6. Antibiotic resistance (B1.1.2 How our bodies prevent themselves against infectious diseases) Flashcards Preview

Biology GCSE AQA > 6. Antibiotic resistance (B1.1.2 How our bodies prevent themselves against infectious diseases) > Flashcards

Flashcards in 6. Antibiotic resistance (B1.1.2 How our bodies prevent themselves against infectious diseases) Deck (9)
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1
Q

What has overuse and inappropriate use of antibiotics increased?

A

The rate of development of antibiotic resistant strains of bacteria.

2
Q

Why do individual resistant pathogens survive?

A

Antibiotics kill individual pathogens of the non-resistant strain only.

3
Q

Why does the population of the resistant strain increase?

A

Individual resistant pathogens survive and reproduce.

4
Q

What produces new strains?

A

Mutations of pathogens.

5
Q

Why have many strains of bacteria developed resistance to antibiotics?

A

As a result of natural selection.

6
Q

Give example of a resistant strain.

A

MRSA.

7
Q

What should we do to prevent further resistance arising?

A

It is important to avoid over-use of antibiotics.

8
Q

Why is the rate of development of resistant strains slowed down now?

A

Now, antibiotics are not used tp treat non-serious infections, such as mild throat infections.

9
Q

Why does a resistant strain spread rapidly?

A

Antibiotics and vaccination may no longer be effective against a new strain of the pathogen.
People are not immune to it and there is no effective treatment.

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