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

2. All cells come from preexisting cells. True False . ___. 3. All living organisms are multicellular. True False . ___. 4. A large cell has more surface area to volume than a small cell. True False . ___. 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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1. The smallest living unit is a _____. A. proton B. molecule C. cell D. tissue

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    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

    3. 3. All living organisms are multicellular. True False

    4. 4. A large cell has more surface area to volume than a small cell. True False

    5. 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

    6. 6. The smallest cells are _____. A. viruses B. bacterial C. animal D. plant

    7. 7. The magnification capability of a transmission electron microscope is much greater than that of a light microscope. True False

    8. 8. Bacterial cells are easily seen without a microscope. True False

    9. 9. Which of the following is NOT a feature of bacterial cells? A. cell wall B. plasma membrane C. nucleus D. ribosomes

    10. 10. Photosynthetic bacteria (cyanobacteria) contain ______. A. chloroplasts B. thylakoids C. mitochondria D. centrioles

    11. 11. Bacteria are prokaryotic cells, which means that they lack a nucleus. True False

    12. 12. Bacterial cells do not contain DNA. True False

    13. 13. Protein synthesis in a bacterial cell is done by _____. A. ribosomes B. centrioles C. flagella D. thylakoids

    14. 14. Motile bacteria move by means of ______. A. cilia B. plasmids C. flagella D. pseudopods

    15. 15. The DNA of a bacteria is located in the _____. A. nucleoid B. mitochondria C. ribosomes D. nucleolus

    16. 16. Bacterial cells may have accessory rings of DNA called plasmids. True False

    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

    18. 18. In photosynthetic bacteria (cyanobacteria) the light-sensitive pigments are found in chloroplasts. True False

    19. 19. The outermost boundary of prokaryotic cells is their _____. A. plasma membrane B. nuclear envelope C. cytoplasm D. cell wall

    20. 20. The simple structure of bacteria limits where they can live and what material they can use for energy. True False

    21. 21. The DNA of eukaryotic cells is contained within a true nucleus. True False

    22. 22. Smooth endoplasmic reticulum has attached ribosomes. True False

    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

    24. 24. Which of the following is found only in plant cells? A. ribosomes B. mitochondria C. centrioles D. chloroplasts

    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

    26. 26. Which of the following has a cell wall? A. plant cell B. bacterial cell C. animal cell D. both A and B

    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

    28. 28. The cell wall of a plant cell cannot be distinguished from the cell wall of a bacterial cell. True False

    29. 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

    30. 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

    31. 31. Some scientists believe mitochondria and chloroplasts may have been bacteria that were engulfed by a larger cell. True False

    32. 32. Chromatin contains __________. A. DNA B. protein C. RNA D. all of the above

    33. 33. All types of _____ are produced in the nucleus. A. proteins B. carbohydrates C. RNA D. lipids

    34. 34. The _____ participates in ribosome synthesis and is found in the nucleus A. plasma membrane B. SER C. Golgi apparatus D. nucleolus

    35. 35. The nuclear envelope does not allow anything to enter or exit the nucleus. True False

    36. 36. Ribosomes are found in prokaryotic and eukaryotic cells. True False

    37. 37. Ribosomes are found _____. A. within the cytosol B. attached to endoplasmic reticulum C. in the nucleus D. both A and B

    38. 38. Ribosomes _____. A. synthesize proteins B. contain the DNA C. synthesize lipids D. store hydrolytic enzymes

    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

    40. 40. Proteins are modified, sorted and packaged by the _________. A. plasma membrane B. mitochondria C. Golgi apparatus D. SER

    41. 41. Plant cells are supported by their cell wall and a central vacuole. True False

    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

    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

    44. 44. Chloroplasts will be found in _____. A. plant cells B. algal cells C. animal cells D. both A and B

    45. 45. Solar energy is used to synthesize carbohydrates in the mitochondria. True False

    46. 46. Chlorophyll, the pigment that captures the sun's energy, is found in the _____. A. stroma B. thylakoids C. cristae D. matrix

    47. 47. The energy in carbohydrates is transformed into ATP in the _____. A. mitochondria B. nucleus C. Golgi apparatus D. chloroplasts

    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

    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

    50. 50. Plant and algal cells have chloroplasts and mitochondria. True False

    51. 51. Our bones and muscles are comparable to a cell's _____. A. nucleus B. plasma membrane C. cytoskeleton D. lysosomes

    52. 52. Mitochondria are able to synthesize some of the proteins needed for cellular respiration with their own DNA and ribosomes. True False

    53. 53. Sperm cells move by means of _______. A. flagella B. cilia C. pseudopods D. actin filaments

    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

    55. 55. Plant and fungal cells contain centrioles. True False

    56. 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

    57. 57. Actin filaments interact with motor molecules to create movement of the cell. True False

    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

    59. 59. Prokaryotes are the least adaptable and least successful forms of life on earth. True False

    60. 60. Prokaryotic cells are highly compartmentalized. True False

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