Flashcards in Monera Deck (21):
-no membrane enclosed nucleus or organelles
-unicellular and small
what make bacteria motile
semi-solid slime layer used as protection for bacteria
loops of dna containing information on bacterial resistance to antibiotics. Also may have some bacterial genes.
spiral bacteria shaped like comma. Cholera
asexual reproduction that bacteria undergo
tough-wall formed around new loop of dna during binary fission that protects the dna during unfavourable conditions
-get energy from light to produce food.
eg. purple sulfur bacteria
-get energy from chemical reactions to produce food.
eg. nitrifying bacteria in soil
decomposers that get food from dead matter.
eg. bacteria of decay in soil
bacteria that take food from a live host and usually harm the host. eg. pneumonia
What are the five factors that affect the growth of bacteria?
-External Solute Concentration
anaerobic. Can respire with or without oxygen.
eg. E Coli
anaerobic. Can only respire in the absence of oxygen. eg. Clostridium Tetani
a chemical produced by a micr-organism that stops the growth of or kills another micro-organism without causing damage to human tissue. eg. streptomycin
bacteria that are resistant to almost all-known antibiotics, eg. MRSA and C-difficile
Growth Curve of bacteria
use of living things or their components to manufacture useful products or carry out useful reactions.
vessels in which biological reactions occur
Continuous Flow Culture
The growth of cells in an open container where nutrients are added and products are continuously removed all the time at a rate which maintains the volume of liquid in the container and the number of cells.
eg. single-cell-protein production, waste water treatment