Summative Review Crossword - A

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Across
  1. 2. Organelle that breaks down glucose in order to provide energy for the cell
  2. 5. Organelle where photosynthesis occurs in the cell
  3. 7. Having two different alleles for a trait
  4. 8. Organelle that controls all the activities of the cell
  5. 9. Organ system responsible for providing the body with oxygen
  6. 11. Organelle that produces proteins in the cell
  7. 13. Organ system that breaks down food into smaller molecules
Down
  1. 1. Having two identical alleles for a trait
  2. 3. Structure that forms the outside barrier of an animal cell (2 words)
  3. 4. With the exception of eggs and sperm, humans have 46 of these structures in their cells (plural)
  4. 6. The gas that is produced in photosynthesis
  5. 10. An organism’s physical appearance
  6. 12. The liquid starting material of photosynthesis
  7. 13. An allele whose trait always shows up in an organism