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Across 1. contains the genetic material of an organism 5. has an affinity for water 7. getting rid of metabolic waste 8. fatty acid in blood plasma that can cause clogging of arteries 9. movement of molecules through membrane from high to low concentration 11. random movement of particles from a high concentration to a lower one 13. DNA structure in bacteria that provide genetic instructions for cell activities 15. organelle where photosynthesis takes place 16. if foreign particles are engulfed and broken down by certain animal cells 17. excretory organ that excretes urea 18. organelle in cell that can for example degrade waste products in cells 19. found in plant cells. contains mostly water 20. the permanent increase in size and number of cells of an organism

Down 2. the major store of carbohydrate energy in animal cells 3. a group of cells with a similar structure and function 4. energy produced in the mitochondria 6. major source of energy for animals, including humans 10. motility 12. formation of chemical compounds from more simple compounds 14. solution with the same water potential in- and outside of cell