Which bacterium is used to produce acetone, butanol and ethanol by fermentation?
Answer
Clostridium acetobutylicum
89685 Intermediate Trivia Questions
89685 public questions at this depth. How many can you answer?
Which bacterium hunts other bacteria by invading and digesting them from within?
Answer
Bdellovibrio bacteriovorus
Which bacterium produces streptomycin, the antibiotic discovered in the 1940s?
Answer
Streptomyces griseus
Which bacterium causes scarlet fever by producing toxins during some Streptococcus pyogenes infections?
Answer
Streptococcus pyogenes
Which bacterium is the main cause of bacterial meningitis in many young children before vaccination?
Answer
Haemophilus influenzae
Which bacterium causes gas gangrene most commonly through toxins that destroy muscle tissue?
Answer
Clostridium perfringens
Which bacterium is famous for forming fruiting bodies and cooperative hunting groups?
Answer
Myxococcus xanthus
Which microorganism is the most common archaeal member of the human gut microbiome?
Answer
Methanobrevibacter smithii
In the 1922 Stern–Gerlach experiment, what happened to a beam of silver atoms passing through a non-uniform magnetic field?
Answer
It split into two beams
Who coined the term “uncanny valley” for human-like robots?
Answer
Masahiro Mori
What was the name of Leonardo da Vinci’s mechanical knight?
Answer
Leonardo’s robot
In marine biology, which bivalve is the largest living species by mass?
Answer
Giant clam
Which fish is widely called the most venomous fish in the world?
Answer
Stonefish
Which shark is known for using its fins to walk across the seafloor?
Answer
Epaulette shark
Which tiny marine snail is commonly called the sea butterfly?
Answer
Pteropod
What defensive behavior lets some sea cucumbers expel internal organs?
Answer
Evisceration
What pigment gives many red algae their characteristic red or purplish color?
Answer
Phycoerythrin
Who invented the modern clinical electrocardiogram?
Answer
Willem Einthoven
Who implanted the first fully internal artificial pacemaker in 1958?
Answer
Åke Senning
Who discovered the blood-clotting factor later known as vitamin K?
Answer
Henrik Dam
Who developed the first widely used rubella vaccine?
Answer
Stanley Plotkin
Which drug was the first effective treatment for syphilis?
Answer
Salvarsan
Which material earned Alan Heeger, Alan MacDiarmid and Hideki Shirakawa the 2000 Nobel Prize in Chemistry?
Answer
Conducting polymers
Which technique earned Kary Mullis the 1993 Nobel Prize in Chemistry?
Answer
Polymerase chain reaction
Which mechanism earned Peter Higgs and François Englert the 2013 Nobel Prize in Physics?
Answer
Higgs mechanism
Which theory earned Max Planck the 1918 Nobel Prize in Physics?
Answer
Quantum theory
Which stellar process did Hans Bethe explain, earning the 1967 Nobel Prize in Physics?
Answer
Energy production in stars
Which compound is the main mineral in the bones and teeth of vertebrates?
Answer
Hydroxyapatite
Which compound is the oxidizing agent in household bleach, with the formula NaClO?
Answer
Sodium hypochlorite
Which compound is the main antifreeze ingredient with the formula HOCH₂CH₂OH?
Answer
Ethylene glycol
Which chemical compound is known as sulfuric acid and has the formula H₂SO₄?
Answer
Sulfuric acid
Which compound is the main component of the mineral gypsum, with the formula CaSO₄·2H₂O?
Answer
Calcium sulfate dihydrate