Gas exchange
Gas exchange is the physiological process by which gases move passively by diffusion across a surface.
At a glance
Key signals
25% cross fields · reaches 7 more
- Biology
- Physiology
- Explanation
- Examples
- Misconception
- Sourced relations 4
- 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
Circulatory systemenablesGas exchangeEstablished
circulatory system enables gas exchange.
Mechanism: The circulatory system serves gas exchange: blood carries oxygen from the lungs to every cell and returns carbon dioxide to be breathed out.
- Biology 2e (OpenStax) (2018) verified
Enables · leads to
Gas exchangeenablesCellular respirationEstablished
gas exchange enables Cellular respiration.
Mechanism: Gas exchange feeds cellular respiration: it supplies the oxygen cells burn and removes the carbon dioxide they produce.
- Biology 2e (OpenStax) (2018) verified
System context
Gas exchangeis aDiffusionEstablished
gas exchange is a kind of Diffusion.
Mechanism: Gas exchange is diffusion: oxygen and carbon dioxide move across a moist surface from where each is more concentrated to where it is less.
- Campbell Biology — demonstrates this case · verified · moderate evidence · Gases move between blood and air by diffusion down their partial-pressure gradients across the respiratory surface. (Gas Exchange)
Structural role & consequence
Interpreted from the current atlas graph — what the connections mean, not just how many there are.
25% of its relationships cross field boundaries, reaching 7 other disciplines — unusual in a discipline where most concepts stay within their field.
structural · Structural graph analysis — not a claim of importance, causation or history.
Directly enables 1 concept; following enables/causes relations, 2 concepts are downstream across 3 disciplines.
structural · Follows only enables/causes dependency edges — not general relatedness.
Currently dark in the atlas: no key date stored · 3 of 4 of its relations lack claim-level evidence.
atlas representation · Describes the current Thinking OS representation, not the state of the world.
Builds on 1 foundation (requires / depends-on / derived-from / emerges-from).
structural · Structural graph analysis — not a claim of importance, causation or history.
cross-field
3 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 1 foundation relation. 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, Oxygen (O₂) and Circulatory system.
Through this lens it connects to Circulatory system.
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?”
Diffusion & spread12 disciplines · 4 concepts
Concepts
shares a mental model · crosses a discipline boundary
shares a mental model
shares a mental model
shares a mental model
Mental models at work here
- Connects 4 other ideas across 2 disciplines.
- A cross-disciplinary bridge — its connections reach into 7 other fields.
- Most of its connections are of the “Cause & effect” kind.
- It exercises 1 reusable thinking pattern.
Derived from the graph’s real structure — observations, not a score.
Sources
- Wikipedia (English & German editions) verifiedmoderate evidence
- Wikidata verifiedmoderate evidence
- Biology 2e (OpenStax) (2018) verified