Across
- 5. Acid a biological macromolecule storing genetic information, DNA or RNA
- 6. the smallest unit of an element that retains its properties
- 9. a substance that increases reaction rate without being consumed
- 11. the simplest form of sugar, such as glucose or fructose
- 13. a complex carbohydrate composed of many monosaccharide units
- 16. a substance formed when two or more elements are chemically bonded
- 18. the basic building blocks of nucleic acids, composed of a sugar, phosphate, and nitrogenous base
- 19. a protein that speeds up chemical reactions in biological systems
- 21. a fatty, oily, or waxy organic compound used for energy storage and structural components
- 22. Bond the chemical bond linking amino acids in a protein chain
- 23. a neutral subatomic particle in the nucleus of an atom
- 25. a substance that accepts hydrogen ions, pH greater than 7
- 26. a pure substance made of only one kind of atom
- 27. variants of an element with differing numbers of neutrons
- 28. a positively charged subatomic particle in the nucleus
- 30. tending to repel water; nonpolar molecules
- 32. an atom or molecule with a net electric charge due to loss or gain of electrons
- 33. a substance that releases hydrogen ions in solution, pH less than 7
- 34. Reaction process where substances are transformed into different substances
Down
- 1. large complex molecules such as proteins, nucleic acids, carbohydrates, and lipids
- 2. tending to mix with or be attracted to water; polar molecules
- 3. a group of atoms bonded together representing the smallest fundamental unit of a chemical compound
- 4. the substance upon which an enzyme acts during a chemical reaction
- 7. an organic compound consisting of carbon, hydrogen, and oxygen, providing energy
- 8. Bond a weak attraction between a hydrogen atom and an electronegative atom in another molecule
- 10. a negatively charged subatomic particle orbiting the nucleus
- 12. Bond a chemical bond where atoms share pairs of electrons
- 14. Bond a chemical bond formed through the electrostatic attraction between oppositely charged ions
- 15. Energy the minimum energy required to start a chemical reaction
- 17. Scale a scale measuring the acidity or alkalinity of a solution
- 20. Shell the region around an atom's nucleus where electrons are likely to be found
- 24. Acid the building blocks of proteins, containing an amino group and a carboxyl group
- 28. a molecule composed of amino acids that performs many functions within organisms
- 29. relating to compounds containing carbon, typically associated with living organisms
- 31. a type of lipid involved in cell membrane structure and precursor to hormones