Monday, November 26, 2012

The Cell


A cell is the smallest part of any living thing. There are many parts of a cell. Each part of a cell completes a certain function for the cell.
All cells include the following parts:
Cell Membrane - forms the outer boundary of the cell and allows only certain materials to move into or out of the cell
Cytoplasm - a gel-like material inside the cell; it contains water and nutrients for the cell
Nucleus - directs the activity of a cell; it contains chromosomes with the DNA
Nuclear Membrane - separates the nucleus from the cytoplasm
Endoplasmic Reticulum - moves materials around in the cell
Ribosomes - make protein for the cell
Golgi Bodies - are used for packaging and secreting of energy
Mitochondria - break down food and release energy to the cell
Lysosomes - are chemicals used to digest waste
Vacuoles - are storage areas for the cell
Cytoskeleton - provides the shape of the cell



Organelles in a Plant Cell

Cell Wall - provides structure to the plant cell
Chloroplasts - contain chlorophyll that is make food for the plant cell
Other Parts
Centrioles = Cell organelles that form the spindle apparatus during cell division
Vesicles = Small bubbles of lipid within a cell, used for the transport of materials within the cell and between the outside environment and the cell membrane . Small bladder or sac containing liquid