Alternative Biochemistries

Connect maintenance, reproduction and evolutionary change.

Compare changed building blocks, solvents and mechanisms.

Distinguish abiotic synthesis from biological activity.

Identify which biological function has been demonstrated.

State what a plausible proposal still must achieve.

Relate bond possibilities to molecular structures.

Compare sites where chemical change can occur.

Predict which surroundings favour mixing and assembly.

Separate favourable reactions from rapidly occurring reactions.

Explain why persistence alone cannot supply metabolism.

Connect solvent properties with reaction environments.

Compare catalysis, heredity and compartment functions.

Trace element roles beyond the carbon backbone.

Follow matter and energy through maintained chemistry.

Connect copying fidelity with evolvable populations.

Compare reaction speed with decomposition rates.

Locate physical conditions for a candidate solvent.

Explain transport and encounter limits.

Identify sources that can maintain chemical work.

Close a matter balance for a proposed system.

Choose a needed function rather than a fictional organism.

Record solvent concentration, temperature and measured outcome.

Predict why stability can differ after molecules join.

Revise an inference using an incompatible bond result.

Specify a missing function and informative comparison.