OCB1010 study questions CH 5-9

OCB1010 study questions CH 5-9 - Test #2 - Chapters 5...

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Test #2 - Chapters 5 through 9 Chapter 5 1. What are the characteristics of prokaryotes, bacteria, and archaea? Prokaryotes- Organisms with cells that do not have a nucleus or most other organelles Bacteria- Prokaryotic unicellular microorganisms in the domain Bacteria. Archaea- prokaryotic unicellular microorganisms in the domain archaea. 2. What is detritus? What is the function of decay bacteria? Detrius- Favorable environments for the growth of bacteria. Decay bacteria break down waste products and dead organic matter and release nutrients into the environment. 3. What are the characteristics of cyanobacteria? What are stromatolites? Cyanobacteria- Blue-green algae, photosynthetic bacteria. Which contain chlorophyll a and a blue pigment. Stromatolites- Massive calcareous mounds formed by cyanobacteria in tropical seas. 4. What causes red tides? Planktonic species of cyanobacteria that reproduce quickly and contain a red pigment. 5. What is the difference between autotrophs and heterotrophs? Autotrophs make their own organic compounds and therefore are primary producers. Heterotrophs however obtain organic matter by respiration. 6. What are the structures, functions, habitat and reproductive methods of diatoms? Diatoms are unicellular enclosed by cell walls made of silica. 7. What are the structures, functions, habitat and reproductive methods of dinoflagellates? Dinoflagellates are planktonic unicellular organisms who posses two flagellas to direct movement. 8. What are protozoans, foraminiferans, radiolarians, and ciliates? Protozoans- Structurally simple and very diverse organisms that are considered animal like. Foraminiferans- marine protozoans with a shell, or test made of calcium carbonate. Radiolarians- planktonic marine protozoans that secrete elaborate and delicate shells made of glass and other materials Ciliates- protozoans that have many hair like cilia that are used for locomotion and feeding.
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Chapter 6 1. What is the difference between seaweeds and true algaes? Seaweed is a multicellular organism while true red and green alga is unicellular. 2.
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OCB1010 study questions CH 5-9 - Test #2 - Chapters 5...

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