Respuesta :

Answer:

1. Glycolysis

2. Pyruvate

Explanation:

Glycolysis is the first stage of cellular respiration and does not require the presence of oxygen. It occurs in the cytoplasm. Glycolysis breaks down one molecule of glucose and obtains two molecules of pyruvate. It includes a series of ten reactions.  Each of these reactions is catalyzed by specific enzymes.  One molecule of glucose forms 2 molecules of pyruvate, 2 ATP and 2 NADH via glycolysis. Here, the ATP formation occurs by substrate-level phosphorylation only.

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