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Bio Chapter 29
Terms in this set (53)
Microscopic organisms AKA bacteria and archaea
Study of microbes
Bacteria and archaea that live in extreme habitats
Bacteria that cause disease mostly by affecting tissues at the body's entry points and come from lineages. Periodontitis
This confirmed that a there was a causative link between a specific infectious disease and a specific microbe.
Acellular particles that parasitize cells connected to the germ theory of disease
The ability to cause disease, is heritable and varies among populations
Molecules that kill bacteria or stop them from growing
Formed when bacteria grow in dense colonies
Use of bacteria and archaea to clean up sites that have been polluted with organic solvents.
Adding specific species of bacteria or archaea to contaminated sites
Helps distinguish the type of cell wall that exists within the bacteria/archaea
These gram stains are purple under the microscope
These gram stains are pink under the microscope
These have a cell wall that contains a large amount of peptidoglycan carbohydrates.
These have a cell wall with 2 components; a thin layer containing peptidoglycan and an out phospholipid bilayer.
lineage of photosynthetic bacteria
Bacteria and archaea are the only organisms capable of converting molecular N into Ammonia through a process called...
Occurs when bacterial and archaea species reduce nitrate (NO3) into molecular nitrogen N2
Controlled by bacteria and archaea and drive the movement of nitrogen atoms though ecosystems around the globe.
Both Gram positive
Firmicutes and Actinobacteria
What bacteria has the capability of causing disease such as Anthrax, Tetanus, and strep throat
Bacteria that produce toxins used in insecticides and are used to ferment milk to produce yogurt/cheese
"Blue algae" that perform oxygenic photosynthesis and were the source of oxygen in our atmosphere
Bacteria that can fix nitrogen, associate with other organisms by providing nutritional benefits, and release toxin molecules called microcystins
Soil-dwelling species that are found as chains of cells that form extensive branding filaments called mycelia
This bacteria can cause tuberculosis and leprosy
This bacteria helps produce antibiotics, it is a vital decomposer, they associate with plant roots, fix nitrogen, and can break down toxins
This bacteria is very small and distinguished by its corkscrew shape and flagella. They can produce ATP and are common in aquatic habitats
This bacteria can live in termites and can fix nitrogen
This bacteria can cause syphilis and lyme disease
This bacteria are considered to be endosymbionts meaning they can live in parasites in animals and get most of their nutrition from their hosts.
This bacteria can cause blindness, urogenital tract infections, epidemics; a disease in birds
This bacteria form 5 major subgroups and are very diverse in morphology
-can from rods, spheres, or spirals
-some form stalks and others are mobile
-some can form colonies that then produce a structure called a fruiting body
This bacteria is metabolically diverse yet none perform photosynthesis
Ex; E-coli This bacteria can cause cholera, dysentery, and plague
This bacteria is used to produce vinegar, it lives in plant roots, they fix nitrogen, and they are considered to be predators.
This archaea is often found in ocean, estuaries, and terrestrial soils, they grow in moderate temperatures.
This archaea are ammonia oxidizers meaning they use ammonia as a source of electrons, they generate nitrite as a by-product, and they fix CO2 using energy form ammonia oxidation
This archaea is metabolically diverse
Some of this archaea can make ATP through fermentation
This archaea live in extreme environments
-Acidic 1-5 PH
This archaea live in every possible habitat
This archaea can live in piles of waste rock, they produce acids that pollute nearby streams, are said to be methanogens meaning they contribute approximately 2 billion tons of methane to the atmosphere every year causing global warming
Bacteria and Archaea
Prokaryotes are classified as belonging to 2 different domains. What are the domains?
Isolate bacterium from and infected sick animal and demonstrate that it is the same bacterium as the one used for infection.
To establish a link between a specific bacterium and a skin disease, researchers have shown that bacterium was present in sick people but not in healthy ones. They isolated the bacterium in a pure culture and demonstrated that experimental healthy animals injected with the culture became sick. What other experiment do researchers need to perform to be absolutely sure that the bacterium is responsible for this disease?
Oil spills are being cleaned up by adding non indigenous microbial hydrocarbon degraders to the spill in hopes that this bacteria will help clean up the spill is an example of...
Contaminated sites to encourage the growth of existing bacteria and archaea that degrades toxic compounds
Genetic characteristics such as rRNA sequences
Carl Woese and collaborators identified 2 major branches or prokaryotic evolution. What was the basis for dividing prokaryotes into 2 domains?
What was considered to be the 1st electron acceptor?
Molecules with low potential energy
What kind of molecules serve as electron acceptors in cellular respiration?
Syphilis is caused by a member of what phylum of bacteria?
Oxygenic photosynthesis by cyanobacteria significantly increased the amount of oxygen in the atmosphere
Multicellularity and large body size of eukaryotic organisms requires high metabolic rates and efficient ATP production by aerobic respiration. How did bacteria change Earth's atmosphere to enable aerobic respiration?
This set is often in folders with...
Chapter 33: An Introduction to Animals
Biology 1200 Ch.30
How humans alter cycles
Bio Final 3/4
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