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9147270
BACTERIA
Descripción
bacteria
Sin etiquetas
as level
Mapa Mental por
Elaine Lim
, actualizado hace más de 1 año
Más
Menos
Creado por
Elaine Lim
hace más de 7 años
28
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Resumen del Recurso
BACTERIA
CHARACTERISTICS
Prokaryote
lack true nucleus, mitochondria and chloroplasts
Unicellular
multiply via binary-fission (form of asexual reproduction)
STRUCTURE
Cell wall
provide strength, support and rigidity
Plasma membrane
semi permeable ; assist in transport of substances and removal of wastes
Cytoplasm
consist all chemical components needed to sustain life of the bacteria
Ribosome
made up of RNA and proteins
freely floating structure that contributes in the transfer of genetic material
Flagella
tail which allows bacteria to move
Capsule
slime layer covering the outer cell layer
stick cells together and also function as food reserve
Pilli
short protein appendages that fix bacteria to surfaces
link two bacteria together allowing DNA transfer
Plasmid
small circles of DNA transferred between bacterial cells
SHAPES
Spiral
spirilla
spirochaetes
vibrios
Bacilli (rods)
spore-former
flagellate rods
chain of bacilli
Cocci (spherical)
diplococci
streptococci
tetrad
sarcina
staphylococci
RESPIRATION
Aerobic
require oxygen
Non-aerobic
does not require oexygen
SOURCE OF ENERGY
Parasitic
feeds on host cells
present in plants, animals and humans
Symbiotic
have mutual benefit from other organisms
e.g. nitrogen-fixing bacteria
Heterotrophic
unable to produce their own and thus, depend on other organic material
Autotrophic
able to synthesize own food
can be photoautotrophic or chemoautotrophic
Recursos multimedia adjuntos
Bacteria Structure (image/png)
Diplococci (image/png)
Streptococci (image/png)
Tetrad (image/png)
Sarcina (image/png)
Staphylcocci (image/png)
Vibrios (image/png)
Spirochaetes (image/png)
Spirilla (image/png)
Spore Former (image/png)
Chain Of Bacilli (image/png)
Flagelette Rods (image/png)
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