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Why respiration matters

Why respiration matters

Flowchart of aerobic respiration showing glycolysis in the cytoplasm and the link reaction, Krebs cycle, and oxidative phosphorylation in a mitochondrion Respiration is the enzyme-controlled release of chemical energy from organic molecules, with that energy transferred to ATP. Cells need ATP for active transport, muscle contraction, protein synthesis and nerve impulses.

Respiration releases chemical energy in biological processes Lesson

  1. A Level
  2. /Biology
  3. /Respiration releases chemical energy in biological processes

Step-by-step lessons covering Eduqas A Level Biology Respiration releases chemical energy in biological processes for A Level Biology. Each lesson works through exam-style questions in Component 1, Component 2 and Component 3 format. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.

Lessons

Photosynthesis uses light energy to synthesise organic moleculesRespiration releases chemical energy in biological processesPopulation size and ecosystemsHuman impact on the environment