2. Chapter 2 It’s Alive or Is It?

3. A membrane-covered structure that contains all of the materials necessary for life Click for Term

4. Cell A membrane-covered structure that contains all of the materials necessary for life Click for Term

5. Anything that affects the activity of an organism, organ or tissue Click for Term

6. Stimulus Anything that affects the activity of an organism, organ or tissue Click for Term

7. The maintenance of a stable internal environment Click for Term

8. Homeostasis The maintenance of a stable internal environment Click for Term

9. Reproduction in which a single parent produces offspring that are genetically identical to the parent Click for Term

10. Asexual reproduction Reproduction in which a single parent produces offspring that are genetically identical to the parent Click for Term

11. Reproduction in which two parents are required to produce offspring that will share characteristics of both parents Click for Term

12. Sexual reproduction Reproduction in which two parents are required to produce offspring that will share characteristics of both parents Click for Term

13. Hereditary material that controls all of the activities of a cell, contains the information to make new cells, and provides instructions for making proteins Click for Term

14. DNA (deoxyribonucleic acid) Hereditary material that controls all of the activities of a cell, contains the information to make new cells, and provides instructions for making proteins Click for Term

15. The passing of traits from parent to offspring Click for Term

16. Heredity The passing of traits from parent to offspring Click for Term

17. The combined chemical processes that occur in a cell or living organism Click for Term

18. Metabolism The combined chemical processes that occur in a cell or living organism Click for Term

19. An organism that uses sunlight directly to make sugar Click for Term

20. Producer An organism that uses sunlight directly to make sugar Click for Term

21. An organism that eats producers or other organisms for energy Click for Term

22. Consumer An organism that eats producers or other organisms for energy Click for Term

23. An organism that gets energy by breaking down the remains of dead organisms and consuming or absorbing the nutrients Click for Term

24. Decomposer An organism that gets energy by breaking down the remains of dead organisms and consuming or absorbing the nutrients Click for Term

25. An organism that gets energy by eating dead things, like a vulture Click for Term

26. Scavenger An organism that gets energy by eating dead things, like a vulture Click for Term

27. An organism that feeds on another living creature, usually without killing it Click for Term

28. Parasite An organism that feeds on another living creature, usually without killing it Click for Term

29. A biochemical that is composed of amino acids; its functions include regulating chemical reactions, transporting and storing materials, and providing support Click for Term

30. Protein A biochemical that is composed of amino acids; its functions include regulating chemical reactions, transporting and storing materials, and providing support Click for Term

31. A biochemical composed of one or more simple sugars bonded together that is used as a source of energy and to store energy Click for Term

32. Carbohydrate A biochemical composed of one or more simple sugars bonded together that is used as a source of energy and to store energy Click for Term

33. A type of biochemical that does not dissolve in water; including fats and oils, they store energy and make up cell membranes Click for Term

34. Lipid A type of biochemical that does not dissolve in water; including fats and oils, they store energy and make up cell membranes Click for Term

35. A molecule that forms much of the cell membrane Click for Term

36. Phospholipid A molecule that forms much of the cell membrane Click for Term

37. A biochemical that stores information needed to build proteins and other nucleic acids; made up of subunits called nucleotides Click for Term

38. Nucleic acid A biochemical that stores information needed to build proteins and other nucleic acids; made up of subunits called nucleotides Click for Term

39. The molecule that provides energy for a cell’s activities Click for Term

40. ATP (adenosine triphosphate) The molecule that provides energy for a cell’s activities Click for Term