OCR 21st Century Science - Biology GCSE

B4.2 - How do we know about the mitochondria and other structures?

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B1 - You and your genes
B2 - Keeping Healthy
B3 - Living together - food and ecosystems

B4 - Using food and controlling growth
B4.1 - What happens during cellular respiration?
B4.2 - How do we know about the mitochondria and other structures?
B4.3 - How do organisms grow and develop?
B4.4 - Should we use stem cells to treat damage and disease?

B5 - The human body - staying alive
B6 - Life on Earth - past, present and future

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