payment page
-
Aerobes
Organisms that require oxygen to carry out respiration, as opposed to anaerobes.
-
Anaerobes
Organisms that do not require oxygen to carry out respiration, as opposed to aerobes. Anaerobes may be facultative anaerobes or obligate anaerobes.
-
Autotrophs
Organisms thatdo not require a specified exogenous factor for normal metabolism
-
Binary fission
Asexual reproduction found in prokaryotes in which a cell divides into two equal daughter cells by a non-mitotic process.
-
Chemoautotrophs
Organisms who derive their energy through the synthesis of organic materials from inorganic molecules.
-
Eukaryotes
Organisms whose cell interiors are characterized by separation into organelles and whose genetic material is enclosed by a nuclear membrane. Compare with prokaryotes.
-
Eukaryote flagella
The type of flagellum found in prokaryotes. These flagella are covered by the cell membrane and move in a back and forth motion.
-
Facultative anaerobes
Organisms that do not require oxygen to carry out respiration, but are not harmed by the presence of oxygen and may have the ability to respire aerobically in its presence. Compare with obligate anaerobes.
-
Flagella
A term used to refer to two different structures in prokaryotes and eukaryotes, both used in cell movement. Flagella in both groups are long, hair-like structures, but their internal structure and evolutionary history are completely different.
-
Flagellin
Protein subunits that make up prokaryotic flagella.
-
Gram Staining
A process by which components of bacterial cell walls are bound to Gram's stain. Some bacteria lack the cell wall component that will bind Gram's stain and are classified as Gram-negative.
-
Heterotrophic
Requiring organic materials from the environment due to an inability to produce them internally. As opposed to autotrophic.
-
Nucleoids
The clear regions in which the genetic material of prokaryotes is located. Nucleoids are not membrane bound.
-
Obligate anaerobes
Organisms that do not require oxygen for respiration and are poisoned in the presence of oxygen. Compare with facultative anaerobes.
-
Parasites
A party in symbiosis that benefits at the expense of the other party.
-
Peptidoglycan
The component of cell walls bound by gram's stain.
-
Photoautotroph
An organism that gains energy by synthesizing organic compound using light energy.
-
Plasmids
Circular DNA molecules found in prokaryotes.
-
Prokaryotes
Organisms whose cells lack internal organization into organelles and whose genetic material is not contained within a membrane-bound nucleus.
-
Prokaryote flagella
The type of flagellum found in prokaryotes. These flagella are not covered by the cell membrane and move in a spiral motion.
-
Pseudopeptidoglycan
A substance found in the cell walls of some archaebacteria that is similar to peptidoglycan.
-
Ribosomes
Cellular machinery for protein synthesis.
-
Tubulin
Protein that makes up the microtubules of eukaryotic flagella.
-
Saprophytes
Heterotrophic organisms that live on dead organic material.
