Practice mode Reading Comprehension

According to the passage about Alexander Fleming, what did he notice around the mould on his culture plate?

Read the passage: In 1928 the Scottish scientist Alexander Fleming returned from a holiday to find that one of his culture plates of bacteria had been contaminated by a mould. Around the mould was a clear ring where the bacteria had failed to grow. Fleming realised that the mould was releasing a substance that killed the bacteria, and he named it penicillin. However, he struggled to produce the substance in large, pure amounts, and for several years his discovery attracted little attention. It was only around 1940 that a team at Oxford, led by Howard Florey and Ernst Chain, found ways to purify penicillin and test it on patients. By the end of the Second World War it was being made in large quantities and had saved many lives.

Correct answer B. A clear ring where bacteria had not grown

Explanation

The passage states that around the mould there was a clear ring where the bacteria had failed to grow, which led Fleming to his discovery of penicillin.

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According to the passage about Alexander Fleming, what did he notice around the mould on his culture plate?

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