Chemistry of Life

3. The main components of cell membranes.
8. A solution where the concentration of solutes outside the cell is higher than inside.
9. A chain of amino acids held together by peptide bonds.
12. A form of endocytosis; where cells engulf liquid droplets.
15. Respiration that takes place without oxygen.
17. The carbohydrate that forms the cell wall of plants.
18. A process where a constant internal environment is maintained despite changes in the internal and external environment.
19. A lipid composed of glycerol and three fatty acids which are bonded together.
20. The movement of molecules from an area of high concentration to an area of low concentration.

1. A solution where the concentration of solutes outside the cell is equal to inside the cell.
2. A solution where the concentration of solutes outside the cell is lower than inside the cell.
4. Organisms that use energy, usually light, to synthesize their own food.
5. Nutrients made up of one or more sugar molecules.
6. The loss of electrons from an atom or molecule.
7. The movement of materials across a cell membrane using cell energy.
10. A form of endocytosis; where cells engulf solid particles.
11. Large molecules that are made by joining several separate units.
13. A large carbohydrate molecule used by plants to store energy.
14. The diffusion of water molecules.
16. The movement of materials across a cell membrane without the use of energy from the sun.