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Cellular Structure

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Cellular Structure & Function Cell Theory Anton Von Leeuwenhoek Created 1st light microscope Robert Hooke Coined the term cells resembled little rooms in ... – PowerPoint PPT presentation

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Title: Cellular Structure


1
Cellular Structure Function
2
Cell Theory
  • Anton Von Leeuwenhoek
  • Created 1st light microscope
  • Robert Hooke
  • Coined the term cells resembled little rooms
    in monastery

3
Cell Theory
  • Matthias Schleiden
  • Stated that all plants are made of cells
  • Theodor Schwann
  • Stated that all animals are made of cells

4
Cell Theory
  • Robert Brown
  • Discovers nucleus(dark center)role in division
  • Rudolf Virchow
  • See describe cell division

5
Cell Theory
  1. All living things are made of cells.
  2. Cells are the basic unit of structure function.
  3. All cells come from pre-existing cells.

6
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7
Prokaryotic Cells
  • Simplest cell
  • No nucleus or organelles
  • Contains cell wall/membrane, cytoplasm,
    ribosomes, genetic material
  • Ex bacteria

8
Eukaryotic Cells
  • True Cells those containing a nucleus
  • Ex Plant animal cells

9
CELL WALL
  • FOUND plants
  • FUNCTION rigid support protection movement
    of H20 gasses
  • STRUCTURE 3 layers
  • Pectin glue
  • Cellulose
  • Lignin

10
CELL MEMBRANE
  • FOUND both plants animals
  • FUNCTION regulates in/out cell
  • STRUCTURE 2 layers of lipids protein
    doorways

11
NUCLEUS
  • FOUND both plants animals
  • FUNCTION control center of cell
  • STRUCTURE
  • Nucleolus (center)
  • Chromatin (DNA)
  • N. envelope (outer)

12
CYTOPLASM
  • FOUND both plants animals
  • FUNCTION holds all organelles in place site
    chemical rxns
  • STRUCTURE gel-like material (colloid)

13
MITOCHONDRIA
  • FOUND both plants animals
  • FUNCTION make energy
  • STRUCTURE shaped like kidney bean
  • Cristae inner membranes

14
RIBOSOMES
  • FOUND both plants animals
  • FUNCTION make protein
  • STRUCTURE composed of protein RNA
  • Free-floating
  • Attached ER

15
ENDOPLASMIC RETICULUM
  • FOUND both plants animals
  • FUNCTION transportation
  • STRUCTURE
  • Rough ER ribosomes attached moves proteins
  • Smooth ER no ribosomes makes moves lipids

16
GOLGI APPARATUS
  • FOUND both plants animals
  • FUNCTION package distribute proteins
    produce lysosomes
  • STRUCTURE resembles stack of pancakes

17
CHLOROPLAST
  • FOUND plants
  • FUNCTION converts light energy ? chemical
    energy
  • site of photosynthesis
  • STRUCTURE
  • Grana (PSN membranes)
  • Stroma (surrounding space)

18
LYSOSOME
  • FOUND animals
  • FUNCTION dispose unwanted materials
  • STRUCTURE filled with digestive enzymes

19
VACUOLE
  • FOUND both plants animals
  • FUNCTION water storage
  • STRUCTURE
  • Plants 1 large
  • Animals several small

20
PLASTID
  • FOUND plants
  • FUNCTION stores pigments (color) food
    (starch)
  • STRUCTURE hollow sac surrounded by double
    membrane contain own DNA

21
CYTOSKELETON
  • FOUND animals
  • FUNCTION support movement
  • STRUCTURE
  • Microfilaments
  • (muscle contractions)
  • Microtubules
  • (internal scaffolding)
  • Cillia
  • (external hairs help move)
  • Flagella
  • (tail aids in movement)

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