Chapter 7 Cell Structure

1
Chapter 7Cell Structure Function

• Section 7-4
• The Diversity of Cellular Life

2
Unicellular Organisms

• Cells Are
• The Basic Living Units Of All Organisms
• Unicellular Organisms
• Grow
• Respond
• Reproduce

3
Unicellular Organisms

• Prokaryotes
• Live Everywhere

4
Unicellular Organisms

• Eukaryotes
• Many live their entire lives as single cells

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Unicellular Organisms

• Eukaryotes
• Some protists and algae are unicellular but live
  in colonies

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Multicellular Organisms

• Key Concept
• Cells In Multicellular Organisms Are Specialized
  To Perform Particular Functions Within The
  Organism
• Cell Specialization

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Red Blood Cells
8
Pancreatic Cell
9
Nerve Cells
10
Muscle Cells
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Levels of Organization

• Key Concept
• The Levels Of Organization In A Multicellular
  Organism Are
• Individual Cells
• Tissues
• Organs
• Organ Systems

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Cells

• Specialization
• And
• Interdependence
• Make Multicellular Organisms Work

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Tissues

• Group Of Similar Cells That Perform A Particular
  Function
• Four Main Types
• Muscle
• Epithelial
• Nervous
• Connective

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Organs

• Many Groups Of Tissues Working Together
• Muscle Tissue Contains
• Muscle Cells
• Nerve Cells
• Connective Tissue Cells
• Blood Supply

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Organ Systems

• A Group Of Organs Working Together To Perform A
  Specific Function

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Organ Systems

• Nervous
• Skeletal
• Muscle
• Integumentary
• Circulatory

• Respiratory
• Digestive
• Excretory
• Endocrine
• Reproductive
• Immune