Respiration is the breakdown of ____ to release energy in cells. It is controlled by ____. The energy released from the breakdown of glucose is used to generate ____. The energy transferred by ATP can be used for cellular activities such as ____ cell contraction, transmission of ____ impulses, ____ synthesis, cell ____ or ____ transport. Respiration has two stages. The first stage of respiration is called ____ and takes place in the ____. It can occur without oxygen. During glycolysis, glucose is broken down into ____ and a ____ energy is produced, only 2 ATP. If ____ is present, pyruvate is broken down into carbon dioxide, ____ and ____ of energy, 36ATP. This takes place in the ____.

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