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Vacuoles
Viruses and prions have the ability to reproduce. After entering a cell, they alter something about it's protein formation
Prions are too poorly understood to give a definitive answer on this. However it is believed that the normal version of the protein (PrPC) resides on the cell membrane and is involved in cell to cell communication. So it's likely that the prions don't enter the cytoplasm.
The smallest unit of life is a cell when life is defined as the ability to replicate oneself. An argument can be made for prions and viruses to be the smallest units of life and although they are able replicate themselves, they are unable to do so without a host. I would argue that cells in an animal or plant would be unable to replicate themselves without the oxygen and nutrients that they receive by being part of an overall system. Another interesting thing to ponder is that mitochondria; the cell's power source are capable of reproducing themselves within the cell body, but again, need the cell's nourishment to be able to divide.
proteins and nucleic acids
Viruses
A virus is a small infectious microorganism that exists as a particle rather than a complete cell that is not capable of reproducing outside of a host cell. A virus only reproduces inside of other living cells in other organisms.
Vacuoles
Viruses and prions have the ability to reproduce. After entering a cell, they alter something about it's protein formation
Prions are too poorly understood to give a definitive answer on this. However it is believed that the normal version of the protein (PrPC) resides on the cell membrane and is involved in cell to cell communication. So it's likely that the prions don't enter the cytoplasm.
Cell Growth is the reproducing of cells.
they are reproducing cells
the transmission of cells is called Reproducing.
They reproducing and reincarnation ^_^
Basically all living organism must have at least one cell to survive and to carry out its function.Organism like virus, viriods or prions are not considered as living organism as they can't carry out its function outside the host cell.
The smallest unit of life is a cell when life is defined as the ability to replicate oneself. An argument can be made for prions and viruses to be the smallest units of life and although they are able replicate themselves, they are unable to do so without a host. I would argue that cells in an animal or plant would be unable to replicate themselves without the oxygen and nutrients that they receive by being part of an overall system. Another interesting thing to ponder is that mitochondria; the cell's power source are capable of reproducing themselves within the cell body, but again, need the cell's nourishment to be able to divide.
proteins and nucleic acids