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How is it that some bacteria live in hot springs?
Some bacteria live in hot springs. Their cells contain enzymes that function best at temperatures of 70 °C or higher. The enzymes will not increase the rate of reactions as much as they would at 70 °C.
What organisms are in hot springs?
Examples of thermophilic microorganisms found in hot springs include bacteria in the genera Sulfolobus, which can grow at temperatures of up to 90 °C (194 °F), Hydrogenobacter, which grow optimally at temperatures of 85 °C (185 °F), and Thermocrinis, which grow optimally at temperatures of 80 °C (176 °F).
WHY CAN T cells harness heat to perform work?
cells do not have much heat; they are relatively cool. heat can never be used to do work. d. temperature is usually uniform throughout a cell.
Do high temperatures make catalysis unnecessary?
high temperatures make catalysis unnecessary. their enzymes are completely insensitive to temperature. they use molecules other than proteins or RNAs as their main catalysts. they are able to maintain a lower internal temperature.
What are the organism living in hot springs and thermal vents where other organisms Cannot live?
The archaea are the organisms that can live in hot springs and thermal vents.
Which enzyme would you expect to be in a bacteria that lives in a hot spring?
And the microbe’s cellulase is the most heat tolerant enzyme found in any cellulose-digesting microbe, including bacteria.
How do bacteria in hot springs make food?
While some Bacteria perform photosynthesis, others depend on chemical energy that is released when compounds like hydrogen or sulfur react with oxygen. This energy is then used to convert carbon dioxide into biomass (chemosynthesis).
Why is heat not a substitute for living cells as a source of activation energy for chemical reactions?
For this reason, heating up a system will cause chemical reactants within that system to react more frequently. Increasing the pressure on a system has the same effect. Like these reactions outside of cells, the activation energy for most cellular reactions is too high for heat energy to overcome at efficient rates.
Can heat be harnessed to do work?
(A) heat does not involve a transfer of energy.
Which of the following statements is true of metabolism in its entirety in all organisms?
Which of the following is true of metabolism in its entirety in all organisms? Metabolism consists of all the energy transformation reactions in an organism. The organism ultimately must obtain all of the necessary energy for life from its environment.
What is the name of the thermodynamic barrier that must be overcome?
In most exergonic reactions, the reactants capable of interacting to form products typically must first overcome a thermodynamic barrier known as the: activation energy of the reaction.