Guide, Practice Questions
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, Terms in this set (183)
Classification of life is based on morphological features
DNA material of inheritance, common to all organisms
Most accurate measure of relatedness is genome similarity
first widely compared sequences rRNA
____ are more closely related to eukaryotes archaea
Gram positive cell wall takes up violet dye
Gram negative Cell wall has outer peptidoglycan? membrane that prevents take up of dye.
Appear pink from red counterstain
Bacteria rely on ____ for movement of materials through diffusion
cell
bacteria communicate by chemicals or light
Quorum sensing: triggers biofilm formation
Prokaryotes reproduce by______ which results in fission but can exchange genetic material
horizontal gene transfer which complicates use of sequences to determine
phylogenies
Gram positive bacteria are monophyletic
Obligate anaerobes bacteria that must live in oxygen free environments
obligate aerobes bacteria that require oxygen
facultative anaerobes bacteria that use either aerobic or anaerobic respiration