Biology Topic Practice

The Rise of Superbugs

Antibiotic resistance is a significant threat to global health, caused by the evolution of bacteria.

How do bacteria become resistant to antibiotics?

What is The Rise of Superbugs?

"Antibiotic resistance occurs when bacteria change in response to the use of medicines, making them harder to treat."

Question 1

Why do antibiotic-resistant bacteria become more common in a population?

Question 2

Why is antibiotic resistance a serious problem?

Question 3

Select why is antibiotic resistance a serious problem?

Evolution of Resistance

Mutations occur naturally in bacterial DNA.

Some mutations allow the bacteria to survive the antibiotic.

These bacteria reproduce rapidly, passing on the resistance gene.

Exam Tip

MRSA is a well-known "superbug" that is resistant to many common antibiotics.

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