Diversity of Life Flashcards
Phylogenetics
Reveals ‘relatedness’
tree of life domains
bacteria, archaea, eukaryota
How are organisms categorised
Linnaean classification, phylogenetic analysis
Linnaean classification
increasingly defined taxonomic groups
Taxonomic units
taxon
Order of Linnaean classification
Species- genus- family- order- class- phylum- kingdom - domain
what is used for phylogenetic analysis
rRNA gene sequences
How to make phylogenetic trees
isolate dna, amplify rRNA sequences, compare, make tree
systematics
study of diversity and relatedness
electron microscopy
high resolution
types of microscopy
Bright-field, phase-contrast, dark-field, electron
function of peptidoglycan
gives shape, resists pressure
structure of peptidoglycan
Amino sugar backbone (NAG,NAMA) joined by peptides
role of penicillin
cut peptide link in amino backbone of peptidoglycan of cell wall
cell lysis start product
lysozyme
cell lysis result
cell in spherical shape bursts
monotrichous flagella
1 on end
amphitrichous flagella
1 on both ends
lophotrichous flagella
lots on one end
peritrichous flagella
all over, covered
point in binary fission where cells new walls will form
septum
Archaea nucleus?
no nucleus
archaea chromosome shape
circular
Archaea organelles?
none