Chapter 27 - Prokaryotes
Structural features:
Chapter 27 - Prokaryotes Structural features: Nearly all have a cell wall
Chapter 27 - Prokaryotes Structural features: Nearly all have a cell wall made of peptidoglycan rather than cellulose or chitin.
Chapter 27 - Prokaryotes Structural features: Gram staining uses a purple dye and then a red dye
Chapter 27 - Prokaryotes Structural features: Gram staining uses a purple dye and then a red dye.
Chapter 27 - Prokaryotes Structural features: cell membrane cell wall Gram staining
Chapter 27 - Prokaryotes Structural features: cell membrane cell wall Gram staining
Chapter 27 - Prokaryotes Structural features: cell wall Gram staining
Chapter 27 - Prokaryotes Structural features: cell wall Gram staining
Chapter 27 - Prokaryotes Structural features: cell wall Gram-positive. Gram staining
Chapter 27 - Prokaryotes Structural features: cell membrane cell wall outer membrane Gram staining
Chapter 27 - Prokaryotes Structural features: Gram staining outer membrane cell wall cell membrane
Chapter 27 - Prokaryotes Structural features: Gram staining outer membrane cell wall cell membrane
Chapter 27 - Prokaryotes Structural features: Gram staining outer membrane
Chapter 27 - Prokaryotes Structural features: Gram-negative. Gram staining outer membrane
Chapter 27 - Prokaryotes Structural features: Gram staining
Chapter 27 - Prokaryotes Structural features: Lipopolysaccharides.
Chapter 27 - Prokaryotes Structural features: Bacteria stick to their substrates or to one another with fimbriae and pili.
Chapter 27 - Prokaryotes Structural features: Taxis
Chapter 27 - Prokaryotes Structural features: Taxis is movement toward or away from a stimulus
Chapter 27 - Prokaryotes Structural features: Taxis is movement toward or away from a stimulus. Bacteria move with flagella.
Chapter 27 - Prokaryotes Structural features: Bacteria have infoldings of the cell membrane, like mitochondrial christae or the thylakoid membranes.
Chapter 27 - Prokaryotes Structural features: The bacterial chromosome is a single loop concentrated in the nucleoid region.
Chapter 27 - Prokaryotes Structural features: Bacteria can survive harsh conditions for long periods by producing endospores.
Chapter 27 - Prokaryotes Metabolic adaptations:
Chapter 27 - Prokaryotes Metabolic adaptations: Photoautotrophs Chemoautotrophs Photoheterotrophs Chemoheterotrophs
Chapter 27 - Prokaryotes Metabolic adaptations: Photo auto trophs Chemo auto trophs Photo hetero trophs Chemo hetero trophs.
Chapter 27 - Prokaryotes Metabolic adaptations: Obligate aerobes Facultative anaerobes Obligate anaerobes
Chapter 27 - Prokaryotes Metabolic adaptations: Obligate aerobes Facultative anaerobes Obligate anaerobes Nitrogen fixation 2N 2 + 6H 2 O → 4NH 3 + 3O 2.
Chapter 27 - Prokaryotes
Universal ancestor Bacteria Archaea Eukarya Phylogeny:
Chapter 27 - Prokaryotes Universal ancestor Bacteria Archaea Eukarya Based on phenotypic criteria:
Chapter 27 - Prokaryotes Universal ancestor Bacteria Archaea Eukarya Based on molecular data:
Chapter 27 - Prokaryotes Many Archaea are extremophiles:
Chapter 27 - Prokaryotes Many Archaea are extremophiles: Thermophiles Halophiles Methanogens
Chapter 27 - Prokaryotes Many Archaea are extremophiles: Thermophiles Halophiles Methanogens CO 2 + 2H 2 → CH 4 + O 2.
Chapter 27 - Prokaryotes Ecological roles:
Chapter 27 - Prokaryotes Ecological roles: Decomposers Symbiotic relationships
Chapter 27 - Prokaryotes Ecological roles: Decomposers Symbiotic relationships mutualism commensalism parasitism.
Chapter 27 - Prokaryotes
Pathogens:
Chapter 27 - Prokaryotes Pathogens: Exotoxins Endotoxins
Chapter 27 - Prokaryotes Pathogens: Exotoxins Cholera bacteria secrete chloride ions into the gut. Endotoxins Lipopolysacccharides in the outer membrane become toxic when Gram negative bacteria die and breaks down.
Chapter 27 - Prokaryotes Beneficial uses:
Chapter 27 - Prokaryotes Beneficial uses: Fermentation
Chapter 27 - Prokaryotes Beneficial uses: Fermentation Bioremediation
Chapter 27 - Prokaryotes Beneficial uses: Fermentation Bioremediation Leaching of metal ores
Chapter 27 - Prokaryotes Beneficial uses: Fermentation Bioremediation Leaching of metal ores Genetic engineering to produce useful organic products..