Unit 1: Chapter 1: Evolution of Microorganisms + Microbiology Flashcards
organisms too small ot be clearly seen by the unaided eye
microorganisms
cellular organisms:
fungi
protists
bacteria
archaea
acellular organisms:
viruses
viroids
satellites
prions
Five Kingdoms by Robert Whitaker
MoneraProtistaFungi Plants Animals
Three Domains By Carl Woese
Bacteria ArchaeaEukarya
how did carl woese classify his domains?
by comparing ribosomal RNA genes
usually single-celled with a peptidoglycan cell wall. lack membrane bound nucleus. Some are pathogenic
Bacteria
Unique rRNA sequences and membrane lipids. Thrive in extremem environments and nonpathogenic
Archaea
Fungi + Protists
Eukarya
Unicellular, but gernerally larger than archaea and bacteria
Protists
Unicellular or multicellular. Yeast
mold and mushrooms
Fungi
Protozoa + Algae
Protists
Definition of life
Orderly structure
Metabolism
Reproduction
Growth
Responsiveness
Catalytic and structural
Proteins
stores hereditary information which is replicated and passed on to the next generations
DNA
Acts as messenger taking information from DNA and syntehsizing proteins
RNA
the precellular state in the evolution of life. Everything came from RNA
RNA World hypothesis
Most recent organism from which all 3 types of life arose
Last Universal Common Ancestor
Origin of mitochondira, chlorplasts and hydrogenosomes
Endosymbiotic Hypothesis
interaction between 2 organisms in which 1 lives inside the other
endoysmbiosis
anaerobic endosymbiont that makes ATP via fermentation
hydrogenosomes
compare organisms on basis of evolutionary relationsihps
Phyletic Classification systems
comparison of CW structure, biomolecule and nuclotide squecne rRNA
microbial phylogeny
displays evolutionaryl relationship between organisms
Phylogenetic tree