lunes, 25 de octubre de 2010

THE ORGANELLES OF THE CELL.

CYTOPLASM:  Refers to the jelly-like material with organelles in it.
MITOCHONDRIA:  The main function is the convertion of food into energy.
RIBOSOMES:  Organelles that help in the synthesis of proteins.Some ribosomes are found in the cytoplasm.
ENDOPLASMIC RETICULUM:  It is a network membrane troughout the cytoplasm of the cell.There are 2 types:
ROGH ER:  When ribosomes are attached to the ER.
SMOOTH ER:  When there are no ribosomes attached.
GOLGY COMPLEX:  It is the organelle in the cell that is risponsible for pack and carry proteins from the Endoplasmic Reticulum.
VESICLES AND VACUOLAS:  Both are storage organelles in the cell.They store water, food, waste products and other cellular materials.
LYSOSOMES:  They receive the cellular proteins and lipids that we eat and need digesting.
CILIA:  Are thread-like projections of certain cells.
FLAGELLA:  May extend to the rear of the cell.They function in locomotion.
NUCLEUS:  It is the control center of the cell.It contains the DNA of the cell.
NUCLEOLUS:  Inside the nucleus it is another organelle called nucleolus wich is responsable for making ribosomes.
NUCLEAR PORES:  These are where ribosomes and other materias move in and out of the nucleus.
CELL MEMBRANE:  It surrounds all the cell and it is selectively-permeable controling the movement of subtances in and out of the cell.
CHANNELS/PORES:  Its function is to control the movemento of food and water into the cell.
CHLOROPLAST:  The cell organelle in wich photosynthesis take place.