Chapter 2 Matter

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Across
  1. 7. the determination of the age or date of organic matter using ratio of the carbon isotopes
  2. 9. organelle that performs photosynthesis
  3. 12. acidity or alkalinity of a solution
  4. 13. energy flow through living systems
  5. 15. glucose and starch are ____
  6. 16. single cell organism
  7. 19. all chemical reactions taking place in cell
  8. 20. ___law of thermodynamics states total amount of energy constant and conserved
Down
  1. 1. smallest component of element
  2. 2. energy that is stored
  3. 3. cell with organelles
  4. 4. 60-70% of body is made up of _______
  5. 5. requires sunlight, carbon dioxide and water to produce oxygen and carbohydrate
  6. 6. organism that can produce its own food
  7. 8. carry blueprint of life (DNA and RNA)
  8. 10. ability to do work or create change
  9. 11. type of energy created when food molecules are broken
  10. 14. obtains energy and carbon by consuming other organisms
  11. 17. molecules that contain carbon
  12. 18. basic unit of life