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Bact and Vir C19

Bacteria and viruses vocabulary

QuestionAnswer
prokaryotes single celled organism that lack nucleus
bacillus rod shaped bacteria
cocci spherical bacteria ex. streptococcus and pneumococcus
spirilla cork screw shaped bacteria
flagella whiplike structures used for movement
photoautotrophs obtain energy as well as perform photosynthesis
chemoautotrophs obtain energy directly from inorganic molecules
photoheterotroph need organic molecules from nutrition as well as photosynthesis
nitrogen fixation process by which nitrogen is converted into a forem plants can use
pathogens disease causing agents in bacteria
antibiotics compounds that block the growth and reproduction of bacteria
sterilization destroys bacteria by subjecting them to extreme heat or chemical reaction
viruses particles of nucleic acids, proteins, or lipids that can produce only by infecting living cells
capsid auter protein coat of virus
bacteriaphage viruses that infect bacteria
lytic infection 1) virus enters cell 2) virus makes copy of otself, 3) cell bursts
lysogenic infection host cell makes copies of itself indefinitely
retoviruses contain RNA as their genetic info
prions protein infectious particles
How are prokaryotes identified? 1) shape, 2) chemical nature of cell wall, 3) way they move, and 4) ways they obtain energy
obligate aerobe require a constant supply of oxygen (cellular respiration)
obligate anaerobe do not require oxygen-may in fact be poisoned by oxygen.(fermentation) Clostridium botulinum found in soil
facultative anaerobe bacteria that cana survive with or without oxygen can be found just about anywhere
Clostridium botulinum food that has not been properly sterilized can have this bacteria -causes botulism -form of food poisoning.
Created by: kathy205
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