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*[]basic science[]*

basic science

from biology
the word biology is taken from the greek language it is combination of two words bios means life
and logos means study it is difined as the branch of science which deels with the study about life biology is farther
divided in to main branches
1,zology about animals,
2,botany about plants,
Cell
cell is the basic structural and functional unit of life all living thing are made up of cells.cell
is building blocks of living organisms cell was discoverd by robet hook in 1665.cell is a minute small which we can not
only with our macked eyes. we see only with the help of electronic microscope"
part's of cell
there are five parts of cell,
1,cell wall,
it is the outer most layer of plant cell it is non living and made up of
non-living material celled cellulose its main function is to protect and maintain the shape of plant cell,
2,cell membrane,
it is also called plasma membrane it is outer most layer of animals cell is present in both plant.
and cell. cell its main function is to control exist,
3,proto plasma,
it is jelly like material present inside the cell
membrane it is first living materal of cell it has two parts,
1,cytoplasma,
2,nucleus,
1,cytoplasma,
it is transportent
jelly like living substance it contain a member of minute living structure called cell organells and many living
jelly like living substance it contain a member of minute living structure called cell organells and many living
substances,
2,nucleus,
it is the most important part of cell becourse it controls all the activites of cell it is
usually sphroical or oral in shape,
4,cell organells, they are living extremcty small structures present in the
cytoplasma and are concernen with the cell function,
5,cell inclusions,the non-living constituents of a cell are known
as cell inclusion this includes water,minerals salts,sugar protien,e.t.c


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