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Across 1. In photosynthesis, the major electron carrier involved in election transport 6. Organisms that cannot make its own food and gets nutrients and energy requirements by feeding on other organisms 7. Process in which NAD+ is regenerated, allowing cells to maintain glycolysis in the absence of oxygen. 8. Law of conservation of energy, can be transformed 9. Series of reactions in which pyruvate is broken down into CO2 inside mitochondria of cells 10. Occurs in yeast and some bacteria to obtain energy without oxygen 13. Metabolic process that does not require oxygen 14. Double membrane organelle that captures light energy and converts it to chemical energy through photosynthesis 16. In chloroplasts on of the stacked, flattened, pigment - containing membranes in which light dependent reactions occur 17. Metabolic process that requires oxygen 20. Convert the pyruvate made during glycolysis to lacticacid when oxygen not available 21. Energy- carrying biological molecule, which when broken down, drives cellular activities 23. Light- independent reactions during photosynthesis in which energy is stored in organic moleclues as glucose 24. One of the stacks of pigment - containing thylakoids in a plant's chloroplast. 25. The major light - absorbing pigments in plants 26. Study of the flow and transformation of energy in the universe 27. Enzyme that converts inorganic carbon dioxide molecules during the final step of the Calvin cycle 28. Anaerobic process; first stage of cellular respiration in which glucose is broken down into two molecules of pyruvate 29. Ability to do work; energy cannot be created or destroyed , only transferred

Down 2. Organism that captures energy from sunlight or inorganic substances to produce its own food supply for other organisms also called a producers 3. Metabolic process in which pyruvate is broken down and electron- carrier molecules are used to produce ATP through electron transport. 4. 6CO2 + 6 H2O --> 6O2 + C6H12O6 5. Energy cannot be converted without the loss of usable energy 11. Catabolic pathway in which organic molecules are broken down to release energy for use by the cell. 12. All of the chemical reactions that occur within an organisms 15. Autotrophes that create food from chemicals 18. Two - phase anabolic pathway in which the sun's light energy is converted to chemical energy for use by the cell 19. Light - absorbing colored molecule such as chlorophyll and caretenoid, in the thylakoid membranes of chloroplasts 22. Fluid filled space outside the grana in which light- dependent reactions take place