ORGANIZATION OF CELL

  CELL

TISSUE

  GROUP OF CELLS

ORGAN

                         GROUP OF TISSUE

ORGAN SYSTEM
                                        GROUP OF ORGAN


                               
 ORGANISM
                                     GROUP OF ORGAN SYSTEM

.......ELRECORIDO DE SOFIA.......

TYPES OF ORGANISMS.

An organism is anything that can live on its own.

                                                                     ORGANISMS:


UNICELLULAR ORGANISM:    
                                                  
         One cell.                                                                                                             
     Example :                                                                                                                 
          Bacteria.  

                                                                                                         
MULTICELLULAR  ORGANISM:

              Two or more cells.                                                                  
               Example:
          Dog, cat, flowers.


UNICELLULAR ORGANISM:                                                            

 An organism made of one cell. 
These organisms are very small
and need to be seen with a microscope.
Example: Bacteria and Unicellular Fungi.    
                
MULTICELLULAR ORGANISM:

An organism made of two or more cells.
These organisms are able to be seen  
  with a naked eye.
Example: Humans, Birds, Insects.

ANIMALS AND PLANT CELLS.

There are some similarities and differences in plant cells and animal cells.

Differences:

Animal cells: They not have chloroplast.                                 Plant cells: Only plant cells have chloroplast.

Animal cells dont have cell wall.                                             Plant cells have a cell wall that surrounds and 

                                                                                              protect the cell.

Vacuoles are very small.                                                         Vacuoles are much bigger in plant cells.

Similarities:

Both animal cells and plant cells have:

A cell membrane that holds the cell material inside.
Nucleus, hich is the cells control center.
Cytoplasm, nuclear membrane, ribosomes, lysosomes, golgy complex, E.R, etc...

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.