Metabolism
The set of chemical reactions that release and use energy to keep a living thing alive.
At a glance
Key signals
11% cross fields · reaches 11 more
- Biology
- Biochemistry
- Physiology
- Explanation
- Examples
- Misconception
- Sourced relations 7
- Attribution
Dependencies
What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.
Foundations · builds on
CatalysisenablesMetabolismEstablished
catalysis enables Metabolism.
Mechanism: Catalysis makes metabolism possible: without enzymes speeding them up, the thousands of reactions that keep a cell alive would run far too slowly.
- Biology 2e (OpenStax) (2018) verified
DigestionenablesMetabolismEstablished
digestion enables Metabolism.
Mechanism: Digestion breaks food into small molecules like glucose that metabolism can then use for energy and building.
- Biology 2e (OpenStax) (2018) verified
EnzymeenablesMetabolismEstablished
enzyme enables Metabolism.
Mechanism: Enzymes are biological catalysts that speed up the chemical reactions of metabolism without being used up.
- Biology 2e (OpenStax) (2018) verified
System context
Metabolismis aEnergy transferEstablished
Metabolism is the living body's energy transfer.
Mechanism: Metabolic reactions move energy from food into the chemical stores a cell can spend on growth, movement and repair.
- Biology 2e (OpenStax) (2018) verified
Bacterial metabolismis aMetabolismEstablished
bacterial metabolism is a kind of metabolism.
Mechanism: Bacterial metabolism is metabolism at its most varied.
- Wikipedia (English & German editions) verifiedmoderate evidence
- Microbiology (OpenStax) (2016) verification pendingmoderate evidence
Cellular respirationis part ofMetabolismEstablished
Cellular respiration is part of metabolism.
Mechanism: Cellular respiration is a core part of metabolism: it breaks down glucose with oxygen to release the energy that powers the cell's other reactions.
- Biology 2e (OpenStax) (2018) verified
Structural role & consequence
Interpreted from the current atlas graph — what the connections mean, not just how many there are.
Currently dark in the atlas: no key date stored · 9 of 9 of its relations lack claim-level evidence.
atlas representation · Describes the current Thinking OS representation, not the state of the world.
Builds on 3 foundations (requires / depends-on / derived-from / emerges-from).
structural · Structural graph analysis — not a claim of importance, causation or history.
Exercises 2 annotated mental models — a concept that connects several thinking patterns.
curated · Curated annotations, not a derived measure.
Structural neighbourhood: 9 → 38 → 139 concepts reachable within 3 hops.
structural · Structural reach — being reachable is not the same as being understood.
cross-field
8 within-field, 1 cross-field
Strengths & constraints
Constraints
- Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
- No dated history stored — the atlas records no key date for this concept. atlas representation
Conditions
- Its dependency reading rests on 3 foundation relations. structural
- Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural
Dependency radial
What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.
Seen through each discipline
How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.
Through this lens it connects to Cellular respiration, Energy transfer, Catalysis and Enzyme.
Through this lens it connects to Catalysis, Bacterial metabolism and Enzyme.
Through this lens it connects to Surface-area-to-volume ratio.
Metabolism is studied in this field.
Through this lens it connects to Energy transfer.
Related ideas to explore
Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.
This idea also appears in…
The same structure shows up in other disciplines. These are real recurrences drawn from the graph — a starting point for asking “what carries over, and what changes?”
Energy transformation30 disciplines · 48 concepts
Stocks and flows36 disciplines · 34 concepts
Concepts
shares a mental model · shares a mental model
shares a mental model · shares a mental model
- EnergyPhysics
shares a mental model · shares a mental model
shares a mental model
shares a mental model
shares a mental model
Metabolism is all the chemistry inside a living thing that handles energy — breaking down food to release energy and using it to grow, move and repair.
Mental models at work here
Energy transformation
Energy is never created or destroyed; it changes from one form into another, and some is always lost as heat.
Follow the energy: where did it come from, what form is it in now, and where does it go next?
Stocks and flows
A stock is an amount that accumulates; flows are the rates that add to or drain it. The stock changes only when inflow and outflow differ.
Think of a bathtub: the water level (stock) rises or falls depending on the tap (inflow) and the drain (outflow).
- Connects 9 other ideas across 7 disciplines.
- A cross-disciplinary bridge — its connections reach into 11 other fields.
- Most of its connections are of the “Cause & effect” kind.
- It exercises 2 reusable thinking patterns.
Derived from the graph’s real structure — observations, not a score.
Sources
- Biology 2e (OpenStax) (2018) verified
- Biology 2e — 4.1 Studying Cells (OpenStax) (2018) verified