Biology Chapter 19 Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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prokaryotes | unicellular organisms that lack a nucleus
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bacilli | rod-shaped prokaryotes
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cocci | spherical prokaryotes
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spirilla | spiral and corkscrew-shaped prokaryotes
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chemoheterotrophs | heterotrophic prokaryotes that take in organic molecules for energy and a supply of carbon
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photoheterotrophs | These organisms use sunlight for energy, and take in organic compounds as a carbon source.
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photoautotrophs | use light energy to convert carbon dioxide and water to carbon compounds and oxygen in a process similar to that used by plants
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chemoautotrophs | make organic carbon molecules from carbon dioxide
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obligate aerobes | organisms that require a constant supply of oxygen in order to live
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obligate anaerobes | only live in the absence of oxygen
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facultative anaerobes | survive with or without oxygen
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binary fission | an asexual form of reproduction
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conjugation | a process by which bacteria exchange genetic information
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endospore | a type of spore
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nitrogen fixation | the process of converting nitrogen gas into a form plants can use
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viruses | particles of nucleic acid, protein, and in some cases, lipids
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capsid | a virus's protein coat
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bacteriophages | viruses that infect bacteria
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lytic infection | the process of a host cell being lysed and destroyed
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lysogenic infections | when a host cell makes copies of the virus indefinitely
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prophage | viral DNA that is embedded in the host's DNA
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retroviruses | viruses that contain RNA as their genetic information
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pathogens | disease-causing agents
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vaccine | a preparation of weakened or killed pathogens
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antibiotics | compounds that block the growth and reproduction of bacteria
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viroids | single-stranded RNA molecules that have no surrounding capsids.
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prions | protein infectious particles
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nitrogen fixation | process of converting nitrogen gas into a form plants can use
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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