Biology - Semester 1

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Across
  1. 3. Movement of molecules from high to low concentration
  2. 4. Biomolecule that stores genetic information
  3. 7. Structure where proteins are made
  4. 9. Smallest unit of matter that retains the properties of an element
  5. 12. Rigid structure found in plant cells
  6. 13. Stage where the cell grows and replicates DNA
  7. 14. Cell with a nucleus and membrane-bound organelles
  8. 17. Gel-like substance inside the cell
  9. 19. Protein that speeds up chemical reactions
  10. 22. Smallest unit of life
  11. 24. Type of transport that requires energy
  12. 25. Process cells use to release energy from glucose
  13. 28. Main energy currency of the cell
  14. 29. Stage where chromosomes line up in the middle
  15. 30. A substance formed by chemically bonding two or more elements
  16. 32. Polymer made of amino acids
  17. 34. Organic molecule that includes fats and oils
  18. 37. Organic molecule used mainly for short-term energy
  19. 38. Selectively permeable boundary of the cell
  20. 39. An atom that has gained or lost electrons and carries a charge
  21. 40. Cell without a nucleus
  22. 41. A pure substance made of only one type of atom
Down
  1. 1. Diffusion of water across a membrane
  2. 2. Process plants use to convert light energy into chemical energy
  3. 5. Division of the cytoplasm
  4. 6. Atoms of the same element with different numbers of neutrons
  5. 8. Substance that resists changes in pH
  6. 10. Final stage of mitosis
  7. 11. Division of the nucleus
  8. 15. Stage where sister chromatids separate
  9. 16. Weak bond important for holding water molecules together
  10. 18. Organelle that produces ATP
  11. 20. Organelle that contains DNA
  12. 21. Building block of proteins
  13. 22. Series of events a cell goes through as it grows and divides
  14. 23. First stage of mitosis
  15. 26. Molecule an enzyme acts on
  16. 27. Type of transport that does not require energy
  17. 31. Condensed DNA structure visible during mitosis
  18. 33. Type of bond formed by the attraction of opposite charges
  19. 35. Scale used to measure acidity or basicity
  20. 36. Molecule that contains genetic instructions
  21. 37. Type of bond where electrons are shared