Cell Structure and Function

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Cell Structure and Function

• Prentice Hall Biology
• Pages 168 to 199

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Two Types of Cells

• Prokaryotic Cell
• Lacks membrane enclosed organelles
• Bacteria
• Eukaryotic Cell
• True Nucleus
• Organelles suspended in cytosol

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Prokaryotic Cell
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Two Types of Eukaryotic Cells

• Animal Cell
• Plant Cell
• Both contain
• Cell Organelles Carry out life functions
• Cytoplasm-Material that makes up cell

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Animal Cell
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Plant Cell
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Cell Membrane

• Made of two Lipid (fat) layers - bilipid layer
• Regulates passage of materials in and out of the
  cell.

• Barrier that contains cytoplasm

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Nucleus

• Control of Cell Functions
• Components
• Nuclear Envelope controls passage of materials
  in and out of the nucleus
• Nucleolus Synthesis of Ribosome
• Chromatin Strands of DNA

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Nuclear Envelope
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Mitochondria

• Does Respiration
• Absorbs oxygen and Sugar
• Produces carbon dioxide, water and energy for
  life functions
• Generates heat
• The base consumer

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Vacuole

• Storage

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Endoplasmic Reticulum

• Assembly line for the formation of organic
  polymers
• Smooth ER lacking Ribosomes
• Rough ER Ribosomes attached
• Ribosome Carries information from DNA to
  control the production of proteins

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Golgi Apparatus

• Completes the synthesis of Proteins

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Cytoskeleton

• Provides structure and support

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Cell Wall

• Protection of Plant Cells provides structure to
  plants

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Chloroplast

• Conducts Photosynthesis

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Reflection

• How is a cell like a factory?
• Why do plant cell need Cell Walls?
• How do cells eat?