biology / Living Systems / free

Systems Biology

Connect genes, cells, organs, and environments into one responsive system.

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Many parts are connected. Genes, proteins, cells, and tissues influence one another, so a change in one node can travel through several linked pathways.

systems responsefeedback stabilized · output 26.4%

Focus the idea

input72%

output26.4%

feedback effect21.6%

phasefeedback stabilized

External signal 72%Coupling strength 68%Feedback brake 55%Node turnover 45%System time 70%

The signal is 72, coupling passes 49 into the output, and the network produces 26.4. Changing one node changes the system's response.

This is a small dynamical network, not a whole organism. The feedback brake is delayed and turnover is output clearance, so strong feedback can overshoot and ring while faster clearance damps it. Real systems add multiple timescales, nonlinear thresholds, spatial compartments, noise, and cross-talk between pathways.

04 / PRACTICE

Make the biology yours.

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Answer from the model, then use the explanation to connect the visual mechanism to the biological rule.

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Systems Biology

Make the biology yours.

What does coupling describe in a biological network?