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Keen & Sinha S11 -1- BIS 2C Study Questions 2 Microbial Eukaryotes 1. (a) What are the three locomotory mechanisms used by microbial eukaryotes? cilia, flagella, and amoeboid motion with pseudopodia (b) Which means of locomotion characterizes a clade of microbial eukaryotes? Cilia (c) Which of the following organisms belong to this clade? trypanosomes Paramecium shelled amoebae Stentor Plasmodium 2. Sleeping sickness is caused by what type of organism? a) bacteria b) dinoflagellates c) trypanosomes d) suctorian ciliates e) apicomplexans 3 . The life cycle of the malarial parasite is fairly complex. In which host does sexual reproduction of the parasite occur? in the mosquito Which of the following parts of the human host are affected by the parasite? red blood cells, hemoglobin, liver cells , brain tissue, skin cells, lung cells 4. What is the function of the apical complex in the parasite? a) to burrow into cells b) to digest hemoglobin c) to destroy nerve cells d) to penetrate the skin of the mosquito e) to penetrate the gut of the mosquito 5 . Kelp (brown algae) and diatoms are: a) members of the clade containing green plants b) members of clade Alveolata c) photosynthetic organisms outside the green plant clade d) multicellular members of the same clade as slime molds e) members of clade Opisthokonta
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Keen & Sinha S11 -2- 6 . Which of the following are possible life styles for ameobae? a) living at the bottom of ponds b) floating at the ocean’s surface in a tiny glass shell c) floating at the ocean’s surface in a tiny calcareous shell d) feeding on cornea tissue in the human eye e) all of the above 7 . Define each of the following statements as true or false: All photosynthetic bacteria form a clade. False All photosynthetic eukaryotes form a clade. False The red algae belong to clade Plantae. True The chloroplast is a homologous feature for Clade Plantae. True, they all obtained the chloroplast from a single common ancestor. The chloroplast is a synapomorphy for Clade Plantae. False—there are other taxa with chloroplasts outside of Plantae—if you say True, you would have to be sure there were details of the chloroplast for this group that would allow you to distinguish this chloroplasts from those chloroplasts in other clades. 8
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This note was uploaded on 10/23/2011 for the course BIS 101 taught by Professor Simonchan during the Spring '08 term at UC Davis.

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