Across
- 2. The simplest type of carbohydrate, consisting of a single sugar molecule that cannot be broken down into smaller sugars.
- 8. Substance that speeds up the rate of a chemical reaction.
- 10. Protein catalysts that speeds up the rate of specific biological reactions.
- 11. Regions surrounding the atomic nucleus containing a specific number of electrons.
- 12. Atom that has a positive or negative charge.
- 13. Negatively charged particle; located in the space surrounding the nucleus.
- 15. Compound that produces hydroxide ions (OH–) in solution; with a pH of more than 7.
- 19. A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- 21. Type of bond between atoms in which the electrons are shared.
- 22. A carbohydrate formed by long chains of repeating units linked together by glycosidic bonds.
- 25. One of several forms of a single element, which contains the same number of protons but a different number of neutrons.
- 26. Substance formed by the chemical combination of two or more elements in definite proportions.
- 30. Energy input that is needed for a reaction to begin.
- 32. A molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.
- 33. Covalent bond forms between the carbon atom of the carboxyl group of one amino acid and the nitrogen atom of the amino group of another.
- 34. A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.
- 35. Reactant of an enzyme-catalyzed reaction.
Down
- 1. A waxy substance found in the blood.
- 3. Weak attraction between a hydrogen atom and another atom.
- 4. Macromolecules that contain carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair.
- 5. A scale used to measure the acidity or basicity of a solution.
- 6. Smallest unit of most compounds that displays all the properties of that compound.
- 7. Process that changes, or transforms, one set of chemicals into another set of chemicals.
- 9. A compound consisting of a nucleoside linked to a phosphate group. Forms the basic structural unit of nucleic acids such as DNA.
- 14. Macromolecule containing hydrogen, oxygen. Nitrogen, carbon, and phosphorus.
- 16. Chemical bond formed when one of more electrons are transferred form one atom to another.
- 17. Macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waves.
- 18. A strong affinity for water.
- 20. The property of a substance that repels water or does not mix with it.
- 23. Compound with an amino group on one end and a carboxyl group on the other end.
- 24. Compound that forms hydrogen ions (H+) in solution; a solution with a pH of less than 7.
- 27. The base unit of matter.
- 28. Compound made of carbon, hydrogen, and oxygen atoms; types of nutrients that are the major source of energy in the body.
- 29. Relating to or derived from living matter.
- 31. Pure substance that consists entirely of one type of atom.