A
micro-organism
another name for a micro-organism
microbe
a single celled organism
unicellular
an organism whose cell lacks a nucleus & other organelles
prokaryote
name the 3 parts of a bacterium that are sometimes present
capsule
flagella
plasmid
name the 6 parts of the bacterium that are always present
cell wall
cell membrane
cytoplasm
ribosome
storange granule
loop of DNA
name the slimy protective coat of the bacterium cell
capsule
what part of the bacteria is involved in antibiotic resistance?
plasmid
part of the bacteria involved in movement
flagella
name the 3 types of bacteria
rod
spiral
sphere (round / cocci)
pairs
chains
clusters
how do bacteria reproduce
asexually
the method used by a bacterium to reproduce is called
binary fission
the physical process of cell division, which divides the cytoplasm of a parental cell into 2 daughter cells is called __________
cytokinesis
bacteria reproduce every _________ minutes
20 minutes
bacteria can withstand harsh and unfavourable conditions by producing _________
endospores
nutrition is _______________
how an organism gets and uses its food
autotrophic is __________
an organism that makes its own food
an organism that takes in food made by other organisms
what are the 3 factors that affect the growth of bacteria
temperature
ph
oxygen concentration
chemicals produced by micro-organisms to kill other micro-organism are called ___________
antibiotics
list 2 benefits of bacteria
used to convert milk to butter, yogurt & cheese
genetically altered bacteria are used in the production of antibiotics, drugs & vitamins
list 2 disadvantages of bacteria
causes human & plants diseases e.g. TB, food poisoning & strep throat
name the 5 stages in the growth of bacteria
lag
log
stationary
death
survival