otherwise they would denature
Prions do not require a host to survive in the traditional sense, as they are misfolded proteins that can exist independently in the environment. They can remain stable and infectious outside of a host for extended periods, often found in contaminated materials. However, to propagate and cause disease, prions need to interact with normal proteins in a host to induce misfolding. Thus, while they can exist outside a host, they need a host for replication and pathogenicity.
No. Life cannot exist on a star; stars are far too hot to support life. There are no known planets in the Polaris system and the output from Polaris A is probably too variable for a stable environment.
An ecosystem is a stable self-perpetuating community in which populations exist in balance with each other and the environment. This balance is maintained through interactions between living organisms and their physical surroundings. Each species plays a role in the ecosystem, and changes in one population can have ripple effects throughout the entire system.
Proteins generally have both acidic (carboxyl) and basic (amino) functional groups in their structures. Depending on the pH of the surrounding environment, proteins can exist in different protonation states which can affect their overall charge and solubility. This contributes to the acid-base properties of proteins.
Proteins are not bad. Without proteins no living things would exist on the earth anywhere.
There are estimated to be tens of thousands of different proteins in the human body.
Mendelevium doesn't exist in the environment.
Ununoctium doesn't exist in the environment.
Asexual reproduction can be advantageous in stable environments where offspring are genetically identical to the parent, ensuring successful adaptation to current conditions. It also allows for rapid population growth since there is no need to find a mate.
Yes most of the enzymes are proteins. There are a few RNA enzymes known as ribozymes exist. Proteins are all coded in DNA in the nucleus.
Proteins are solute molecules found in a dissolved form in buffer. Proteins can be crystallized to form a crystal (solid) by evaporation. This method is used in protein X-ray crystallography to solve its 3D structure.
So that our cells will know how to make the proteins that they must make to exist.