Chemistry of Life

4. Long chains of carbon and hydrogen joined together
9. The use of cell energy to move materials across a cell membrane
11. The carbohydrate that forms the cell walls of plant cells
12. A form of endocytosis in which solid particles are engulfed by cells
14. A three carbon chain molecule containing three hydroxyl groups
15. A difference in the number of molecules or ions of a substance between adjoining regions
17. An organic molecule that is half of a glucose molecule with the molecular formula C3H6O3
19. A solution where the concentration of solute molecules outside a cell is equal to the molecules inside the cell
20. The raw materials needed for cell metabolism
21. A series of chemical reactions that allow two molecules to bond by the formation of a water molecule

1. A solution where the concentration of solutes outside a cell is lower than that found inside the cell
2. The basic structural units of nucleic acid
3. A solution where the concentration of solutes outside a cell is higher than that found inside the cell
5. The diffusion of water molecules across a selectively permeable membrane
6. The process by which plants use chlorophyll to trap sunlight energy and use it to produce carbohydrates
7. Artificial lipid vesicles
8. Nutrients made up of a single sugar molecule or many sugar molecules
10. A large carbohydrate molecule used by plants to store energy
13. The form of carbohydrate storage in animals
16. The loss of electrons from an atom or molecule
18. The movement of molecules from an area of high to low concentration