Cells

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Across
  1. 2. the smallest structural and functional unit of an organism
  2. 8. total of all chemical reactions that take place in our cells
  3. 9. energy producers in the cell that carry our cellular respiration to produce energy for the cell
  4. 11. tough, rigid structure that surrounds the cell membrane and ives the cell a rectangular, box-like shape
  5. 13. the substance in a nucleus that carries the heredity materials that is passed on from generation to generation
  6. 15. a network of membrane-covered channels that transport materials
  7. 17. cell parts that assemble proteins
  8. 18. a cell structure containing digestive chemicals that function to break down food particles, cell wastes and worn-out cell parts
  9. 19. movement of particles from an area of higher concentration to that of a lower concentration
  10. 20. a process in which the chemical energy taken in through food is changed into energy that cells use to carry out activities
  11. 21. a cell structure in which functions are carried for its survival
  12. 22. a structure in cells that sorts proteins and pack them into vesicles
  13. 23. chemical reaction that takes place
  14. 24. jelly-like substance within a cell, containing organelles, water and other life-supporting materials
  15. 26. tiny non-living particles capable of reproducing only when they are inside a host cell; they ahem no nucleus or organelles and are usually disease causing
  16. 27. a thin protective covering that separates the interior of a cell from its surroundings; also controls the movement of particles into and out of the cell
  17. 28. organelle that controls all the activities within a cell
Down
  1. 1. an individual animal, plant, or single-celled life form.
  2. 2. refers to the amount of substance in a given space
  3. 3. a membrane that allows some materials to pass through it but keeps other materials out
  4. 4. any of single celled micro-organisms; some cause diseases
  5. 5. parts of plants that trap energy from the sun and change it into chemical energy
  6. 6. membrane-wrapped structures that carry proteins, nutrients, and water into, out of, and around the inside of a cell
  7. 7. temporary storage compartments that sometimes store waste
  8. 10. diffusion of water particles through a selectively permeable membrane
  9. 12. a state in which there are same number of particles on both sides of the cell membrane
  10. 14. type of cell whose organelles are surrounded by membranes
  11. 16. type of cell whose organelles are not surrounded by membranes
  12. 25. essential nutrients used to build muscles, skin, and hair