How is it that some bacteria live in the hot springs of Yellowstone Park at temperature up as high as 73 C?
Extreme thermophiles have adapted unique ways to surviving harsh conditions. They're enzymes are specially designed to resist denaturing at high temperatures. What's really amazing is their DNA. Extremophile DNA is positively supercoiled (this describes the way it is twisted around itself) which makes it harder to separate the strands. DNA in most other species is negatively supercoiled (meaning it's wound up on itself in the opposite direction as positively supercoiled DNA). Since DNA is the building block of life, it makes sense that you need to be able to protect it from the environment. Extremophiles do just that by positively supercoiling it. It is much more resistant to heat denaturing than other DNA would be, which helps the bacteria to survive.
Sterilizing I think. You kill any bacteria with heat or radiation.
One example of an organism that can live in very high temperatures in water is the thermophilic bacteria Thermus aquaticus. These bacteria are commonly found in hot springs and hydrothermal vents where temperatures can reach over 70Β°C. This organism is known for its ability to thrive in extreme heat due to special adaptations in its enzymes.
Heat-resistant structures in bacteria include endospores, which are dormant, tough structures that can survive extreme conditions like high temperatures. Endospores are formed by some bacteria as a defense mechanism to protect their genetic material. They allow bacteria to withstand harsh environments and continue to exist in unfavorable conditions.
Leptospira species are not resistant to heat and can be killed by high temperatures. Proper heat treatment, such as boiling water or steam sterilization, can effectively control and kill Leptospira bacteria.
Archeabacteria are the most simple celled organisms. they can thrive in hazardous regions because they are so simple. being simple allows them to live in such harsh regions like high salt concentrations, high heat and high pressured areas. they are the simplest form of prokaryotes (bacteria are also prokaryotes).
Sterilizing I think. You kill any bacteria with heat or radiation.
The live R bacteria acquired a capsule and became live, virulent S bacteria.
Yes, excessive heat can kill the bacteria in buttermilk.
Frederick Griffith hypothesized that live, harmless bacteria and the heat-killed bacteria were mixed, some factor was transferred from the heat-killed cells into the live cells! it has nothing to do with bats flying thru walls!!
Heat killed S bacteria in Griffith's experiment was because of the temperature of the heat. The heat was high enough to kill many things like proteins and enzymes, so the bacteria could not create endospores to harm the immune system.
One example of an organism that can live in very high temperatures in water is the thermophilic bacteria Thermus aquaticus. These bacteria are commonly found in hot springs and hydrothermal vents where temperatures can reach over 70Β°C. This organism is known for its ability to thrive in extreme heat due to special adaptations in its enzymes.
that it was very gay
It means that their brains have been processed with high heat to keep out the bacteria.
This experiment was conducted by Frederick Griffith in 1928. He observed that when he mixed a harmless strain of bacteria with a heat-killed virulent strain, the harmless bacteria were transformed into a virulent form. This led to the hypothesis that something in the heat-killed bacteria had transformed the live bacteria.
Bacteria CAN live on Earth.
Heat-resistant structures in bacteria include endospores, which are dormant, tough structures that can survive extreme conditions like high temperatures. Endospores are formed by some bacteria as a defense mechanism to protect their genetic material. They allow bacteria to withstand harsh environments and continue to exist in unfavorable conditions.
Organisms that live in extreme environments are often found in domains Archaea and Bacteria. These extremophiles thrive in conditions such as high temperatures, acidic environments, high salinity, or high pressure, where most other organisms cannot survive.