Biology A (Salters-Nuffield) A-Level
Fast twitch fibres
What Fast twitch fibres means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Fast twitch fibres
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Reference: Pearson Edexcel
Fibres with fewer mitochondria and less myoglobin but more glycogen and glycolytic enzymes, so they contract powerfully for short bursts.
Topics that use Fast twitch fibres
- Topic 7: Run for your Life (Pearson Edexcel A-Level)
Related terms
- Aerobic respiration
- ATPase
- Biocompatibility
- Carbon dioxide production
- Cellular respiration pathways
- Chemiosmosis
- Coenzymes in respiration
- Electrocardiograms (ECGs)
Using Fast twitch fibres in the exam
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