If you ever feel there is too much game and not enough biology here, this is the update you want...
The previous "highlight blocks" key now scans the scene and displays the name of proteins on screen. You can still show the blocks in the settings menu.
A new "Pathway Viewer" is added in the museum that you can see all unlocked metabolic pathways. Unlock a pathway by dropping the correct small molecule onto the corresponding enzyme.
The Calvin Cycle can now be completed, as well as the synthesis of the first five amino acids (GLU, GLN, ALA, ASP, SER). They are also connected to future cat skin unlocks.
A few biological bugs were fixed, e.g. reversible reaction, enzyme localization etc.
Enjoy~