B6- Antibiotic-Resistent Bacteria Flashcards
What is antibiotic resistance?
The ability of bacteria to resist the effects of antibiotics that once killed them or inhibited their growth.
How do bacteria develop antibiotic resistance?
Through random mutations in their DNA that lead to changes in characteristics, making them less affected by antibiotics.
Why can bacteria evolve quickly?
Because they reproduce rapidly, allowing for faster evolution and spread of antibiotic-resistant strains.
What are superbugs?
Strains of bacteria that are resistant to most known antibiotics, making them difficult to treat.
Give an example of a common superbug.
MRSA (Methicillin-resistant Staphylococcus aureus).
True or False: Antibiotic resistance is becoming less common.
False.
What factors contribute to the increasing problem of antibiotic resistance?
Overuse and inappropriate use of antibiotics, such as prescribing them for viral infections or non-serious conditions.
Fill in the blank: Taking the full course of antibiotics ensures that _______ are destroyed.
all the bacteria.
How do antibiotics in farming contribute to antibiotic resistance?
They can lead to the development of antibiotic-resistant bacteria in animals, which can spread to humans.
What has been the impact of antibiotic use on the death rate from infectious bacterial diseases?
The death rate has fallen dramatically.
What is a major concern regarding the development of new antibiotics?
The rate of development is slow and costly, making it difficult to keep up with the increasing demand.
What happens when antibiotics are overused?
Naturally resistant bacteria have an advantage, increasing their numbers and spreading resistance.
List two consequences of antibiotic-resistant infections.
- No effective treatment available
- Increased spread of infection between people
What is the role of natural selection in antibiotic resistance?
It favors the survival and reproduction of bacteria with resistance genes, increasing their prevalence.
