Illustrated cutaway of an acidic lysosome with digestive cargo

CELLULAR RECYCLING · ESCAPE ROOM 46

Lysosome
Escape Room

The recycling system is offline.
Restore the acidic lumen, digest the cargo,
and open all three locks.

90 seconds3 science locksTouch + keyboard

MISSION · RESTORE CELLULAR RECYCLING

Inside the lysosome

TIME REMAINING1:30

LUMEN pH6.40

ATP RESERVE72

RECYCLED CARGO0 / 6

01Acidify
Hold pH 4.5–5.2 for 3 sLocked

02Digest
Process all 6 cargo vesiclesLocked

03Recycle
Export all 6 product batchesLocked

LIVE LYSOSOME CUTAWAYLumen too alkaline

pH 4Acidic working zonepH 7.2

Single membrane · acidic lumen · cytosol outside
Illustrative model; molecules and transporters are not to scale.

Mission paused

CONTROL CONSOLETap or click · immediate input

Proton pump

V-ATPase uses ATP to move H⁺ inward. Switch it off before the lumen becomes too acidic.

Acidic stability: 0 / 3 s

Cargo & enzymes

No cargo inside6 waiting

Choose an enzyme after cargo arrives

Export & reuse

No products ready

The timer, locks, ATP units, pH change rates, 4.5–5.2 working band and batch sizes are game mechanics. Real lysosomal enzyme activity varies with pH and substrate.

MISSION DEBRIEF

Recycling restored

What opened the system?

ATP powers proton pumping into the lysosome. An acidic lumen supports many digestive hydrolases. Enzymes break down matching macromolecules, and the resulting small molecules can return to the cytosol for reuse.

✳

For the curious at heart. A pocket-sized collection of science-inspired games.
Made for a quick break, a little discovery, and one more round.

DESKTOP / TABLET / MOBILE
Your browser is your playground.

MISSION FIELD GUIDE

How to Play

Open all three locks within 90 seconds, or learn at your own pace in untimed practice.

Acidify. Enable the pump (Space). Once pH is around 4.8, switch it off. Hold the highlighted working range for 3 seconds. Pulse the pump when pH drifts upward.
Digest. Admit a vesicle (A). Select protease for protein (1), lipase for lipid (2), or nuclease for nucleic acid (3). Digestion advances automatically while pH is in range and the enzyme matches. Process all six vesicles.
Recycle. Export each ready product batch (E). You may export while the next cargo is digesting. Six exported batches open the final lock.

Pause: P or the Pause button. Help and a hidden browser tab pause the timer. Touch users can tap every control; dragging is unnecessary.

This is a teaching model. Cargo becomes simplified product batches; multiple enzymes and transport pathways cooperate in real cells. The lysosome does not literally have locks.

Science background: Mindell, Lysosomal acidification mechanisms (2012); The Cell: Lysosomes.

LysosomeEscape Room

Inside the lysosome

Recycling restored

What opened the system?

Lysosome
Escape Room