The chemistry of life

1. - The raw materials needed for cell metabolism.
3. - involves the use of cell energy to move materials across a cell membrane against the concentration gradient.
6. Solution - A solution where the concentration of solute molecules outside a cell is equal to the concentration of solute molecules inside the cell.
8. - Artificial lipid vesicles.
10. -The movement of materials across a cell membrane without the use of energy from the cell.
13. - Nutrients made up of a single sugar molecule or many sugar molecules.
15. - A three - carbon chain molecule containing three Hydroxyl groups.
16. solution - A solution where the concentration of solutes outside a cell is higher than that found inside the cell.
17. - A form of endocytosis in which solid particles are engulfed by cells.
18. - A difference in the number of molecules or ions of a substance between a joining regions.
19. - The carbohydrate that forms the cell walls of plant cells.
20. - The movement of molecules from an area of higher concentration to an area of lower concentration.

2. - A lipid composed of glycerol and three fatty acids which are bonded together.
4. solution - A solution where the concentration of solutes outside a cell is lower than that found inside the cell.
5. - The main component of cell membranes.
7. - A series of chemical reactions that allow two molecules to bond by the formation of a water molecule.
9. - A large carbohydrate molecule used by plants to store energy.
11. Acids - long chains of carbon and hydrogen joined together.
12. - The process by which plants use chlorophyll to trap sunlight energy and use it to produce carbohydrates.
14. - The form of carbohydrates storage in animals.