Cells: Cell Structure and Functions

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CellsCell Structure and Functions
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Cell Discovery

• Robert Hooke
• Observed cork cells with a microscope and
  discovered cell walls
• Named the structure the cell because it
  reminded him of the small rooms (cells) in which
  the monks lived

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Components and Functions

• Cell Membrane a selectively permeable membrane
  that separates the cell from its external
  environment
• Cytoplasm jelly-like material found inside the
  cell membrane
• Ribosome organelles where protein are made

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Components and Functions

• Endoplasmic Reticulum (ER) membrane system of
  folded sacs and tunnels.
• Can be rough or smooth.
• Smooth ER functions primarily as intracellular
  highway for movement of molecules from one part
  of the cell to another.
• Also storage of synthesized proteins

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Components and Functions

• Golgi Apparatus processing, packaging and
  secreting organelles of the cell
• Mitochondria respiration organelle of the cell.
  Chemical reaction will release energy (ATP) from
  the nutrients taken into the cell
• Cell Nucleus contains DNA and chromosomes. The
  genetic information center of the cell

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Components and Functions

• Nuclear Envelope (Membrane) porous membrane
  surrounding the nucleus that allows materials in
  and out of the nucleus
• Nucleolus cell part that helps make ribosomes

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Components and Functions

• Lysosomes organelle that contains digestive
  enzymes. They digest food particles, disease
  causing bacteria captured by white blood cells,
  and worn out and broken parts of cells.
• Centrioles cell part that helps with cell
  reproduction

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Activity

• Construct a cell using the given materials