Chapter 2 Vocabulary

Edit Answers
1234567891011121314151617181920212223
Across
  1. 3. part of a eukaryotic cell that directs cell activity and contains genetic information stored in DNA
  2. 5. large macromolecules that does not dissolve in water
  3. 11. a macromolecule made up of one or more sugar molecules;usually the body's major source of energy
  4. 13. the diffusion of water molecules only through a membrane
  5. 14. states that all living things have one or more cells; cells are the smallest unit of life; new cells come from preexisting cells
  6. 15. a reaction that eukaryotic and prokaryotic cells can use to obtain energy from food when oxygen levels are low
  7. 16. the process by which molecules pass through a cell membrane using special proteins called transport proteins
  8. 18. the movement of substances from an area of higher concentration to an area of lower concentration
  9. 19. substance in cells that forms when many small molecules join together
  10. 22. fluid inside a cell that contains salts and other molecules
  11. 23. a macromolecule that forms when long chains of molecules called nucleotides join together
Down
  1. 1. a series of chemical reactions that convert energy from food molecules into usable energy called ATP
  2. 2. the movement of substances through a cell membrane without using the cell's energy
  3. 4. membrane-surrounded component of a eukaryotic cell with a specialized
  4. 6. a long chain of amino acid molecules
  5. 7. a series of chemical reactions that convert light energy, water, and carbon dioxide, CO2, into food
  6. 8. the movement of substances through a cell membrane using the cell's energy
  7. 9. network of threadlike proteins joined together that giver a cell its shape and helps it to move
  8. 10. the process during which a cell takes in a substance by surrounding it with its cell membrane
  9. 12. a process by which glucose, a sugar, is broken down into smaller molecules
  10. 14. a membrane-bound organelle that uses light energy and makes food; process is called photosynthesis
  11. 17. a flexible covering that protects the inside of a cell from the outside environment
  12. 20. the process during which a cell's vesicles release their contents outside the cell
  13. 21. the stiff wall outside a plant cell's cell membrane that protects a cell from viruses & other harmful organisms