Kids Search. The Best Search Engine for K-12 Kids and Children.     

   web | images | video | facts | wiki | news | games | kidztube | apps








report a search problem







COMPANY RESOURCES LINKS SOCIAL
contact us education daily journal home facebook
about us make us your default search kidztalk twitter  
terms/privacy blocking websites kidznet pinterest  
advertise teacher zone wiki    
media link to us learning sites    
business / api solutions add a site image search    
affiliate program kidzsearch apps kidztube    
play youtube on kidzsearch games    
  voice search music    
  report a problem cool facts    
  settings news    
    search help    
    kidznet directory    
         










 mobile version

      Copyright 2005-2021 KidzSearch.com 
Plant cells have strong walls, and inside the wall is a cell membrane, then a thin layer of cytoplasm with the nucleus and other organelles in it. The cytoplasm is pressed against the cell wall by the very large vacuole. In this picture the cell nuclei are dark-coloured.

Protoplasm is an old term, which means the living substance that makes up a cell. It is no longer much used. Biologists prefer to talk about the cytoplasm and the cell nucleus.

In plant cells, it is surrounded by a cell wall. In animal cells, the whole cell is made of protoplasm, surrounded by a cell membrane. Protoplasm in living beings is made up of about 75–80% water. However, this is rather misleading because the cytoplasm is full of structures called organelles, which do various tasks. The endoplasmic reticulum is the largest of these structures; there are many other organelles.  view more...