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1-7: Respiration
cellular respiration transfers food energy to ATP.
| Term | Definition |
|---|---|
| Aerobic cellular respiration | The process by which cells use oxygen and breakdown sugar molecules to form ATP, which they use to perform their functions. |
| anaerobic respiration | A way cells make energy without using oxygen. It happens in some bacteria and during hard exercise when your muscles run low on oxygen. |
| glycolysis | The first step in breaking down sugar (glucose) to release energy. It happens in the cytoplasm of the cell and does not need oxygen. |
| fermentation | A process cells use to make energy when there is no oxygen. It produces small amounts of energy and can create substances like lactic acid or alcohol. |
| cellular respiration | The process by which cells break down sugar and other molecules to release energy, which they use to perform their functions. |
| bonds | Connections between atoms in a molecule. These bonds store energy that can be released during chemical reactions. |
| ATP | A molecule that carries energy within cells. It is often called the "energy currency" of the cell because it provides the energy needed for many cellular processes. |
| chemical energy | Energy stored in the bonds of molecules, like the energy in food that our bodies use. |
| inputs | The materials or substances that go into a process, like sugar and oxygen in respiration. |
| outputs | The materials or substances that come out of a process, like ATP and carbon dioxide in respiration. |
| matter | Anything that has mass and takes up space, including solids, liquids, and gases. |
| transformation | The process of changing one form of matter or energy into another, like light energy into chemical energy during photosynthesis. |
| energy | The ability to do work or cause change, found in different forms like light, chemical, and heat. |
| Life processes | The basic activities all living things do to stay alive, like breathing, growing, eating, and reproducing. |
| mitochondria | organelle inside cells that make energy for the cell. They are often called the “powerhouses” of the cell. |
| cytoplasm | A jelly-like substance inside a cell that holds all the cell parts in place and helps them work together. |