Epic Quest Bio The case files
Case No. 93 · have you seen this molecule?

Catalase

why peroxide fizzes on a cut

File sealed

The detectives are still writing this one up. The poster and the facts are below; the film and the interrogation room open soon.

Booking photographs

Catalase, front view, against a height chart in nanometers
FRONT
Catalase, side view
SIDE · PDB 7CAT

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, a line every 2 nm. A medium potato is about seven million times wider.

Rap sheet

Answers to
Catalase. This one’s a cow’s, from the liver.
Height
10.5 nm. About as wide as it is tall.
Weight
390 zeptograms
Build
Four quarters, each with an iron atom at its heart.
Habits
Splits hydrogen peroxide into water and oxygen. The fizz is the oxygen.
Known for
Speed. Each one splits millions of peroxide molecules a second.
Associates
Nearly everything that lives with oxygen. Potatoes have their own.
First seen
By the chemist who discovered hydrogen peroxide.
Last seen
A 5 mL tube marked POTATO in the fridge at HQ.
10,000,000,000,000,000

of its potato cousins in a medium potato, roughly.
Potatoes vary. You’ve never seen one.

The poster on the street

The wanted poster for Catalase

This is the photocopied wanted poster for Catalase, No. 93. They were made for noticeboards around Boston, Cambridge and the rest of the east coast.

Found one? Scan its QR code with your phone. If you're a signed-in player, the sighting goes on your record with +1 XP.

Not a player yet? Join the Epic Quest: the real role-playing game of Molecular Reality, a nanopore lab, with the CEO as gamemaster.