Shapes of Bacteria Coccus Chain Streptoccus Cluster Staphylococcus Diplococcus Bacillus Chain Streptobacillus Coccobacillus Vibrio curved Spirillum Spirochete
Shapes of Bacteria • Coccus – Chain = Streptoccus – Cluster = Staphylococcus – Diplopcoccus • Bacillus – Chain = Streptobacillus • Coccobacillus • Vibrio = curved • Spirillum • Spirochete
Bacilus Spiral bacterium Spirochete ( Vibrio Spirillum Helicobaterium
Bacillus Spiral bacterium Vibrio Spirillum Helicobaterium Spirochete
Bacterial structures Cell wall Lipopolysaccharides Chromosome Pilus(fimbria) echoic Acids Ribosomes Cytoplasm Inclusions Inclusion Ribosomes Flagellum Capsule or Nucleoid slime laye Cell wall Chromosome Plasmids Plasmid Cell membrane Capsule Flagella Pil Chapter 2 Spores
Bacterial Structures • Cell Wall -Lipopolysaccharides -Teichoic Acids • Cytoplasm -Inclusions • Ribosomes • Nucleoid -Chromosome & Plasmids • Capsule • Flagella • Pili • Spores Chapter 2
The cell wall Gram-positive Gram-negative outer membrane mermbrane outside of cell membrane cytoplasm cytoplasm rigid, protecting cell Hans Christian Gram from osmotic lysis periplasmic space peptidoglycan Gram staining 1884 Gram Positive Gram Negative
The Cell Wall Gram Positive Gram Negative 1884 Hans Christian Gram - outside of cell membrane - rigid, protecting cell from osmotic lysis Gram staining
The Cell wall Grams Serendipitous Stain still forms the basis for defective and imperfect,fn I am aware that as yet it is very identification of bacteria Hans christian gra GRAM十 GRAM Fixation Crystal Violet lodine treatment Decolorization Counter stain (safranin)
Gram’s Serendipitous Stain, still forms the basis for identification of bacteria The Cell Wall “I am aware that as yet it is very defective and imperfect” Hans Christian Gram