Chapter 20- Mader Biology (Questions & Answers) Rated 100%

cyanobacteria - gram-negative bacteria with a number of unusual traits that photosynthesize in the same manner as plants chemoheterotrophs - An organism that must consume organic molecules for both energy and carbon. AIDS - acquired immune deficiency syndrome antibiotics - Drugs that block the growth and reproduction of bacteria archaea - prokaryotes whose cell walls do not contain peptidoglycan Bacteria - Domain of unicellular prokaryotes that have cell walls containing peptidoglycan bacteriophages - viruses that infect bacteria Binary fission - A form of asexual reproduction in which one cell divides to form two identical cells. Biosynthesis - The process by which living organisms produce larger molecules from smaller ones capsid - Outer protein coat of a virus chemoautotrophs - Organisms that use hydrogen sulfide or other chemicals as energy source instead of nsalism - one member of the association benefits and the other is neither helped nor harmed conjugation - A temporary union of two organisms for the purpose of DNA transfer. conjugation pilus - In a bacterium, elongated, hollow appendage used to transfer DNA to other cells DNA - A complex molecule containing the genetic information that makes up the chromosomes. emerging viruses - Viruses that appear suddenly or are new to medical scientists endospores - bacterial spore that can survive harsh conditions facultative anaerobes - Can make enough ATP to survive using using fermentation or respiration.