Membrane Movers

Drive the transport van inside or outside the cell, collect the mission cargo, line up with the correct membrane protein, and launch it across the membrane.

Each level changes the mechanism—from ATP pumps to coupled transport and vesicles. Use arrows/WASD, touch-drag, or the on-screen controls.

Membrane Movers

Cell Delivery Corps · load, aim, transport

Score0

Lives∞

Level1/6

Accuracy100%

Time0s

Moves0

Session

Mode

Difficulty

Transport van controls

Cell dispatcher

Start a mission. Collect every required cargo token, align with the named transporter, then launch.

How to play

Move with keyboard, touch-drag, mouse-drag, or the on-screen pad.
Collect the exact cargo recipe shown above the cell.
Align beneath or above the correct transporter and launch through it.
The van changes compartments and the cargo rule changes with every level.
P pauses and M mutes. Practice highlights targets; Challenge uses lives and time.

Knowledge check

1. What directly powers the sodium–potassium pump?

2. What is moved per Na⁺/K⁺ pump cycle?

3. SGLT uses which energy source directly?

Learning outcomes

Distinguish passive movement from energy-requiring transport.
Explain ATP-powered primary active transport.
Model the 3 Na⁺ out/2 K⁺ in pump cycle.
Explain proton pumps and electrochemical gradients.
Compare symport and antiport as secondary active transport.
Connect endocytosis and exocytosis to ATP-dependent bulk transport.

Key concept: active transport moves substances against gradients or moves bulk cargo using cellular energy.

Suggested challenge: finish Hard Mode above 3,000 points with 85% accuracy.

Explore: Why can SGLT move glucose uphill without binding ATP? Why is the sodium gradient still indirectly ATP-dependent?