Exam 2 (part 2) Flashcards
what is bioremediation?
using bacteria and archaea to clean up sites polluted with organic solvents through oil eating microbes
how do we study pros?
enrichment cultures
metagenomics
what is an enrichment culture?
when cells are grown and studies in lab conditions (only applies to some pros)
what are metagenomics?
where dna is collected and sequenced from the environment
- leads to the creation of a phylogeny
- determines if the species is new or already known
why are prokaryotes able to inhabit so many different habitats?
- morphological and metabolic diversification
how do prokaryotes convert compounds into energy>
through their metabolism
prokaryotes differ metabolically in how they:
look on slides
what are phototrophs?
use light to produce ATP
What are chemoorganotrophs?
oxidize organic molecules wit high potential energy to produce ATP
what are chemolithotrophs
oxidize inorganic molecules with high potential energy to produce ATP
what are ways that bacteria and archaea obtain building block components?
- autotrophs and
- heterotrophs
what are autotrophs?
things that synthesice their own compounds with simple starting material
what are heterotrophs
use organic material produced by other organisms
where sis photosynthesis originate?
bacteria and archaea
what is cellular respiration? oxidizes a high energy molecule and reduces a low energy molecule
oxidizes a high energy molecule and reduces a low energy molecule
electron transport chain
look at the graphics on the powerpoint
what happens when a molecule loses an electrok
oxidized
what happens when a molecule gains an electroln
it is reduced
what is the result of the electron transport chain?
generation of ATP
some autotrophs can obtain energy via photosynthesis in which…
light is used to activate pigments which energizes electrons and then produces oxygen
what are cynobacteria
thought to be the first organisms to be able to perform photosynthesis (before only anaerobic respiration was possible)
go look at the slide about cynobacteria
please
details abotu actinobacteria
- rods and filaments
- cause TB and leprosy
details about spirochetes
-corkscrew shape,
- responsible for syphilis and lyme disease
- burrow into the host tissue
details on Chlamydiea
parasite
-spherical
-cause chlamydia
proteobacteria
common in aquatic environments
why are molecules with C-C bonds sought out by organisms?
they release lots of energy used in the synthesis of important compounds
if an electron donor donates an electron then it becomes
oxidized
