primary function of cellular respiration?
What is the primary function of cellular respiration?
Where does glycolysis occur within a cell?
Where does glycolysis occur within a cell?
What is produced during anaerobic respiration in humans?
What is produced during anaerobic respiration in humans?
What major molecule is created as a result of the Electron Transport Chain?
What major molecule is created as a result of the Electron Transport Chain?
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Which component is essential for aerobic respiration?
Which component is essential for aerobic respiration?
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What is the product of the Kreb's Cycle?
What is the product of the Kreb's Cycle?
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What does ATP stand for?
What does ATP stand for?
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During exercise, if the body cannot supply enough oxygen, which process occurs?
During exercise, if the body cannot supply enough oxygen, which process occurs?
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In the context of cellular respiration, where do hydrogens go after the Kreb's Cycle?
In the context of cellular respiration, where do hydrogens go after the Kreb's Cycle?
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What happens to glucose during glycolysis?
What happens to glucose during glycolysis?
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In which part of the cell does glycolysis take place?
In which part of the cell does glycolysis take place?
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What kind of respiration takes place in the absence of oxygen?
What kind of respiration takes place in the absence of oxygen?
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Which molecule is referred to as the energy currency in cellular respiration?
Which molecule is referred to as the energy currency in cellular respiration?
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During aerobic respiration, how many ATP molecules are typically produced?
During aerobic respiration, how many ATP molecules are typically produced?
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What is produced as a byproduct of lactic acid fermentation in humans?
What is produced as a byproduct of lactic acid fermentation in humans?
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What role do hydrogen ions play in the electron transport chain?
What role do hydrogen ions play in the electron transport chain?
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Which process occurs first in cellular respiration?
Which process occurs first in cellular respiration?
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Which part of the mitochondria is primarily involved in the electron transport chain?
Which part of the mitochondria is primarily involved in the electron transport chain?
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What common feeling do humans experience when lactic acid accumulates in muscles?
What common feeling do humans experience when lactic acid accumulates in muscles?
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Study Notes
Cellular Respiration
- Cellular respiration is the process by which cells convert food (glucose) into energy. It occurs in the mitochondria.
- The general reaction for cellular respiration is: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy
- The energy produced is stored in a molecule called ATP (Adenosine Triphosphate).
- Energy is stored in the bonds between the phosphate groups.
Types of Respiration
- Aerobic respiration requires oxygen.
- Anaerobic respiration (fermentation) occurs without oxygen.
- Lactic acid fermentation occurs in humans during vigorous exercise when cells cannot get enough oxygen to perform aerobic respiration. The buildup of lactic acid causes a burning sensation in muscles.
- Alcohol fermentation occurs in yeasts and some microorganisms. Glucose is converted into alcohol as a byproduct.
Stages of Aerobic Respiration
- Glycolysis: Glucose is broken down into two 3-carbon molecules of pyruvate. This occurs in the cytoplasm.
- Krebs Cycle: Pyruvate enters the mitochondria to begin the Krebs cycle. Carbon and oxygen are released as CO₂, and hydrogen atoms are sent to the electron transport chain.
- Electron Transport Chain: Hydrogen atoms are pumped across the inner membrane of the mitochondria (cristae). This process produces the majority of ATP (between 28 and 32 ATP).
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Description
Test your knowledge on cellular respiration, including its processes, types, and stages, such as glycolysis and the Krebs cycle. Understand how energy is derived from glucose and the differences between aerobic and anaerobic respiration. Perfect for biology enthusiasts and students alike!
