System Glossary
 Glossary Search for Kingdom Prokaryotae (formerly Monera) (Search Options)

Definition of Term

Kingdom Prokaryotae (formerly Monera)
(english) Microscopic, prokaryotic cells. Comprise the bacteria, including blue-green bacteria (once considered to be algae). They are characterized by: a lack of membrane-bound organelles such as nuclei, mitochondria, or chloroplasts; the presence of small, distinctive ribosomes; and a single chromosome consisting only of nucleic acid. All major types of metabolism (heterotrophic, autotrophic, etc.) are found in this group. The gene sequence of mRNA molecules is useful for classifying bacterial types. A high degree of phenotypic instability is shown; that is, lines derived from a particular bacterial strain will come to differ from the original after only a few years. Hence, they can be very difficult to classify.

Other Search Engines

European Environment Agency Glossary of the European Environmental Agency
Wikipedia The Free Encyclopedia
Encyclopedia Britannica Highly authoritative source
EPA Terms Glossary of the U.S. Environmental Protection Agency
LingInfo Glossary of biological terms
Google Search The largest Internet Search Engine
Google Image Search for Images related to the term
Glossary Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Search
Update Glossary Entry | Add Glossary Entry
Back to Top