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PCS Living Env.
Photosynthests and Cellular Respiration
| Term | Definition |
|---|---|
| ATP | is one of the most important compounds that cells use to store and release energy. phosphate groups added to ADP |
| Photosynthesis | A process in which light energy, water and carbon dioxide are used to create glucose for energy. |
| Autotroph | uses energy from the sun to make their own food |
| Heterotroph | obtain food by eating other living things |
| chlorophyll | most important photosynthesis pigment - it absorbs light energy |
| pigment | substance that adds color |
| chloroplast | found in cells of leaves , where photosynthesis takes place |
| Thylakoid | disk shaped structures in the chloroplasts |
| Stroma | space outside the thylakoid - fluid filled |
| Light dependent reactions | light is absorbed by pigment - occurs in thylakoid |
| Light independent reactions | trapped energy from the sun is used to make chemical energy called sugar - occurs in stroma |
| ADP | two phosphate groups instead of three. |
| aerobic | oxygen needed |
| cellular respiration | a series of metabolic processes in which energy found in carbohydrates is transferred to ATP |
| anaerobic | no oxygen needed |
| mitochondria | organelle where energy is released |
| Cristae | inner lining of mitochondria - makes 32 ATP |
| matrix | a material in which something develops such as an organelle |
| Glycolysis | break down glucose into 2 pyruvate molecules - 2 ATP |
| Kreb's Cycle | citric acid cycle- occurs in mitochordria - pyruvate molecule is broken down into carbon dioxide makes 2 ATP |
| Electron Transport Chain | oxygen is released to make lots of ATP |
| Pyruvic Acid | a yellowish organic acid which occurs as an intermediate in many metabolic processes, especially glycolysis. |
| Fermentation | Alcoholic - sugar is converted into cellular energy - yeast Lactic acid - occurs in muscle cells - sore muscles |
Created by:
cboula
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