Chapter 20- Mader Biology
Terms in this set (43)
The smallest living organisms on earth
A complex molecule containing the genetic information that makes up the chromosomes.
single-stranded nucleic acid that contains the sugar ribose
Outer protein coat of a virus
viruses that infect bacteria
phage causes lysis and death of host cell
replicates the phage genome without destroying the host
Viruses hide out in cell for months or years
Ex cold sores /warts
viruses that contain RNA instead of DNA
Viruses that appear suddenly or are new to medical scientists
an enzyme that catalyzes the formation of DNA from an RNA template
acquired immune deficiency syndrome
The process by which living organisms produce larger molecules from smaller ones
the internally programmed growth of a child
are naked (lacking a protein shell) pieces of RNA.
those that destroy nerve tissue in the brain
Cells that do not contain nuclei
A form of asexual reproduction in which one cell divides to form two identical cells.
A temporary union of two organisms for the purpose of DNA transfer.
In a bacterium, elongated, hollow appendage used to transfer DNA to other cells
A change in genotype and phenotype due to the assimilation of external DNA by a cell.
The binding of the signal molecule changes the receptor protein in some way.
Domain of unicellular prokaryotes that have cell walls containing peptidoglycan
Polysaccharide that contains short chains of amino acids; found in bacterial cell walls.
Can make enough ATP to survive using using fermentation or respiration.
carry out fermentation or anaerobic respiration and cannot survive in the presence of O2
Organisms that use light as a source of energy to synthesize organic substances.
Organisms that use hydrogen sulfide or other chemicals as energy source instead of light.
An organism that must consume organic molecules for both energy and carbon.
(heterotroph) feeds on decaying organic material
Relationships between two or more different species.
A relationship between two species in which both species benefit
one member of the association benefits and the other is neither helped nor harmed
A relationship in which one organism lives on or inside of another organism and harms it.
Microorganisms that cause disease
bacterial spore that can survive harsh conditions
Drugs that block the growth and reproduction of bacteria
gram-negative bacteria with a number of unusual traits that photosynthesize in the same manner as plants
prokaryotes whose cell walls do not contain peptidoglycan
obligate anaerobes found in environments such as swamps, marshes, and the intestinal tracts of animals.
prefer high concentrations of salt
Live in extremely acidic and high temperature environments
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