Causes of facet disease. Facet disease may arise when the cartilage in a facet joint is worn down as a result of aging, injury or wear and tear. This type of spinal damage can be attributed to arthritis, work, overuse or an injury sustained in an accident.acet disease occurs when a facet joint degenerates. While this can take place at any level of the spine, it most commonly affects the lumbar (lower spine) region. 1  Facet arthritis. 2  Facet joint syndrome. 3  Facet disease.
The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf. Cross section of a leaf, showing the anatomical features important to the study of photosynthesis: stoma, guard cell, mesophyll cells, and vein.
7th Grade Life Science . Photosynthesis & Cellular Respiration Study Guide . 1. What is the overall reaction (formula) for photosynthesis? 6CO. 2 + 6H. 2. O + sunlight C. 6. H. 12. O. 6 + 6O. 2. Carbon Dioxide and Water and sunlight yield Glucose and Oxygen . 2. How does this compare to the overall reaction for cellular respiration? Photosynthesis and Cellular Respiration are the reverse reactions of each other. 3. Where does the energy for photosynthesis come from? The sun . 4. What plant pigment is involved in photosynthesis? Chlorophyll . 5. How does your body get the energy it needs from the food you eat (what process allows cellular energy to be made)? Cellular Respiration . 6. In what organelle of a plant cell does photosynthesis take place? Chloroplast . 7. What are the products of photosynthesis? Glucose and Oxygen . 8. Write the equation for photosynthesis (CO2WS GO). Make sure you memorize it. 6CO2 + 6H2O + sunlight C6H12O6 + 6O2. 9. What is the overall reaction (formula) for cell respiration?