53 the organism that caused the irish potato famine

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53. The organism that caused the Irish potato famine was a fungus called Phytophthora infestans . True or False? 54. Phytophthora infestans was reclassified from fungus to protista because it does not have chitin in its cell walls. True!!!! What other common organisms have chitin as a major component of their structure? 55. One can obtain balanced nutrition by eating only potatoes and milk. True or False? 56. Anatomically speaking, what is a mushroom? 57. What was probably the most effective means used by the British in trying to keep the Irish submissive? 58. What is the name of the reproductive particles of fungi that are spread around by wind? 59. What is the name of the small, tube-like threads of a fungus? 60. What is a mycelium? 61. When two compatible fungal hyphae link, they become “dikaryotic.” What does that mean? 62. A lichen is made up of a fungus and what else? 63. Why are lichens good indicators of air quality near industrial sites? 64. Yeast is a multi-celled protistan. True or False? 65. The fungus/root association called a mycorrhiza is detrimental to most plants. True or False? 66. A mushroom with a dome-shaped top and a flat underside is very safe to eat. FALSE!! 67. Is Agaricus brunnescens safe to eat? 68. Scab of apples and scab of wheat are caused by the same fungal organism. True or False? 69. “Rust” disease in wheat was first noticed by grow ers in the early 1900s. True or False? 70. Why will the rust and other diseases assure plant breeders of life-long job security? 71. Fungicides are used to treat crop seeds before they are planted and are safe for human consumption. True or False? 72. Ma ny diseases, such as wheat “scab,” also infect other crops, e.g., maize. True or False? 73. Fungus diseases affect plants by “clogging” their xylem and phloem. True or False? 74. Which group of pathogens causes more crop diseases? viruses, bacteria, or fungi? 75. New mycelia grow after _______ germinate. 76. Parasitic fungi obtain nutrients from (living or dead) hosts. 77. Saprophytic fungi obtain nutrients from (living or dead) hosts. 78. Plankton is the word used for a combination of phytoplankton and zooplankton. True or False?
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