Biology Unit 2

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Across
  1. 5. Pigment in chloroplasts, used to trap light energy during photosynthesis
  2. 8. Type of organism that breaks down biotic compounds into abiotic compounds, recyclers
  3. 9. Sphere of earth, all living things on earth
  4. 13. Nutrient, used in proteins and nucleic acids, must be "fixed" for living things to use, often limited
  5. 14. Type of organism that must eat other organisms to obtain energy
  6. 16. Nutrient, forms the back bone for all macromolecules in living things
  7. 17. Describes a situation in which oxygen is not present
  8. 20. Nutrient, used in phosphates of nucleic acids and phospholipids of membranes, often limited
  9. 24. Substances at the beginning of a chemical reaction, changed into products
  10. 25. Second step of photosynthesis, uses energy in ATP and NADPH to make glucose (C6H12O6) from CO2
  11. 26. Adenosine diphosphate, uncharged energy storage molecule with 2 phosphate
  12. 27. Second step of anaerobic respiration, 2 types include alcoholic and lactic acid
Down
  1. 1. Sphere of earth, all the water on earth
  2. 2. Second step of aerobic respiration, pyruvate is broken down while NADH and FADH2 are made, releases CO2
  3. 3. Process of breaking down glucose to make ATP, starts with C6H12O6 and O2 and ends with CO2 and H2O
  4. 4. Organelle, site of steps 2 and 3 of aerobic cellular respiration
  5. 6. Type of organism that is able to make its own food, base of the food chain
  6. 7. Sphere of earth, all the soil and rocks on earth
  7. 10. Process of using light energy to make glucose, starts with CO2 and H2O and ends with C6H12O6 and O2
  8. 11. First step of aerobic respiration, breaks down glucose (C6H12O6) into pyruvate, make some NADH
  9. 12. Describes a situation in which oxygen is present
  10. 15. First step of photosynthesis, uses sunlight to split H2O and make ATP and NADPH, O2 is released
  11. 17. Adenosine triphosphate, charged energy storage molecule with 3 phosphorus groups
  12. 18. Third step of aerobic respiration, NADH and FADH2 from earlier reactions are used to make 32 units of ATP
  13. 19. Anything that has mass and takes up space, makes up everything
  14. 21. Substances created during a chemical reaction, made from reactants
  15. 22. Organelle - site of photosynthesis
  16. 23. Sphere of earth, all the gases surrounding the earth