Basic Chemistry

2. - A solution that resists pH changes.
3. - Hydrophobic molecules, including fats and oils.
7. - A lipid involved in cell membrane structure.
11. Reaction - A reaction where parts of two compounds exchange places.
14. - The basic unit of a chemical element.
15. - Deoxyribonucleic acid, the molecule of heredity.
16. - Ribonucleic acid, involved in protein synthesis.
17. - An atom or molecule with a net electric charge.
20. - A substance that dissolves a solute.
21. - A scale measuring acidity or alkalinity.
23. - A substance that speeds up a reaction without being consumed.
24. - A reaction that joins two molecules and releases water.
27. - Organic compounds used for energy.
29. - A structural carbohydrate in plant cell walls.
35. - The gain of electrons by an atom or molecule.
37. - A stored form of glucose in animals.
38. - Attracted to water.
41. - The maintenance of a stable internal environment.
42. - A molecule that prevents oxidative damage.
45. - The loss of electrons from an atom or molecule.
46. - The breakdown of a compound into smaller parts.
47. - A substance that provides nourishment essential for growth and the maintenance of life.
48. - A positively charged ion.
49. - A chemical process that splits a molecule by adding water.

1. - Fats with no double bonds in fatty acids.
4. - Variants of an element with the same number of protons but different neutrons.
5. - The breaking-down phase of metabolism.
6. - A macromolecule made of amino acids.
8. Reaction - A process that leads to the transformation of one set of chemical substances to another.
9. Radical - An atom or molecule with an unpaired electron, which can cause damage to cells.
10. - Fats with one or more double bonds.
12. - Repellent to water.
13. - The building-up phase of metabolism.
18. - The building block of nucleic acids.
19. Group - A specific group of atoms within a molecule responsible for its characteristic properties.
20. - The substance dissolved in a solution.
22. - A negatively charged ion.
25. - A group of atoms bonded together.
26. - The sum of all chemical reactions in the body.
28. Acid - The building blocks of proteins.
30. - The reactant on which an enzyme acts.
31. - A type of lipid with a four-ring structure.
32. - A protein that accelerates chemical reactions.
33. - A segment of DNA that encodes for a specific protein or function.
34. Bond - A weak bond between polar molecules.
36. - A bond formed through the transfer of electrons.
39. - A bond formed by the sharing of electrons.
40. - The process of combining smaller components to form a larger molecule.
43. - A molecule’s distribution of charge.
44. - Adenosine triphosphate, the energy currency of cells.