Extremophiles Flashcard BWHS

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What are extremophiles?

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Extremophiles are organisms that thrive in extreme environmental conditions, such as high temperature, acidity, salinity, or pressure.

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What domain do tardigrades belong to?

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Tardigrades belong to the domain Eukarya because they have a nucleus.

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What is chemosynthesis?

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Chemosynthesis is the process by which certain organisms convert inorganic compounds into organic matter using chemical energy, rather than sunlight.

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What is cryobiosis?

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Cryobiosis is the ability of an organism to survive extreme cold conditions, including freezing temperatures.

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What is the primary energy source for organisms in hydrothermal vents?

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The primary energy source for organisms in hydrothermal vents is chemosynthesis.

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What are polyextremophiles?

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Polyextremophiles are organisms that can survive in multiple extreme conditions, such as high temperature, pressure, and salinity.

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What role does volcanism play in hydrothermal vents?

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Volcanism generates the heat required to fuel hydrothermal vents, creating a unique ecosystem.

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What is the difference between Archaea and Eubacteria?

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Archaea are single-celled organisms that often live in extreme environments and have distinct biochemistry, while Eubacteria are more common bacteria with different structural characteristics.

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How do tardigrades survive extreme conditions?

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Tardigrades can enter a state called cryptobiosis, allowing them to survive extreme temperatures, radiation, and dehydration.

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What is the significance of hydrothermal vent ecosystems?

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Hydrothermal vent ecosystems are significant because they host unique organisms that rely on chemosynthesis, providing insights into life's adaptability.