1/32
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
2 Domains are Prokaryotes which ones
Bacteria & Archaea
Nucleoid
Single Haploid Cell where the DNA is
Prokaryotes have a
Cell Wall
Plasmids
Extra DNA
Bacteria Only
Peptidoglycan in cell wall
2 Types of Gram Staining
Positive & Negative
Gram Positive
Purple, Thick Cell wall, lots of peptidoglycan.
Gram Negative
Pink, Thin peptidoglycan, Lipopolysaccharide (LPS)
Some prokaryotes are
Motile
Taxis
Movement: positive = moving towards stimulus, negative = moving away from stimulus
Flagella is found in all domains but are
Analogous (Convergent Evolution)
How the Flagella works
H+ and ETC
Binary Fission
Asexual, Divide into daughter cell (Identical). Very fast, Makes a lot of offsprings quickly (1 parent = 2 daughter cells)
2 Factors that raise Genetic Diversity
Rapid Reproduction & Mutation
Vertical Gene Transfer
Parent to offspring
Horizontal Gene Transfer
Transfer of Genetic material NOT from parent to offspring
Horizontal Gene Transfer in Prokaryotes
1.) Tranformation
2.) Transduction
3.) Conjugation
Transformation
DNA from Surroundings. Incorporates foreign DNA as Plasmids or into the bacterial genome.
Transduction
Phage transfer Bacterial DNA. The Bacteria is now using the virus to transmit bacterial DNA.
Conjugation
DNA shared between 2 individual Cells. F factor F+= allies to grow Pilus
Everything needs
Energy and Carbon
Cyanobacteria are
Photoautotrophs
Clostridium Botulinum is a
Chemoheterotroph
Obligate Aerobe
Needs O2
obligate anaerobe
O2 will kill must have none
Facultative Anaerobe
Can live with or without O2.
5 groups of bacteria and 4 Archaea
Horizontal Gene Transfer
Proteobacteria
Ancestor of Mitochondria. Includes Mitochondria & other mutualistic Bacteria.
Cyanobacteria
Photoautotroph, Ancestor of Chloroplasts
In Archaea Diversity there are
Prokaryotes, Extremophiles, and cell walls with no peptidoglycan
Halophiles
High Salt Environments
Thermophiles
Very hot environments
Methanogens
Unique to Archaea. Release CH4 - poisoned by O2