Process of Cellular Respiration

Science, Grade 6

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Cellular respiration occurs in two stages. Stage one occurs in the cell's cytoplasm and stage two occurs in the mitochondria.

During stage one, glucose is broken down into smaller molecules and a small amount of energy is released.

In stage two the smaller molecules combine with oxygen to produce water, carbon dioxide, and a large amount of energy.

The energy produced is in the form of ATP and heat.

ATP is a molecule that fuels cellular activities. The heat energy helps an organism maintain a healthy body temperature.

The carbon dioxide and water that is produced during respiration leaves our bodies through exhalation.