Cell Structure

1
Cell Structure Function
http//koning.ecsu.ctstateu.edu/cell/cell.html
2
Cell Theory

• All living things are made up of cells.
• Cells are the smallest working units of all
  living things.
• All cells come from preexisting cells through
  cell division.

3
Definition of Cell

• A cell is the smallest unit that is capable of
  performing life functions.

4

• The Cell structures and functions

5
Cell Membrane

• Outer membrane of cell that controls movement in
  and out of the cell

http//library.thinkquest.org/12413/structures.htm
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6
Endoplasmic Reticulum

• Moves materials around in the cell
• transports of cellular materials
• packaging system

http//library.thinkquest.org/12413/structures.htm
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7
Cell Wall

• Most commonly found in plant cells bacteria
• Supports protects cells

http//library.thinkquest.org/12413/structures.htm
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8
Nucleus

• Directs cell activities
• Contains genetic material - DNA

9
Nucleolus

• Inside nucleus
• Contains RNA to build proteins

http//library.thinkquest.org/12413/structures.htm
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Chromosomes

• In nucleus
• Made of DNA
• Contain instructions for traits characteristics
  

http//library.thinkquest.org/12413/structures.htm
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Cytoplasm

• Thick Gel-like mixture that protects the
  internal parts of the cell

12
Ribosome

• Each cell contains thousands of ribosome
• Make proteins and build structures

http//library.thinkquest.org/12413/structures.htm
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13
Mitochondria

• Produces energy (ATP) through chemical reactions
  breaking down fats carbohydrates

http//library.thinkquest.org/12413/structures.htm
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Lysosomes

• Digestive 'plant' for proteins, fats, and
  carbohydrates
• Transports undigested material to cell membrane
  for removal

http//library.thinkquest.org/12413/structures.htm
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Vacuoles

• Membrane-bound sacs for storage, digestion, and
  waste removal

http//library.thinkquest.org/12413/structures.htm
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Chloroplast

• Usually found in plant cells
• Where photosynthesis takes place

http//library.thinkquest.org/12413/structures.htm
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