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Chapter 8 — Chapter 8 — Bioenergetics
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📘Easy summary
Bioenergetics is the study of how living organisms acquire, convert, store and utilize energy. Plants capture sunlight; animals consume food; energy is stored in ATP.
In redox reactions electrons are transferred: oxidation = loss of electrons, reduction = gain of electrons. This electron flow generates ATP in respiration and photosynthesis.
⭐Key points
- Organisms obtain energy from surroundings.
- ATP is a ready source of energy for growth, movement etc.
- Redox reactions are fundamental to metabolism.
🔬Diagram
🌿Real-life example
Burning fuel and respiring glucose are both oxidations releasing energy.
💡Exam tip
- Short Q1: importance — electron flow generates ATP.
✅Quick check
1. Gain of electrons is:
2. Energy in cells is stored in:
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