Parts of the Eukaryotic Cell

1
Parts of the Eukaryotic Cell

• Section 4-2
• pp. 73-83

2
Cell Membrane

• Made up of proteins and lipids
• Is selectively permeable the cell controls what
  passes in and out

3
Cell Membrane (contd)

• Made up of phospholipids Heads point outward
  and tails point inward.
• Head- hydrophylic
• Tail- hydrophobic

4
Cell Membrane (contd.)

• Integral Proteins proteins embedded in the
  lipid bilayer.
• They have a carbohydrate attached for
  communication between cells (chemoreceptors).

5
Cell Membrane (contd)

• Fluid Mosaic Model Lipid bilayer behaves more
  like a liquid than a solid.

6
Mitochondria

• The conversion of organic compounds into energy
  takes place here.
• Known as the powerhouse of the cell.

7
Mitochondria (Contd.)

• Cristae enlarges S.A. provides room for energy
  conversion.

8
Ribosomes

• Involved in the synthesis of proteins.
• Found free floating in the cell and attached to
  the Rough E. R.

9
Smooth Endoplasmic Reticulum

• Storage site for enzymes and other chemicals.
• Doesnt have ribosomes attached.

10
Rough Endoplasmic Reticulum

• Protein synthesis occurs here.
• Ribosomes are attached to the surfaces of the
  rough E.R.

11
Rough E.R.

• The little dots are the ribosomes attached to the
  rough E.R.

12
Golgi Apparatus

• Modifies proteins for export by the cell.
• It is the processing, packaging, and secreting
  organelle in the cell.

13
Golgi Apparatus (Contd.)

• Shaped like a stack of pancakes.