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Biology 40s Exam - Kingdom Monera
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what are characteristics of kingdom monera
prokaryotic cells
no nucleus or organelles
oldest life form
unicellular
aerobic or anerobic
cell walls with peptodoglycan
define aerobic
bacteria that need O
2
define anerobic
bacteria that live without O
2
bacteria in kingdom monera have cells made of what
peptidoglycan (polysaccharides + amino acids)
what are the 3 forms bacteria
cocci (round) - form clusters
bacilli (rods) - form chains
spirilla (spiral) - single cells only
what are the good functions of bacteria
decompose dead matter in ecosystems
e.coli in small intestine, helps digest food we can't and releases vitamins
lactobacillus ingests lactose in milk
nitrogen-fixing bacteria change inorganic N
2
into nitrates for plants
what are the bad functions of bacteria
cyanobacteria causes damage and slime in waterways
cause food poisoning like cholera from contaminated water or salmonella from raw chicken
respiratory diseases such as tuberculosis and pneumonia
what are examples of "ugly" bacteria
anthrax
: bacteria used in bio-warfare
black plague
: rats with fleas, carried the bacteria
bacterial STI's
: chlamydia, gonorrhea, syphilis
how do bacteria in kingdom monera reproduce
binary fission
conjugation
define binary fission
asexual reproduction
one cell forms two identical cells
lack of genetic variability
allows bacteria to reproduce at incredible rates
define conjugation
sexual reproduction
the process of sexual reproduction in bacteria
a 'bridge' is formed between male and female bacteria and the genetic material is transferred via direct contact
bridge is called pilus
what are dormant bacteria
endospores
when conditions are not favorable, bacteria may form an endospore
how do you kill bad bacteria
antibiotics kill bacteria (not viruses)
viruses are treated with anti-retroviral drugs
penicillin
antibiotic resistant bacteria are hard to treat and are dangerous
Author
KaZuma_t3
ID
293679
Card Set
Biology 40s Exam - Kingdom Monera
Description
biology
Updated
2015-01-24T02:55:29Z
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