LABORATORY REVIEW
CELL RESPIRATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Near deep sea volcanic vents and inside tube worms.
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In soil and roots of some plants
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Near volcanic vents and in soil
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Detailed explanation-1: -The giant hydrothermal vent tubeworms aren’t called “extremophiles” (they live in extreme environments) for no reason. Colonies of these tubeworms live on hydrothermal vents spewing hot, mineral-rich water that, in some places, can reach an astounding 350 degrees Celsius (660 degrees Fahrenheit).
Detailed explanation-2: -Bacteria at hydrothermal vents inhabit almost everything: rocks, the seafloor, even the inside of animals like mussels. All are living under extreme pressure and temperature changes. Perhaps the oddest and toughest bacteria at vents are the heat-loving ‘thermophiles.
Detailed explanation-3: -Previous studies have shown that Epsilon-proteobacteria are dominant bacteria identified from active hydrothermal vents, and play a role in carbon and sulfur cycles6, 12, 27, 28. However, Epsilon-proteobacteria was not detected in the two samples in this study.
Detailed explanation-4: -Tiny microbes use chemical energy instead of light to combine water and carbon dioxide to make sugar. This chemical energy develops because of water that has seeped through the seafloor and is super-heated by the hot molten rock beneath the Earth’s crust.