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Chapter 18 Name Date Class 9 Streptococcus pyogenes is the bacterium that causes strep throat. Based on its name, what is the shape of the individual bacterial cells A round B rod C spiral D polyhedral bk Retroviruses, such as HIV, use an enzyme to convert their RNA into double-stranded DNA. What is this enzyme A reverse polymerase B DNA polymerase C reverse transcriptase D RNA synthetase bl What is true about prions A They can be contracted much like a virus. B They cause the brain to solidify. C They are protein particles normally found in cells. D They are virus particles. bn Which event might induce a virus to enter a lytic cycle after being dormant for several years A gaining weight B taking vitamin supplements C emotional stress D regular sleep habits bo What viral disease was eliminated by a worldwide vaccination program A smallpox B polio C influenza D genital herpes bp Why are methanogens obligate anaerobes A They live in salty environments. B They die in the presence of oxygen. C They give off carbon dioxide as a waste product. D They carry out photosynthesis using chlorophyll. bm Which role do bacteria play in the illustration shown below The Nitrogen Cycle A cause disease B recycle nutrients C produce medicines D produce foods Bacteria Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. 36 CHAPTER 18 STANDARDIZED TEST PRACTICE
Chapter 19 Name Date Class 1 Which of the following are all photosynthetic protists A algae B protozoa C funguslike protists D unicellular protists 2 Amoebas extend their plasma membranes to feed and move. What are these extensions called A flagella B pseudopods C webs D vacuoles Use the following illustration of a paramecium to answer questions 3 and 4. 5 What is a mass of cytoplasm with many diploid nuclei but no cell walls or membranes called A thallus B plasmodium C pseudopodia D algae colony 6 Why are green algae similar to green plants A They can have more than one nucleus in each cell. B They have chloroplasts and store food as carbohydrates. C The reproduce by spores. D They both have peptiglycan in their cell walls. 7 What microscopic protozoans live in the guts of termites and digest the cellulose in the wood A microsporidia B plasmodia C sporozoites D merozoites Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. 3 What are the structures labeled A on the paramecium A contractile vacuoles B oral grooves C food vacuoles D cilia 4 What is the function of structure B in the paramecium A expels water to maintain homeostasis B discharges a pinelike structure C digests food D contains the cell’s genome 8 You have just returned from a subtropical region. You have chills and fever, and suspect that you might have contracted malaria. How would you have gotten malaria A bite of a male Anopheles mosquito B drinking contaminated water C bite of a female reduviid bug D bite of a female Anopheles mosquito STANDARDIZED TEST PRACTICE CHAPTER 19 37
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Page 81: glencoe.com ISBN: 978-0-07-879935-8

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