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Alexander Fleming Trivia Questions

How much do you really know about Alexander Fleming? Below are 31 true or false statements. Click each one to reveal the answer and explanation.

1.

Fleming was known for his messy lab, which he claimed helped him make the penicillin discovery.

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Easy
✓ TRUE

He was famously disorganized and didn’t clean his petri dishes promptly. He later said that if he were tidy, he might never have found penicillin.

2.

Fleming was knighted for his discovery of penicillin in 1944.

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Easy
✓ TRUE

He was knighted in 1944, becoming Sir Alexander Fleming, largely due to penicillin's impact on WWII medicine.

3.

Alexander Fleming discovered penicillin by accident when mold contaminated his petri dishes.

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Easy
✓ TRUE

Fleming returned from vacation to find mold killing bacteria in a dish, leading to his 1928 discovery of penicillin.

4.

Fleming intentionally grew the penicillin mold using bread from his kitchen.

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Easy
✗ FALSE

The mold came from a contaminated petri dish, not bread. Fleming didn't grow it on food; the accidental contamination happened in his cluttered lab.

5.

Fleming's penicillin was first mass-produced by the US during World War II.

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Medium
✓ TRUE

British scientists couldn't mass-produce it. The US government and pharmaceutical companies developed large-scale fermentation methods, saving many wounded soldiers.

6.

Fleming won the Nobel Prize for discovering penicillin all by himself.

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Medium
✗ FALSE

He shared the 1945 Nobel Prize with Howard Florey and Ernst Chain, who purified penicillin and made it a usable drug.

7.

Fleming originally discovered penicillin while searching for a cure for the flu.

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Medium
✗ FALSE

He was studying Staphylococcus bacteria, not the flu; the flu is a virus, and penicillin targets bacteria.

8.

Fleming was a heavy smoker and died of a heart attack related to his habit.

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Medium
✗ FALSE

He died of a heart attack in 1955, but there's no strong evidence linking it directly to heavy smoking; he was known to be a moderate smoker.

9.

Fleming won the Nobel Prize in Physiology or Medicine for discovering penicillin all by himself.

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Medium
✗ FALSE

He shared the 1945 Nobel Prize with Howard Florey and Ernst Boris Chain, who developed it into a usable drug.

10.

Fleming originally called the mold juice 'mould juice' before naming it penicillin.

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Medium
✓ TRUE

He referred to the substance as 'mould juice' in his early notes before settling on 'penicillin' after the Penicillium mold.

11.

Fleming also discovered lysozyme, an antibacterial enzyme found in human tears and saliva.

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Medium
✓ TRUE

In 1922, before penicillin, he discovered lysozyme from a patient's nasal mucus, noting its bacteria-killing power.

12.

Alexander Fleming discovered penicillin entirely by accident in 1928.

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Medium
✓ TRUE

He noticed a mold killing bacteria on a forgotten petri dish. While accidental, he recognized its significance and published his findings.

13.

Fleming won the Nobel Prize alone for the discovery of penicillin.

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Medium
✗ FALSE

He shared the 1945 Nobel Prize with Howard Florey and Ernst Chain, who developed penicillin into a usable drug. Many think he won it solo.

14.

Fleming discovered penicillin while trying to find a cure for the common cold.

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Medium
✗ FALSE

He was studying influenza and staphylococci, not the cold. The mold contamination was from a lab accident, not a targeted search.

15.

Penicillin was mass-produced and widely available by 1929, right after Fleming’s discovery.

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Medium
✗ FALSE

Mass production didn’t happen until the 1940s due to difficulties in growing and purifying the mold. It took Florey and Chain to solve this.

16.

Fleming discovered penicillin by accident when mold contaminated his lab dishes.

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Medium
✓ TRUE

In 1928, Fleming noticed a mold called Penicillium notatum had killed bacteria around it. This serendipitous discovery led to the first antibiotic.

17.

Fleming won the Nobel Prize in Physiology or Medicine alone in 1945.

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Medium
✗ FALSE

Fleming shared the 1945 Nobel Prize with Howard Florey and Ernst Boris Chain, who developed penicillin into a usable drug. Fleming didn't do it alone.

18.

Alexander Fleming discovered penicillin by accident when mold contaminated his lab dishes.

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Medium
✓ TRUE

Fleming noticed a mold (Penicillium notatum) killing bacteria in a petri dish left out while on vacation in 1928, a classic accidental discovery.

19.

Fleming’s first name is actually Alexander—he was not named after a famous scientist.

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Hard
✓ TRUE

Born Alexander Fleming in 1881 in Scotland, he was named before any scientific fame. His surname just happened to match a future bacteriologist.

20.

Fleming was a professional painter before he became a scientist.

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Hard
✗ FALSE

Fleming had no career as a painter. He was a bacteriologist and served in the British Army Medical Corps during WWI. This myth likely stems from his artistic hobby.

21.

Fleming served as a medic in World War I, which influenced his work on antiseptics.

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Hard
✓ TRUE

He saw that antiseptics often harmed soldiers' immune cells more than bacteria. This drove his later search for better antibacterial agents.

22.

Fleming also discovered lysozyme, a natural antibacterial enzyme found in tears and saliva.

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Hard
✓ TRUE

In 1922, before penicillin, Fleming discovered lysozyme from his own nasal mucus, though it wasn't as powerful against harmful bacteria.

23.

Fleming's father died when he was just seven years old.

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Hard
✓ TRUE

His father, Hugh Fleming, died in 1888 when Alexander was seven. This left his mother to raise a large family on a farm in Scotland.

24.

Fleming served as a medic in World War I, which inspired his search for better antiseptics.

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Hard
✓ TRUE

His wartime experience showed him that strong antiseptics often harmed soldiers more than infections, driving his interest in gentler antibacterial agents.

25.

Fleming deliberately grew mold on fruit to test its antibacterial properties before his famous discovery.

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Hard
✗ FALSE

The mold came from an airborne contaminant; Fleming didn't plan the experiment—he noticed it by chance.

26.

Fleming served as a captain in the British Army Medical Corps during World War I.

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Hard
✓ TRUE

He served in WWI as a captain, where his experiences with wound infections drove his interest in antiseptics.

27.

Fleming's first successful use of penicillin was on a patient with a severe eye infection in 1930.

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Hard
✗ FALSE

The first patient treated successfully with penicillin was in 1941 (Albert Alexander), not by Fleming alone; his early 1930s attempts were inconsistent.

28.

Fleming’s laboratory was notoriously messy, which he claimed helped him make discoveries.

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Hard
✗ FALSE

While his lab was disorganized, Fleming never claimed messiness helped—the mold's luck was a rare exception.

29.

Fleming also discovered lysozyme, an antibacterial enzyme found in tears and saliva.

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Hard
✓ TRUE

In 1922, he discovered lysozyme when his nasal mucus dropped onto a bacterial culture. It was his first major finding, predating penicillin.

30.

Fleming discovered lysozyme, an enzyme in tears, before he found penicillin.

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Hard
✓ TRUE

In 1922, Fleming discovered lysozyme from his nasal mucus and tears. It kills some bacteria, but was less effective than penicillin and not widely used.

31.

Fleming was knighted for his work on penicillin in 1944.

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Hard
✓ TRUE

He was knighted as Sir Alexander Fleming in 1944, before the Nobel Prize, recognizing his role in the antibiotic revolution.

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