unicellular organisms that lack a nucleus
rod shaped prokaryote
spiral and corkscrew-shaped prokaryotes
An organism that must consume organic molecules for both energy and carbon.
organism that is photosynthetic but needs organic compounds as a carbon source
organism that uses energy from sunlight to convert carbon dioxide and water to carbon compounds
organism that makes organic carbon molecules from carbon dioxide using energy from chemical reactions
prokaryotes that need oxygen to live
organisms that cannot live where molecular oxygen is present
can live with or without oxygen
a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size
the direct transfer of DNA between two cells that are temporarily joined
type of spore formed when a bacterium produces a thick internal wall that encloses its DNA and a portion of its cytoplasm
the process of changing free nitrogen gas into a usable form for plants
particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells
protein coat of a virus
virus that infects bacteria
process in which a virus enters a cell, makes a copy of itself, and causes the cell to burst
process by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA
the viral DNA that is embedded in the host cell's DNA
virus that contains RNA as its genetic information
a preparation of weakened or killed pathogens
compound that blocks the growth and reproduction of bacteria
single-stranded RNA molecule that has no surrounding capsids
infectious particles composed of protein with no nucleic acid (no DNA or RNA)
bacteria that contain chlorophyll a belong to this group
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