Question 1
Tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis.
Describe the risk to the human population of indiscriminate use of antibiotics.
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Tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis.
Describe the risk to the human population of indiscriminate use of antibiotics.
| a | antibiotics block bacterial processes; |
| b | example of bacterial process, e.g. cell wall formation; |
| c | variations exist naturally in a population / some are naturally resistant to the antibiotic; |
| d | bacteria that are not resistant to this antibiotic will die / only resistant will survive (when antibiotic given); |
| e | this characteristic could be passed to next generation; |
| f | (natural selection) leads to changes in the proportions/frequency in the population; |
| g | human population will be exposed to antibiotic resistant bacteria and will not have antibiotic to kill them; |
| h | (antibiotic resistant bacteria) may pass resistance to other bacteria species/types by means of plasmids (so other bacteria species turn resistant too); |