Biology

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Across
  1. 2. Cycle- is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
  2. 4. any of the fine branching blood vessels that form a network between the arterioles and veins
  3. 5. a structure within a cell that carries out specific functions to support the life of the cell; functions include bringing in nutrients, removing wastes, generating and releasing energy for the cell to use, making substances that the cell needs and reproducing
  4. 7. the movement of molecules or other particles from and area of high concentration to an area of low concentration until they are distributed
  5. 8. the number of molecules of a substance in a given volume
  6. 12. the ability to grow new cells to replace damaged or lost body components
  7. 14. Blood Cells- blood cells that carry oxygen and carbon dioxide in the blood
  8. 16. the fourth phase of mitosis, when the membrane surrounding the nucleus re-forms, creating two new nuclei
  9. 17. stage in the cell cycle when the contents of the nucleus separate into two identical copies
  10. 19. any of the many tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place
  11. 20. different tissues working together to perform a specific task
  12. 21. specialized cells working together to perform a specific function; the four major types of human tissue are muscle, connective, nervous, epithelial
Down
  1. 1. Imaging Technology- technologies that are used to make images of cells, tissues, and organs
  2. 3. Exchange-The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air
  3. 4. the stage in the cell cycle when the cytoplasm and organelles divide into two identical, separate cells
  4. 6. process or action by which one thing absorbs or is absorbed by another
  5. 9. system- a group of organs that work together to perform one or more functions. Organs make up an organism. In the human body, major systems are the circulatory system, the respiratory system, the nervous system and the digestive system.
  6. 10. the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of mitosis
  7. 11. the first phase of mitosis, when the nucleus and nuclear membrane disappear and chromosomes form
  8. 13. the third phase of mitosis, when all the chromosomes separate and move to opposite ends of the cell
  9. 15. the second phase of mitosis, when the chromosomes align in the center of the cell
  10. 18. the movement of water molecules across a membrane in response to concentration differences