The Reaction That Gets Dragged Along

You'll learnhow a favourable reaction can drive an unfavourable one, what the two have to share, and what the pairing does not change.

One reaction will not run on its own, and inside a living cell it runs all day long. A second reaction, running hard right beside it, is dragging it along — and no rule of thermodynamics is bent to do it. Twelve short steps; press Next for each one.

12 STEPS · 6 QUICK CHECKS · ΔG VALUES ADD · A SHARED INTERMEDIATE IS REQUIRED · v2

one gear stuck · one gear driving · one shared piece between them

Before you start

What you're looking at

A gear standing for a reaction that will not run on its own.

The question

Its ΔG is positive, so it should be stuck. How does a cell run it anyway?

Step 1 / 12