1. 1. The smallest living unit is a _____. A. proton B. molecule C. cell D. tissue

2. 2. All cells come from preexisting cells. True False
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3. 3. All living organisms are multicellular. True False
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4. 4. A large cell has more surface area to volume than a small cell
4. A large cell has more surface area to volume than a small cell True False
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5. 5. The surface area of a cell _____. A
5. The surface area of a cell _____ A. must be large enough to allow adequate nutrients to enter B. may be increased by modifications of the plasma membrane C. must be of adequate size to allow for waste disposal D. all of the above
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6. 6. The smallest cells are _____. A. viruses B. bacterial C. animal D
6. The smallest cells are _____ A. viruses B. bacterial C. animal D. plant
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7. 7. The magnification capability of a transmission electron microscope is much greater than that of a light microscope True False
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8. 8. Bacterial cells are easily seen without a microscope. True False
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9. 9. Which of the following is NOT a feature of bacterial cells. A
9. Which of the following is NOT a feature of bacterial cells? A. cell wall B. plasma membrane C. nucleus D. ribosomes
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10. 10. Photosynthetic bacteria (cyanobacteria) contain ______. A
10. Photosynthetic bacteria (cyanobacteria) contain ______ A. chloroplasts B. thylakoids C. mitochondria D. centrioles
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11. 11. Bacteria are prokaryotic cells, which means that they lack a nucleus. True False
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12. 12. Bacterial cells do not contain DNA. True False
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13. 13. Protein synthesis in a bacterial cell is done by _____. A
13. Protein synthesis in a bacterial cell is done by _____ A. ribosomes B. centrioles C. flagella D. thylakoids
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14. 14. Motile bacteria move by means of ______. A. cilia B. plasmids C
14. Motile bacteria move by means of ______ A. cilia B. plasmids C. flagella D. pseudopods
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15. 15. The DNA of a bacteria is located in the _____. A. nucleoid B
15. The DNA of a bacteria is located in the _____ A. nucleoid B. mitochondria C. ribosomes D. nucleolus
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16. 16. Bacterial cells may have accessory rings of DNA called plasmids
16. Bacterial cells may have accessory rings of DNA called plasmids True False
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17. 17. The regulation of molecule movement in and out of the cell is done by the _____ A. capsule B. plasma membrane C. cell wall D. nucleoid
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18. 18. In photosynthetic bacteria (cyanobacteria) the light-sensitive pigments are found in chloroplasts True False
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19. 19. The outermost boundary of prokaryotic cells is their _____. A
19. The outermost boundary of prokaryotic cells is their _____ A. plasma membrane B. nuclear envelope C. cytoplasm D. cell wall
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20. 20. The simple structure of bacteria limits where they can live and what material they can use for energy True False
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21. 21. The DNA of eukaryotic cells is contained within a true nucleus
21. The DNA of eukaryotic cells is contained within a true nucleus True False
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22. 22. Smooth endoplasmic reticulum has attached ribosomes. True False
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23. 23. The organized lattice of protein filaments inside the eukaryotic cell is known as the _____ A. cytoskeleton B. cell wall C. RER D. Golgi apparatus
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24. 24. Which of the following is found only in plant cells? A. ribosomes B. mitochondria C. centrioles D. chloroplasts
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25. 25. The post office could be used as an analogy for the _____ because of its processing, packaging and distribution functions A. plasma membrane B. Golgi apparatus C. chloroplast D. nucleolus
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26. 26. Which of the following has a cell wall. A. plant cell B
26. Which of the following has a cell wall? A. plant cell B. bacterial cell C. animal cell D. both A and B
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27. 27. The contents of an animal cell are separated from its environment by the _____ A. plasma membrane B. cell wall C. nuclear envelope D. SER
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28. 28. The cell wall of a plant cell cannot be distinguished from the cell wall of a bacterial cell True False
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29. 29. The endosymbiotic hypothesis attempts to explain _____. A
29. The endosymbiotic hypothesis attempts to explain _____ A. the origin of chloroplasts and mitochondria B. how cells reproduce C. how photosynthesis occurs D. the differences between plant and animal cells
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30. 30. Which of the following supports the endosymbiotic hypothesis. A
30. Which of the following supports the endosymbiotic hypothesis? A. The shape and size of mitochondria and chloroplasts are similar to bacteria's B. Mitochondrial and chloroplast DNA is a circular loop like that of bacteria C. Mitochondrial and chloroplast ribosomes resemble those of bacteria D. all of the above
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31. 31. Some scientists believe mitochondria and chloroplasts may have been bacteria that were engulfed by a larger cell True False
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32. 32. Chromatin contains __________. A. DNA B. protein C. RNA D
32. Chromatin contains __________ A. DNA B. protein C. RNA D. all of the above
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33. 33. All types of _____ are produced in the nucleus. A. proteins B
33. All types of _____ are produced in the nucleus A. proteins B. carbohydrates C. RNA D. lipids
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34. 34. The _____ participates in ribosome synthesis and is found in the nucleus A. plasma membrane B. SER C. Golgi apparatus D. nucleolus
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35. 35. The nuclear envelope does not allow anything to enter or exit the nucleus. True False
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36. 36. Ribosomes are found in prokaryotic and eukaryotic cells. True False
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37. 37. Ribosomes are found _____. A. within the cytosol B
37. Ribosomes are found _____ A. within the cytosol B. attached to endoplasmic reticulum C. in the nucleus D. both A and B
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38. 38. Ribosomes _____. A. synthesize proteins B. contain the DNA C
38. Ribosomes _____ A. synthesize proteins B. contain the DNA C. synthesize lipids D. store hydrolytic enzymes
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39. 39. Which of the following is a function of the smooth endoplasmic reticulum? A. steroid synthesis B. solar energy absorption C. enzyme synthesis D. ATP synthesis
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40. 40. Proteins are modified, sorted and packaged by the _________. A
40. Proteins are modified, sorted and packaged by the _________ A. plasma membrane B. mitochondria C. Golgi apparatus D. SER
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41. 41. Plant cells are supported by their cell wall and a central vacuole
41. Plant cells are supported by their cell wall and a central vacuole True False
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42. 42. Bacteria that are engulfed by a white blood cell will be destroyed by hydrolytic enzymes inside ________________ A. ribosomes B. lysosomes C. chloroplasts D. centrioles
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43. 43. A plant's leaf cell can be distinguished from other cells by the large number of _____ it contains A. chloroplasts B. centrioles C. nuclei D. plasmids
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44. 44. Chloroplasts will be found in _____. A. plant cells B
44. Chloroplasts will be found in _____ A. plant cells B. algal cells C. animal cells D. both A and B
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45. 45. Solar energy is used to synthesize carbohydrates in the mitochondria. True False
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46. 46. Chlorophyll, the pigment that captures the sun's energy, is found in the _____ A. stroma B. thylakoids C. cristae D. matrix
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47. 47. The energy in carbohydrates is transformed into ATP in the _____ A. mitochondria B. nucleus C. Golgi apparatus D. chloroplasts
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48. 48. Skeletal muscle cells will have a large number of _____ due to their high demand for energy A. chloroplasts B. lysosomes C. flagella D. mitochondria
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49. 49. The large surface area needed for the participants in cellular respiration is provided by the _____ of the mitochondria A. stroma B. thylakoids C. cristae D. matrix
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50. 50. Plant and algal cells have chloroplasts and mitochondria
50. Plant and algal cells have chloroplasts and mitochondria True False
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51. 51. Our bones and muscles are comparable to a cell's _____. A
51. Our bones and muscles are comparable to a cell's _____ A. nucleus B. plasma membrane C. cytoskeleton D. lysosomes
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52. 52. Mitochondria are able to synthesize some of the proteins needed for cellular respiration with their own DNA and ribosomes True False
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53. 53. Sperm cells move by means of _______. A. flagella B. cilia C
53. Sperm cells move by means of _______ A. flagella B. cilia C. pseudopods D. actin filaments
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54. 54. Debris that is trapped in mucus is moved away from the lungs toward the throat by _____ A. flagella B. cilia C. pseudopods D. actin filaments
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55. 55. Plant and fungal cells contain centrioles. True False
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56. 56. The cytoskeleton of the cell functions to ________________. A
56. The cytoskeleton of the cell functions to ________________ A. maintain cell shape B. anchor organelles C. allow organelles to move D. all of the above
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57. 57. Actin filaments interact with motor molecules to create movement of the cell. True False
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58. 58. Which of the following will NOT be found in abundance in an insulin producing pancreas cell? A. RER B. Golgi apparatus C. chloroplasts D. ribosomes
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59. 59. Prokaryotes are the least adaptable and least successful forms of life on earth. True False
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60. 60. Prokaryotic cells are highly compartmentalized. True False
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