Chapter 15 - 1 LECTURE HANDOUT 17 PROTIST DIVERSITY...

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Chapter 15: Protista: Algae and Heterotrophic Protists Multiple-Choice Questions 1. Introduction; p. 296; moderate; ans: d Grypania is evolutionarily significant because it may be the earliest known: a. photosynthetic prokaryote. b. heterotrophic prokaryote. c. acritarch d. eukaryote. e. plant. 2. Introduction; p. 296–299; easy; ans: b Which of the following statements about protists is FALSE? a. Some of the oldest fossil eukaryotes resembled protists. b. They live mainly on land. c. They include autotrophic, heterotrophic, and mixotrophic algae. d. They include the cellular and plasmodial slime molds. e. Fungi, plants, and animals are derived from ancient protists. 3. Ecology of the Algae; p. 301; moderate; ans: d Which of the following statements about algal blooms is FALSE? a. They are associated with water disturbed by humans. b. They occur when algal growth is unchecked. c. Some are known as brown tides. d. The frequency of marine algal blooms has decreased globally. e. They are often correlated with the release of toxic compounds. 4. Ecology of the Algae; p. 301; moderate; ans: c Some phytoplankton reduce atmospheric levels of carbon dioxide by favoring formation of ______ during photosynthetic carbon fixation. a. carbohydrate b. protein c. calcium carbonate d. calcium nitrate e. sulfur-containing compounds 5. Dinoflagellates: Phylum Dinophyta; p. 303; moderate; ans: a Which of the following statements about dinoflagellates is FALSE? a. They have three or more flagella in grooves. b. They have permanently condensed chromosomes. c. Many have stiff cellulosic plates. d. They are unicellular. e. About half are photosynthetic.
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2 Chapter 15 Protista: Algae and Heterotrophic Protists 6. Dinoflagellates: Phylum Dinophyta; p. 303; easy; ans: e A theca is found in members of the phylum: a. Euglenophyta. b. Rhodophyta. c. Haptophyta. d. Cryptophyta. e. Dinophyta. 7. Dinoflagellates: Phylum Dinophyta; p. 303; moderate; ans: e Which of the following statements about dinoflagellate nutrition is FALSE? a. Some are photosynthetic and also ingest solid food particles. b. Some are nonphotosynthetic and instead ingest solid food particles. d. Some are photosynthetic and also absorb dissolved organic compounds. c. Some are nonphotosynthetic and instead absorb dissolved organic compounds. e. Some are photosynthetic and use a peduncle to facilitate light absorption. 8. Dinoflagellates: Phylum Dinophyta; pp. 303–304; easy; ans: b The presence of ______ in dinoflagellates supports the hypothesis that their chloroplasts were derived from ingested chrysophytes. a. zooxanthellae b. peridinin c. floridean starch d. carrageenan e. paramylon 9. Dinoflagellates: Phylum Dinophyta; p. 304; difficult; ans: b In a coral reef, zooxanthellae: a. form a nonsymbiotic association with the coral polyps. b. produce glycerol instead of starch. c. grow only at ocean depths greater than 60 meters.
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  • Fall '12
  • Fertuck
  • Evolution, green algae, heterotrophic protists

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