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Photosynthesis and
Cellular Respiration
| Term | Definition |
|---|---|
| Energy | is defined as the ability to do work. |
| Autotroph | are organisms that make their own food. |
| Cellular respiration | actually “burns” glucose for energy. |
| Consumer | they may consume autotrophs or other heterotrophs. |
| Food | consists of organic molecules that store energy in their chemical bonds. |
| Glucose | is a simple carbohydrate with the chemical formula C6H12O6. |
| Heterotroph | are living things that cannot make their own food. |
| Photosynthesis | this process stores energy from sunlight in the chemical bonds of glucose. |
| Producer | They produce food not only for themselves but for all other living things as well. |
| Calvin cycle | this stage combines carbon from carbon dioxide in the air and uses the chemical energy in ATP and NADPH to make glucose. |
| Chemosynthesis | uses chemical energy instead of light energy. |
| Chlorophyll | a green pigment. |
| Electron transport chain | The two electrons are passed from molecule to molecule down the chain. |
| Grana | singular granum. |
| Light reactions | this stage uses water and changes light energy from the sun into chemical energy stored in ATP and NADPH. |
| Photosystem | are groups of molecules. |
| Stroma | is the space outside the thylakoid membranes. |
| Thylakoid membrane | consist of sac-like membranes. |
| Aerobic respiration | that proceeds in the presence of oxygen. |
| Anaerobic respiration | that proceeds without oxygen. |
| Glycolysis | enzymes split a molecule of glucose into two molecules of pyruvate. |
| Krebs cycle | these molecules enter the matrix of a mitochondrion. |
| Alcoholic fermentation | it is used to make bread, wine, and biofuels. |
| Fermentation | this occurs when muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration. |
| Lactic acid fermentation | it is also used by your own muscle cells when you work them hard and fast. |