Introduction to Prokaryotes Lab Report
Introduction to Prokaryotes in Different Temperature Environments
Angelina Orozco
Biology 1108
Wednesday 7:30 am
Abstract
Prokaryotes are single-celled organisms that can survive in extreme environments. Bacteria is the more numerous type of prokaryotes. The group hypothesizes that the samples taken from different environments will all cultivate diverse morphology in fast growing rates in each environment. The aseptic technique was used to cultivate bacteria from different environments. The diversity of morphology and the growing rate of the bacteria was different in each environment.
Introduction
Prokaryotes are the oldest known life-forms, having existed for the last 3.5 billion years. Microscopic in size, they are single-celled organisms. Prokaryotic species can survive in extreme habitats that the other life-forms are not capable of inhabiting. Prokaryotes have different shapes, the three most common shapes are spherical (cocci), rod shaped (bacilli), and spiral (spirilla). The prokaryotic cellular structures are unique to their classification. Prokaryotes have an external cell wall and a plasma membrane. The cell wall keeps the shape of the cell, protects the cell, and averts the cells from bursting in a hyposmotic environment. Prokaryotic cells contain a unique material called peptidoglycan (Sadava et al., 2011). Also metabolic diversity is among the criteria used in classifying prokaryotes. The term nutrition refers to the means an organism uses to obtain two energy sources: energy and a carbon source. Carbon sources may be either organic, meaning from a living organism, or inorganic, such as carbon dioxide. Prokaryotes split into two lineages known as Archae and Bacteria. The Bacteria are more numerous than the Archae. Bacteria can be endospore-forming bacteria. Bacteria that form endospores are able to survive harsh and severe conditions. Bacteria can also be Enteric Bacteria, they inhabit the intestinal tracts of animals. One species is
Angelina Orozco
Biology 1108
Wednesday 7:30 am
Abstract
Prokaryotes are single-celled organisms that can survive in extreme environments. Bacteria is the more numerous type of prokaryotes. The group hypothesizes that the samples taken from different environments will all cultivate diverse morphology in fast growing rates in each environment. The aseptic technique was used to cultivate bacteria from different environments. The diversity of morphology and the growing rate of the bacteria was different in each environment.
Introduction
Prokaryotes are the oldest known life-forms, having existed for the last 3.5 billion years. Microscopic in size, they are single-celled organisms. Prokaryotic species can survive in extreme habitats that the other life-forms are not capable of inhabiting. Prokaryotes have different shapes, the three most common shapes are spherical (cocci), rod shaped (bacilli), and spiral (spirilla). The prokaryotic cellular structures are unique to their classification. Prokaryotes have an external cell wall and a plasma membrane. The cell wall keeps the shape of the cell, protects the cell, and averts the cells from bursting in a hyposmotic environment. Prokaryotic cells contain a unique material called peptidoglycan (Sadava et al., 2011). Also metabolic diversity is among the criteria used in classifying prokaryotes. The term nutrition refers to the means an organism uses to obtain two energy sources: energy and a carbon source. Carbon sources may be either organic, meaning from a living organism, or inorganic, such as carbon dioxide. Prokaryotes split into two lineages known as Archae and Bacteria. The Bacteria are more numerous than the Archae. Bacteria can be endospore-forming bacteria. Bacteria that form endospores are able to survive harsh and severe conditions. Bacteria can also be Enteric Bacteria, they inhabit the intestinal tracts of animals. One species is
References: Elizabeth J. Walsh, Paul E. Hotchkin, Shawn T. Dash, (2010). 'Prokaryotes '. In: Susan watts and Joan Staniswalis (ed), Organismal Biology. 1st ed. e.g. England: Kendall Hunt . pp.(13-45). Shigekawa, K., & Dower, W. J. (1988). Electroporation of eukaryotes and prokaryotes: a general approach to the introduction of macromolecules into cells. BioTechniques, 6(8), 742. Theresa Tiel (2009). introduction to bacteria. [ONLINE] Available at: http://www.umsl.edu/~microbes/introductiontobacteria.pdf. [Last Accessed 02/2013].