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Additional
Protoplasm
English Wikipedia - The Free Encyclopedia
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Protoplasm
Protoplasm
is the living content of a
cell
that is surrounded by a
plasma membrane
. It is a general term for the
cytoplasm
. Protoplasm is composed of a mixture of small molecules such as
ions
,
amino acids
,
monosaccharides
and
water
, and
macromolecules
such as
nucleic acids
,
proteins
,
lipids
and
polysaccharides
. In
eukaryotes
the protoplasm surrounding the
cell nucleus
is known as the
cytoplasm
and that inside the nucleus as the
nucleoplasm
. In
prokaryotes
the material inside the plasma membrane is the bacterial cytoplasm, while in
Gram-negative bacteria
the region outside the plasma membrane but inside the outer membrane is the
periplasm
.
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