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Cell theory
Year 11 Biology
4
Biology
11th Grade
03/17/2010

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Cards

Term
What is a Prokaryotic cell?
Definition
  • It is an extremely small cell
  • Has a simple internal structure
  • Has no membrane bound organelles
  • Only Bacteria and Cyanobacteria are prokaryotes
Term
What is a Eukaryotic cell?
Definition
  • Has complex internal structure
  • Has many membrane bound organelles
  • Has membrane bound nucleus
  • Inc. animals, plants, protozoa and fungi
Term

Plasma Membranes

 

Definition
  • Each living thing has a plasma membrane
  • Controls the entry of dissolved substances into and out of cell
  • major component=Phospholipid
  • Plasma membrane is made of a double layer of phospholipids with proteins embedded into the layer to provide channels
Term
What are the functions of a Plasma Membrane?
Definition
  • is to hold the Cytoplasm within its boundaries
  • Controls movement in and out of the cell, it allows come substances to cross by either diffusion or active transport
  • Semi pearmeable
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