Biology Crossword

2. separates the interior of the cell from the outside environment
7. the specific region of an enzyme where a substrate binds and catalysis takes place
8. dynamic structure that serves many roles in the cell
10. an organic compound such as sugar or starch, and is used to store energy
12. a biological catalyst and is almost always a protein.
13. process in which relatively small molecules, called monomers, combine chemically
14. the membrane-enclosed organelle within a cell that contains the chromosomes
16. plant cell organelles that convert light energy into relatively stable chemical energy
17. the study of living things
18. naturally-occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement

1. movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration
3. atoms or the membrane-enclosed organelle within a cell that contains the chromosomes small molecules that bond together to form more complex structures
4. helps process and package proteins and lipid molecules
5. fatty, waxy, or oily compounds that are soluble in organic solvents and insoluble in polar solvents such as water
6. generate most of the chemical energy needed to power the cell's biochemical reactions
9. the smallest part of a living thing that can carry out the activities needed for life
10. a structural layer surrounding some types of cells, just outside the cell membrane
11. a process that involves the movement of molecules
14. large biomolecules that play essential roles in all cells and viruses
15. membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers