Microbiology Laboratory Report Identification of Unknown Bacteria 03/10/05- 04/01/05 Authors: Richard Hendricks‚ Jessica Prebish; NMU Abstract: Broth culture 16 was randomly selected by our group and subjected to qualitative tests for taxonomic identification. The culture did appear homogenous throughout the testing period and is currently retained by Northern Michigan University’s department of Microbiology. We suggest that culture 16 is an example of Escherichia coli. Background: Techniques
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Aseptic Technique and Culturing Microbes Lab 3 Brittney Case August 4th 2013 Section: Mic 101 Microbiology Session 1 Abstract: The Purpose of this experiment is to gain knowledge of how to properly use aseptic techniques to transfer cultures‚ learning about cultured media and how to distinguish various types of microbial growths as well as what is required for them to grow properly. Hypothesis: This exercise will allow me to gain knowledge of how to properly use aseptic techniques
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Population is all the organisms that both belong to the same species and live in the same geographical area. The area that is used to define the population is such that inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals from other areas. Normally breeding is substantially more common within the area than across the border. Ecosystem which consists of all the organisms living in a particular area‚ as well as all the nonliving‚ physical
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CH4 Prokaryotic Cells No nucleus Plasma membrane Selective permeability lets molecules pass. Enzymes for ATP production. Photosynthetic pigment on folding (on chromatophores or thylakoids). Leakage occurs if damaged by alcohols‚ ammonium‚ and polymyxin antibiotics. Phospholipid bilayer‚ peripheral proteins‚ integral protein‚ transmembrane protein‚ sterols‚ glycocalyx Movement across Membranes Simple diffusion: Movement of solute from high concentration to low Facilitative diffusion: Solute
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name Bacillus anthracis‚ the term Bacillus is the genus name - include the agents responsible for stomach ulcers and plague: Bacteria - are prokaryotes: Bacteria - impart distinctive flavors in foods such as yogurt and cheese: Bacteria - are obligate intracellular parasites: Viruses - have a protein coat that surrounds the genetic information: Viruses - include molds and yeasts: Fungi - contain the protozoa and algae: Protists - derive their energy from degrading organic materials: Fungi
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There are many different types of relationships and interactions between organisms A wide array of interactions among plants‚ animals‚ and microorganisms occurs in nature. Some of these relationships are characterized by a close physical association among species that continues for a large period of the life cycle. In 1879 German botanist Heinrich Anton de Bary coined the term "symbiosis" to describe these relationships‚ meaning the living together of different species of organisms. Many people associate
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AP Biology‚ Chapter 9 Cellular Respiration and Fermentation Life is Work 9.1 Catabolic pathways yield energy by oxidizing organic fuels Intro Catabolic Pathways and Production of ATP 1. Distinguish fermentation and cellular respiration. Fermentation Partial degradation of glucose Uses no O2 Yields some ATP Cellular respiration Complete degradation to CO2 and H2O Requires O2 = aerobic Yields much more ATP 2. Describe the summary equation for
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The results above show group wajaisha from class 1a obtained different results compared to my group. Wajaisha’s group used pH 4 and my group also used pH 4. The results that we obtained were after five days we had 35 cells present however wajaisha’s group obtained 42 cells after five days. My group obtained a value of 28000000 per litre and wajaisha’s group obtained 33600000 per litre. Our results may have been slightly different due to us not being able to record the number of cells present on the
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hydrothermal vents. They also live in environments that create heat themselves‚ such as a pile of compost of rubbish landfills. Thermophiles contain enzymes that can function at high temperatures. Thermophiles are classified into obligate (require high temperatures) and facultative (can also thrive at lower temperatures as well as high). Thermococcus celer is an example of thermophilic Archaea species. Halophiles Halophiles are organisms that live in high salt concentrations. They are a type of extremophile
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Bacteria‚ such as Vibrio natriegens‚ are single cellular‚ microscopic microorganisms. Bacteria grow by cell division‚ mainly by a process called binary fission‚ where two cells arise from one single cell (Madigan et al.‚ 2015). In bacteria such as Vibrio natriegens‚ who are curved-rod shaped microorganisms‚ they elongate to almost twice their own size and form a dividing wall in which splits the single cell into two daughter cells (Madigan et al.‚ 2015). There are four phases to bacterial cell growth:
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