Mibo stuvia Study guides, Class notes & Summaries

Archaeal phylogeny - Answer Difficult to culter & PCR Genomes are recombinogenic classifications are frequently under revision Archaeal Cell Wall does not have peptidoglycan but has - Answer pseudopeptidogylcan The archaea Cell wall stains - Answer gram positive or negative the archaeal cell wall has NAG and no NAM but - Answer N-Acetyltasamunyronic acid T/F the archaeal cell wall is NOT susceptible to cell wall antibiotics - Answer True Archaeal lipids in bacteria have - Answe...

millimeter (mm) - Answer 10^-3 micrometer (um) - Answer 10^-6 nanometer - Answer 10^-9 Microbes - Answer Organisms and acellular agents too small to be seen by the unaided eye Robert Hooke - Answer made first compound microscope, coined the term "cell" Antoine van Leeuwenhoek - Answer built single-lens magnifier, first to observe single-felled microbes Francesco Redi - Answer meat and maggots research, disproved theory that microbes spontaneously generated Lazzaro Spallanz...

frederick griffith - Answers studied streptococcus pneumoniae in mice - hypothesized that bacteria could "transfer" information to each other - S strain -> host death - R strain -> not fatal - pre-killing S strains prevents illness - killed S plus live R is fatal conjugation - Answers horizontal gene transfer requiring cell to cell contact - two cells brought together by pilus on the donor - relaxase assists in DNA transfer - requires presence of transferable plasmids -> co...

Microbial size definition - Answer organisms and acellular agents too small to be seen by the unaided eye contradictions to this definition - Answer -supersize microbial cells -microbial communities -viruses You are caring for a patient actively infected with Mycobacterium tuberculosis. Size of contaminated respiratory droplets are nm in size. Standard surgical masks are designed to block particles larger than 5 μm. Will wearing a standard surgical mask be an effective form of prot...

microbe - Answer a living organism that requires a microscope to be seen 2 types of microbial organisms - Answer prokaryotes [cell lacks nucleus] -archaea -bacteria eukaryotes [cell w/ nucleus] -algae/plants -fungi/animals -protists 3 domains of life - Answer Bacteria, Archaea, Eukarya normal microbiota - Answer microbes normally present in and on the human body aid digestion prevent diseases by competing with pathogen microorganisms in environment - Answer recycling of n...

catabolism - Answer the breakdown of complex molecules into smaller molecules for energy anabolism - Answer reactions that build cells which require energy communal catabolism - Answer communities participate in a joint catabolic effort to catabolize a substrate polysaccharide utilization locus - Answer a slightly different set of genes used by different xyloglucans to digest polysaccharides horizontal gene transfer - Answer the transfer of genetic material outside of binary fission;...

conversion from mm to micrometer to nanometer - Answer 1 mm = 1,000 micrometers 1 micrometer = 1,000 nanometers Robert Hooke () - Answer built first compound microscope observed mold, fleas, cork coined the term "cell" Antonie can Leeuwenhoek () - Answer -built magnifiers -first to observe single cell organisms...called them "small animals" theory of spontaneous generation - Answer - states that living organisms can arise from non-living matter Francesco Redi () - Answer ...

Hooke - Answer -coined term cells -made first microscope Spontaneous generation - Answer Living organisms appear from non-living matter Needham - Answer -for spontaneous generation -boiled uncovered broth and it became cloudy Spallanzani - Answer -against spontaneous generation -did one broth uncovered and one covered and boiled each Pasteur - Answer -against spontaneous generation -swan neck flask -pasteurization -silk worm Koch (not postulates) - Answer -link between micr...

millimeter (mm) - Answer 10^-3 micrometer (um) - Answer 10^-6 nanometer - Answer 10^-9 Microbes - Answer Organisms and acellular agents too small to be seen by the unaided eye Robert Hooke - Answer made first compound microscope, coined the term "cell" Antoine van Leeuwenhoek - Answer built single-lens magnifier, first to observe single-felled microbes Francesco Redi - Answer meat and maggots research, disproved theory that microbes spontaneously generated Lazzaro Spallanz...

Genome - Answer all the genetic material the organism contains Vertical transmission - Answer -from parent to offspring -same species (binary fission) Horizontal transmission - Answer -transfer of small pieces of DNA from one cell to another -different or same species 1) transformation 2) conjugation 3) transduction Transformation - Answer The process of importing free DNA into bacterial cells, cells need to be competent to do this (dead bacteria to live) Dr. Griffith - Answe...