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Questions and Answers
What is the primary purpose of fermentation in organisms?
What is the primary purpose of fermentation in organisms?
- To convert carbon dioxide into glucose.
- To break down sugar molecules into simpler compounds for energy production. (correct)
- To produce oxygen from sugar molecules.
- To create complex sugars from simple molecules.
What is the main advantage of fermentation for organisms living in anoxic environments?
What is the main advantage of fermentation for organisms living in anoxic environments?
- It enables them to utilize sunlight for energy production.
- It enables them to create their own oxygen supply.
- It allows them to thrive in environments with high oxygen levels.
- It allows them to produce energy without the need for oxygen. (correct)
Which of the following is NOT an example of an anoxic environment?
Which of the following is NOT an example of an anoxic environment?
- Soil
- The surface of a lake (correct)
- Mud
- Hydrothermal vents deep under the sea
Which type of organism is most likely to thrive in anoxic environments?
Which type of organism is most likely to thrive in anoxic environments?
What is the key difference between aerobic and anaerobic respiration?
What is the key difference between aerobic and anaerobic respiration?
Flashcards
Fermentation
Fermentation
The process of breaking down sugar into simpler compounds to produce energy without oxygen.
Anaerobic organisms
Anaerobic organisms
Organisms that thrive in environments without oxygen, relying on fermentation for energy.
Examples of anoxic environments
Examples of anoxic environments
Locations like mud, soil, or deep-sea vents where oxygen is absent.
Obligate anaerobes
Obligate anaerobes
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Facultative anaerobes
Facultative anaerobes
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Study Notes
Fermentation
- Fermentation is the breakdown of sugar molecules into simpler compounds to create usable chemical energy.
- It enables cells to produce chemical energy from sugar (e.g., glucose) without needing oxygen.
- This process is crucial for anaerobic organisms (obligate, facultative, or aerotolerant) to survive in oxygen-free environments (anoxic).
- Examples of anoxic environments include mud, soil, and deep-sea hydrothermal vents.
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