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Bacteria
Biology
51
Biology
9th Grade
05/24/2011

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Term
virology
Definition
study of viruses
Term
Iwanowski
Definition
discovered viruses are filterable; tried to find Tobacco Mosaic Virus
Term
Beijerinck
Definition
gave viruses their name: poison in Latin
Term
Stanley
Definition
identified TMV when electron microscope was invented
Term
Lytic
Definition
virus that bursts cells
Term
Lytic cycle
Definition
adsorbtion + penetration (infection), eclipse, lysis
Term
Lysogenic
Definition
has a stage in which a prophage enters the cell(viral DNA that enters cell and does not activate until triggered) ex: Epstein-Barr
Term
retrovirus
Definition
contain RNA and create own DNA when they enter a cell
Term
trnsduction
Definition
carrying of genes from one host cell to another
Term
autoimmunes
Definition
affect immune system, sometimes triggering it to attack itself
Term
cyanobacteria
Definition
photosynthetic, but only contain chloropyll a
Term
prochlorobacteria
Definition
contain both chlorophyll a and b; more like plants than other bacteria
Term
bacillus
Definition
rod shaped bacteria
Term
coccus
Definition
round bacteria
Term
spirillum
Definition
single spiral shell with flagella
Term
diplo-
Definition
two
Term
strepto-
Definition
in chains
Term
staphylo
Definition
in clumps
Term
 Gram +
Definition
bactreia with single-layered cell wall; stains purple
Term
Gram -
Definition
double-layered cell wall; stains red
Term
colony
Definition
a group of bacteria that have all arisen from one original cell
Term
culture
Definition
the act ofgrowing bacteria or a population of bacteria growing in a flask or dish
Term
pure culture
Definition
a culture that contains only one species of bacteria
Term
flagella
Definition
bacteria swims
Term
non-motile
Definition
bacteria "floats"; does not move on its own
Term
spirochete
Definition
rolls to move
Term
autotrophic
Definition
organisms cpable of producing their own food
Term
photoautotrophs
Definition
trap the energy of sunlight
Term
chemotrophic
Definition
use inorganic molecules to make food
Term
heterotrophic
Definition
organisms that must consume organic compounds for food
Term
phototrophic
Definition
trap the energy of sunlight
Term
chemotrophic
Definition
break down organic molecules(most bacteria)
Term
respiration
Definition
process used to break down food to release energy that requires oxygen
Term
obligate aerobe
Definition
must have  oxygen
Term
facilitated aerobe
Definition
use oxygen byt can survive w/o
Term
fermentation
Definition
process used to break down food to release energy that does not use oxygen
Term
obligate anaerobes
Definition
oxygen is toxic
Term
facultative anaerobes
Definition
can tolerate oxygen but do not use it
Term
factors that affect bacteria growth
Definition
temperature, moisture, sunlight, chemicals, antibiotics, antiseptic, disinfectant
Term
fission
Definition
asexual reproduction; simple cell splitting
Term
conjugation
Definition
sexual repreoduction; cytoplasmic bridge forms between cells
Term
endosphere
Definition
conditions are unfavorable and a capsule forms around DNA and some of the cytoplasm
Term
transformation
Definition
DNA from dead cells can be picked up by live ones
Term
transduction
Definition
viruses carry bacterial DNA around
Term
importance of bacteria
Definition
food industry, industrial uses, symbiotic, environment
Term
nutrient flow
Definition
recycle and decompose
Term
decomposers
Definition
break down wastes
Term
nitrogen-fixing
Definition
taking N and changing it into a usable form of nitrogen for plants
Term
diseases(pathogen)
Definition
can damage tissue directly or produce poisons 
Term
vaccines
Definition
from vacca for cow; can be made from dead or weakened pathogens
Term
archaebacteria
Definition
live in harsh environments-similar to those that may have existed on the early planet
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