Across
- 5. membranes"
- 6. matrix of a chloroplast, in which the grana are embedded.
- 8. is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient.
- 9. organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
- 11. organism deriving its nutritional requirements from complex organic substances.
- 13. carbon fixation pathway that evolved in some plants as an adaptation to arid conditions that allows a plant to photosynthesize during the day, but only exchange gases at night.
- 15. reaction,the reaction of something, especially the iris of the eye, to different intensities of light.
- 17. green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place
- 18. biochemical mechanism in plants by which chlorophyll absorbs light energy for photosynthesis. There are two such mechanisms ( photosystems I and II ) involving different chlorophyll-protein complexes.
Down
- 1. stacks of thylakoids embedded in the stroma of a chloroplast
- 2. transport chain,shuttles electrons from NADH and FADH2 to molecular oxygen
- 3. of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana.
- 4. of a class of mainly yellow, orange, or red fat-soluble pigments, including carotene, which give color to plant parts such as ripe tomatoes and autumn leaves. They are terpenoids based on a structure having the formula C40H56
- 7. process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
- 8. pathway,A metabolic pathway where CO2 is first added to phosphoenolpyruvate by the enzyme, PEP carboxylase,producing the four-carbon compound within mesophyll cells that is later transported to the bundle sheath cells where the CO2 is to be released for use in the Calvin cycle
- 10. pores in the shoot epidermis of plants.
- 12. green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.
- 14. fixation,the process by which plants assimilate carbon from carbon dioxide in the atmosphere to form metabolically active compounds.
- 16. natural coloring matter of animal or plant tissue.
- 17. cycle,a process that plants and algae use to turn carbon dioxide from the air into sugar