Cell organelles
Name Structure Functions.
Nucleus The nucleus of a cell is bound They holds the cell's hereditary
by a nuclear envelope which information and controls the
the membrane divides the cell's growth and reproduction.
contents of the nucleus from
the cytoplasm.it is the main
centre of the cell.
Cell membrane The cell membrane is a thin The cell membrane protect the
semi-permeable membrane the cell by allowing certain
that fence the cytoplasm of a substances into the cell, while
cell. The cell membrane keeping other substances out
contains a mix of proteins and
lipids.
Cell wall The cell wall is a fixed, semi- It protects, supports and gives
permeable protective layer of shape to the cell.
the cell. It covers the cell and is
found next to cell membrane.
Nucleolus The nucleolus is a curved body They make subunits which
found in the nucleus. They are form ribosomes.
made up of RNA, DNA and
proteins.
Cytoplasm The cytoplasm consists of all of The cytoplasm helps materials
the organelles outside the move around the cell and also
nucleus and fenced within the dissolves cellular waste.
cell membrane of a cell. The
cytoplasm is clear in colour and
has a gel-like appearance. It is
made of water and also
contains enzymes, salts and
various organic molecules.
Mitochondria They cigar shaped. Their inner They changes energy into
membranes has layers called forms which can be used by
cristae which guard a fluid cells. They produce adenosine
matrix. triphosphate which cells uses
for respiration.
Ribosome Ribosome is an important They makes millions of proteins
molecule made of ribonucleic that are needed by cells.
acid (RNA) and proteins
(ribosomal proteins). The
formation of a ribosome is
complex.
Name Structure Functions.
Nucleus The nucleus of a cell is bound They holds the cell's hereditary
by a nuclear envelope which information and controls the
the membrane divides the cell's growth and reproduction.
contents of the nucleus from
the cytoplasm.it is the main
centre of the cell.
Cell membrane The cell membrane is a thin The cell membrane protect the
semi-permeable membrane the cell by allowing certain
that fence the cytoplasm of a substances into the cell, while
cell. The cell membrane keeping other substances out
contains a mix of proteins and
lipids.
Cell wall The cell wall is a fixed, semi- It protects, supports and gives
permeable protective layer of shape to the cell.
the cell. It covers the cell and is
found next to cell membrane.
Nucleolus The nucleolus is a curved body They make subunits which
found in the nucleus. They are form ribosomes.
made up of RNA, DNA and
proteins.
Cytoplasm The cytoplasm consists of all of The cytoplasm helps materials
the organelles outside the move around the cell and also
nucleus and fenced within the dissolves cellular waste.
cell membrane of a cell. The
cytoplasm is clear in colour and
has a gel-like appearance. It is
made of water and also
contains enzymes, salts and
various organic molecules.
Mitochondria They cigar shaped. Their inner They changes energy into
membranes has layers called forms which can be used by
cristae which guard a fluid cells. They produce adenosine
matrix. triphosphate which cells uses
for respiration.
Ribosome Ribosome is an important They makes millions of proteins
molecule made of ribonucleic that are needed by cells.
acid (RNA) and proteins
(ribosomal proteins). The
formation of a ribosome is
complex.
