Unit 2 choice board

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Across
  1. 4. nutrient, used in phosphates nucleic acids and phospholipids of membranes often limited
  2. 6. describes a situation in which oxygen is present
  3. 7. sphere of earth all the water on earth
  4. 11. process of using light energy to make glucose starts with CO2 and H2O and ends with C6H12O6 % O2
  5. 15. sphere of earth, all the gases surrounding earth
  6. 16. organelle site of steps 2 and 3 of aerobic
  7. 17. substances at the beginning of a chemical reaction, changed into products
  8. 18. second step of anaerobic respiration, 2 types include alcoholic and lactic acid
  9. 19. type of organism that is able to make its own food, the base of the food chain
  10. 20. sphere of earth, all soil, and rocks on earth
Down
  1. 1. first step of photosynthesis uses sunlight
  2. 2. anything that takes up space and has mass
  3. 3. organelle-site of photosynthesis
  4. 5. substances created during a chemical reaction made from reactants
  5. 8. first step of aerobic respiration breaks down glucose C6H12)6 into pyruvate, makes NADH
  6. 9. pigments in chloroplasts used to trap light energy during photosynthesis
  7. 10. Adenosine 3 phosphorus groups
  8. 12. nutrient used in protein and nucleic acids, must be fixed for living things to use, often limited
  9. 13. describes a situation in which oxygen is not present
  10. 14. second step of photosynthesis uses energy in ATP and NADPH to make glucose (C6H12O6) from CO2