Question: where does the initial breakdown of glucose occur
[{'answer': 'mitochondria of the cell', 'provenance': [{'wikipedia_id': '214573', 'title': 'Carbohydrate catabolism', 'start_paragraph_id': 1, 'start_character': 394, 'end_paragraph_id': 1, 'end_character': 418, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '214573', 'title': 'Carbohydrate catabolism', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 481, 'bleu_score': 0.5761681189115241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13024933046124561889}, 'section': 'Section::::Abstract.'}]}]