Science Words

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Across
  1. 1. movement from an area of higher concentration to an area of lower concentration
  2. 3. one or more sugar molecules
  3. 8. substance that forms by the joining of many small molecules
  4. 10. large macromolecule that does not dissolve in water
  5. 14. membrane-bound organelle that uses light energy and makes food
  6. 15. process by which cells become different types of cells
  7. 17. growing, developing and division
  8. 19. long chains of amino acid molecules
  9. 21. stiff stuff structure outside the cell membrane
  10. 25. a simple cell
  11. 26. directs all cell activities and contains DNA
  12. 27. group of different tissues working together to perform a job
  13. 29. network of thread-like proteins inside a cell
  14. 30. group of similar types of cells that work together to carry out specific tasks
  15. 31. diffusion of water molecules only through a membrane
  16. 32. macromolecule that forms when a long chain of nucleotides join together
  17. 33. living things are made of one or more cells; the cell is the smallest unit of life; new cells come from preexisting cells
  18. 34. division of cells nucules and contents
Down
  1. 2. reaction used to obtain energy from food when oxygen levels are low
  2. 4. when molecules pass through a cell membrane using transport proteins
  3. 5. a complex cell
  4. 6. process during which a cell takes in a substance by surrounding it with the cell membrane
  5. 7. series of chemical reactions that converts energy in food molecules into ATP
  6. 9. process for which something is used
  7. 11. are one of the two identical strands of DNA that makes up a duplicated chromosome
  8. 12. fluid inside a cell that contains salts and other molecules
  9. 13. process by which glucose is broken down
  10. 16. explanation based on scientific knowledge resulting from several observations and experiments
  11. 18. protects the inside of a cell from the environment
  12. 20. division of cells cytoplasm and contents
  13. 22. process during which a cell vesicle releases their contents outside the cell
  14. 23. two new cells that result from mitosis and cytokinesis
  15. 24. structure that holds sister chromatids together
  16. 28. movement of substances through a cell membrane without using energy
  17. 35. membrane-bound cell structure with a specialized function