Interaction & Interdependence

Interaction & Interdependence | IB Biology
IB BIOLOGY

Interaction & Interdependence

Connected Systems
Explore how organisms interact with each other and their environment through metabolic processes, signalling systems, and ecological relationships.

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Select a topic below to access comprehensive study materials

Energy & Metabolism

Study the fundamental processes of energy conversion and metabolic pathways that sustain life.

Photosynthesis Cell Respiration Enzymes & Metabolism Energy Transfer
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Communication & Signalling

Understand how organisms communicate through chemical and neural signalling systems.

Neural Signalling Chemical Signalling System Integration Defense Systems
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Ecological Interactions

Explore how populations and communities interact within ecosystems and environmental networks.

Populations Communities Ecosystem Dynamics

📊 Interaction & Interdependence Overview

Complete collection of biological interaction materials

9
PDF Resources
3
Topic Categories
HL
Higher Level
2025
Curriculum

🔄 Key Biological Processes

Understanding how organisms interact through fundamental life processes

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Energy Flow

From photosynthesis to respiration, energy moves through living systems

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Information Transfer

Chemical and electrical signals coordinate biological functions

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System Integration

Multiple systems work together to maintain life and respond to change

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Defense Mechanisms

Organisms protect themselves through immune and behavioral responses

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Population Dynamics

Species interact within communities and shape ecosystem structure

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Metabolic Networks

Enzymatic pathways connect to form complex biochemical networks

🌐 System Connections

How biological systems connect and depend on each other

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Molecular Level

Enzymes catalyze metabolic reactions

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Cellular Level

Cells communicate through signaling

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Organism Level

Systems integrate for homeostasis

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Ecosystem Level

Communities interact and exchange energy