Biological Crossword

2. the movement of water molecules across a membrane in response to concentration differences
5. the third phase of mitosis when the chromosomes separate and move to opposite ends of the cell
6. a structure within a cell that carries out specific functions to support the life of the cell
9. the ability to grow new cells to replace damaged or lost body components
11. the stage in the cell cycle when the contents of the nucleus separate into two identical copies
12. air sacs in the lungs where gas exchange occurs
13. different tissues working together to perform a specific task
14. the smallest blood vessel
15. the fist phase of mitosis when the nucleus and nuclear membrane disappear and chromosomes form

1. the fourth phase of mitosis when the membrane surrounding the nucleus re-forms, creating two new nuclei
3. the number of molecules of a substance in a given volume
4. the stage in the cell cycle when the cytoplasm and organelles divide into two identical, separate cells
7. specialized cells working together to perform a function
8. the second phase of mitosis when the chromosomes align in the center of the cell
10. the stage in the cell cycle when a cell grows and carries out its usual functions, as well as making a copy of its DNA and organelles to prepare for cell division