LYSOSOMES LYSOSOMES
hold chemicals that break down food molecules, old cell parts, and harmful
bacteria. They are surrounded by a lipid bilayer membrane that keeps
their strong digestive chemicals contained inside. Thus, the lysosomes
have similar functions to the digestive system of the body.
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RIBOSOMES
RIBOSOMES are little grains of RNA
and proteins. Their job is to assemble amino acids into proteins
under the direction of the cell's DNA. Some ribosomes are associated
with the rough endoplasmic reticulum and assist with its protein synthesis.
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Membrane
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MITOCHONDRIA
MITOCHONDRIA are the organelles that
make the molecules that provide cell energy (ATP). One of these organelles
is a mitochondrion which means thread-like granule. Mitochondria
are small spherical or elliptical organelles surrounded by a special lipid
bilayer membrane. The membranes of mitochondria both separate them
from the cytoplasm and divide the inside into leaflets. Mitochondria
are where the cell's energy is made. Thus mitochondria are sometimes
called the cell's powerhouse.
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Plant
Cells Have CELL WALL
The CELL
WALL is found outside the cell membrane
in plant cells. Cell walls are nonliving semirigid or rigid barriers
around the plant cell. The cell wall is there to give the cell support
and to protect the cell.
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Plant
Cells Have VACUOLES
VACUOLES
are organelles with lipid bilayer membranes inside plant cells. They
store salts, sugars, a few proteins, and sometimes plant colors.
They act as storage bags for the cell.
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the Cell Membrane
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first page
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organelle review
Plant
Cells Have CHLOROPLASTS
CHLOROPLASTS
are organelles in plants similar to mitochondria. They are the organelles
that can carry out photosynthesis.
MITOCHONDRIA are the organelles that
make the molecules that provide cell energy (ATP). One of these organelles
is a mitochondrion which means thread-like granule. Mitochondria
are small spherical or elliptical organelles surrounded by a special lipid
bilayer membrane. The membranes of mitochondria both separate them
from the cytoplasm and divide the inside into leaflets. Mitochondria
are where the cell's energy is made. Thus mitochondria are sometimes
called the cell's powerhouse.
VACUOLES
are organelles with lipid bilayer membranes inside plant cells. They
store salts, sugars, a few proteins, and sometimes plant colors.
They act as storage bags for the cell.
CHLOROPLASTS
are organelles in plants similar to mitochondria. They are the organelles
that can carry out photosynthesis.