Chapter 2 Bio vocab

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Across
  1. 3. - the breaking down in living organisms of more complex substances into simpler ones, with the release of energy
  2. 7. reproduction - type of reproduction in which cells from two parents unite to form the first cell of a new organism
  3. 9. - relatively constant internal physical and chemical conditions that organisms maintain
  4. 12. - signal to which an organism responds
  5. 15. - group or level of organization into which organisms are classified
  6. 16. - hydrocarbons that contain only single bonds
  7. 17. - protein catalyst that speeds up the rate of specific biological reactions
  8. 19. - hydrocarbons that contain double or triple carbon-carbon bonds
  9. 22. - macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair
  10. 23. - groups of closely related species; the first part of the scientific name in binomial nomenclature
  11. 29. - the synthesis in living organisms of more complex substances from simpler ones
  12. 30. - compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  13. 32. - a carbohydrate whose molecules consist of a number of sugar molecules bonded together
  14. 34. - a compound that contains hydrocarbons, often associated with living things
  15. 35. - system of naming and classifying organisms based on shared characteristics and universal rules
  16. 37. - macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  17. 39. acid - macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  18. 40. - in classification, a group of similar genera
  19. 41. - largest and most inclusive group in Linnaean classification
  20. 43. - scientific study of life
  21. 44. reaction - process that changes, or transforms, one set of chemicals into another set of chemicals
Down
  1. 1. - (deoxyribonucleic acid) genetic material that organisms inherit from their parents
  2. 2. - any substance that is composed of two molecules of simple sugars linked to each other
  3. 4. - in classification, a group of closely related families
  4. 5. - in classification, a group of closely related orders
  5. 6. - elements or compounds produced by a chemical reaction
  6. 8. - the combination of chemical reactions through which an organism builds up or breaks down materials
  7. 10. - reactant of an enzyme-catalyzed reaction
  8. 11. - change over time
  9. 13. - larger, more inclusive taxonomic category than a kingdom
  10. 14. bond - covalent bond formed between two amino acids
  11. 18. - subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
  12. 20. reproduction - process of reproduction involving a single parent that results in offspring that are genetically identical to the parent
  13. 21. - molecules composed of many monomers; makes up macromolecules
  14. 24. - study of the diversity of life and the evolutionary relationships between organisms
  15. 25. - elements or compounds that enter into a chemical reaction
  16. 26. nomenclature - classification system in which each species is assigned a two-part scientific name
  17. 27. - the combination of many small molecules to form large molecules
  18. 28. - in classification, a group of closely related classes
  19. 31. acid - compound with an amino group on one end and a carboxyl group on the other end
  20. 33. - substance that speeds up the rate of a chemical reaction
  21. 36. -small chemical unit that makes up a polymer
  22. 38. energy - energy that is needed to get a reaction started
  23. 42. - simple sugar molecule