Cell Structure. Cell Organelles Little organs- carry out life processes in the cell.

Cell StructureCell Structure

Cell OrganellesCell Organelles

• Little organs- carry out life processes in the cell

1. Lysosome 1. Lysosome

• Cellular digestion, contains enzymes

2. Golgi Apparatus2. Golgi Apparatus

• Collects, packages, modifies molecules

3. Mitochondria 3. Mitochondria

• “Powerhouse”, releases energy

• (ATP)

4. Centrioles 4. Centrioles

• ANIMAL cell reproduction

5. Vacuoles-5. Vacuoles-

• Storage

6. Ribosomes-6. Ribosomes-

• Site of protein synthesis

7. E. Reticulum7. E. Reticulum

• Intracellular transport (within the cell)

8. Nuclear Envelope8. Nuclear Envelope

• Separates nucleus from cytoplasm– Cytoplasm- living

material between nucleus and cell membrane

9. Nucleolus9. Nucleolus

• Small body in nucleus (RNA & protein)

10. Nucleus10. Nucleus

• Control center of the cell

11. Chromosomes11. Chromosomes

• Contain the genetic material (DNA)

12. Chloroplast12. Chloroplast

• PLANT cells, contains chlorophyll

13. Cell Wall13. Cell Wall

• PLANT cells only, protect & support

14. Cell Membrane14. Cell Membrane

• “Gatekeeper”, controls what enters & leaves the cell

Cell TheoryCell Theory

• Explains the basic role of cells in living things

3 parts3 parts

• 1. All living things are made of cells

3 parts3 parts

• 2. Cells are the basic unit of structure and function in living things

– structure- what it is made of

– function- what it does

3 parts3 parts

• 3. All cells come from pre-existing cells

5 Individuals & Contributions5 Individuals & Contributions

Van LeeuwenhoekVan Leeuwenhoek

• Developed microscope

• 1st to describe living cells

HookeHooke

• 1st to observe cells, dead cork cells

SchleidenSchleiden

• All plants are composed of cells

SchwannSchwann

• All animals are composed of cells

VirchowVirchow

• All cells come from other cells

• All images- clip art