biology unit 2 vocab

4. molecules composed of many monomers; makes up macromolecules
6. elements or compounds that enter into a chemical reaction
8. reaction in living organisms that builds molecules (requires energy)
9. reaction in living organisms that breaks down complex molecules (releases energy)
10. biological catalysts
12. macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
14. simple sugar molecule
16. energy- energy that is needed to get a reaction started
17. subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
18. reactant of an enzyme-catalyzed reaction
19. reaction- a reaction that releases energy (gives off heat)
20. small chemical unit that makes up a polymer
21. acid- compound with an amino group on one end and a carboxyl group on the other end
22. acid- macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus

1. compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
2. a complex carbohydrate made up of many monosaccharides
3. made up of amino acids
5. substance that speeds up the rate of a chemical reaction
7. reaction- process that changes, or transforms, one set of chemicals into another set of chemicals
11. large organic molecule made up of many atoms (like proteins)
13. formed as a result of a chemical reaction
15. reaction- a reaction that absorbs energy (absorbs heat)