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prions are refolded versions of normal proteins, so the B and T cells see them as "normal" and thus ignore them.
Ammonia is ammonia and ammonia is toxic. Non-toxic ammonia does not exist. Ammonia can be diluted in water or held in a sealed container, but it's still toxic.
No! Stromatolites converted the toxic atmosphere into a breathable one.
Toxic oxygen--.When oxygen is used by the body, most of it is converted to water. However, a small fraction of the oxygen breathed is converted to toxic oxygen. The body uses several different processes for preventing and repairing toxic-oxygen damage.
catalase, superoxide dismutase
A catalytic converted convers the toxic chemicals into less toxic chemicals. It is crucial so that the byproducts of combustion are less harmful to the environment and to the car itself.
No they do not. Humans does not contain ammonia in urine.
Normal results include satisfactory clearance of the toxic substance or waste products from the patient's blood.
NH4 is most toxic, in fact in mammals it is always transported in the form of glutamate, because it is so toxic. So if this is in reference to humans, that is the most likely answer. NH3 on the other hand is non toxic unless present in high concentrations for whatever reason (such as problems with excretion when it is converted to Urea
The early Earth atmosphere was toxic until the Stromatolites converted it to the nitrogen/oxygen mixture we now have. It is maintained by the trees and algae.
Smoke or gas let off by a melted plastic spoon is toxic and should be avoided. The cooled plastic can be disposed of in the trash in a normal way.
No. All cells, whether normal or malignant, are destroyed in the process.