Organisms ( www.embiotech.org )
... Nitrification: this process is completed in two steps i.e., in the first step nitrite (NO2-) are form and in the second step NO3- are formed. These two steps are caused by two enzymes, dehydrogenase and oxidase, secreted obligate autotrophic bacteria such as Nitrosomonas, nitrosococcus, nitrosocysti ...
... Nitrification: this process is completed in two steps i.e., in the first step nitrite (NO2-) are form and in the second step NO3- are formed. These two steps are caused by two enzymes, dehydrogenase and oxidase, secreted obligate autotrophic bacteria such as Nitrosomonas, nitrosococcus, nitrosocysti ...
File
... By disrupting plasma membranes, they allow cytoplasmic constituents to leak out of the cell. They also denature proteins (inhibit enzymes) and are surface active. Quaternary Ammonium Compounds are most effective against gram-positive bacteria. Good against fungi, amoeba, and enveloped viruses but ps ...
... By disrupting plasma membranes, they allow cytoplasmic constituents to leak out of the cell. They also denature proteins (inhibit enzymes) and are surface active. Quaternary Ammonium Compounds are most effective against gram-positive bacteria. Good against fungi, amoeba, and enveloped viruses but ps ...
Pond bacterium converts light to energy By RANDOLPH E
... for years in search of new organisms that may be useful in biotechnology or medicine. Indeed, these ponds have been studied for 40 to 50 years, Ward said, and yet they can still discover a completely new organism. The researchers discovered the bacterium living in the same hot springs where the micr ...
... for years in search of new organisms that may be useful in biotechnology or medicine. Indeed, these ponds have been studied for 40 to 50 years, Ward said, and yet they can still discover a completely new organism. The researchers discovered the bacterium living in the same hot springs where the micr ...
The “Tree of Life” Metabolic Pathways Calculation Of Energy Yields
... • A small amount of material, but may have a major catalytic effect, speeding the rate of abiotic organic matter synthesis • Clay minerals may have aided in concentrating simple organics, making the assembly of complex organic compounds more favorable • Icy comets crashing into earth’s atmosphere ca ...
... • A small amount of material, but may have a major catalytic effect, speeding the rate of abiotic organic matter synthesis • Clay minerals may have aided in concentrating simple organics, making the assembly of complex organic compounds more favorable • Icy comets crashing into earth’s atmosphere ca ...
Bacterial Infections cp
... – We use bacteria to “grow” vaccines – Some bacteria kill other strains of bacteria (ex. On skin…staphylococcus epidermis) – Estimated that ½ of all disease is caused by bacteria • Produces jobs • Produces $$ for prescription drug companies ...
... – We use bacteria to “grow” vaccines – Some bacteria kill other strains of bacteria (ex. On skin…staphylococcus epidermis) – Estimated that ½ of all disease is caused by bacteria • Produces jobs • Produces $$ for prescription drug companies ...
Paleontology and Life, part 2
... • The genealogical relaAonships between all living things can be represented by the Tree of Life • The Tree of Life represents the Phylogeny of organisms (that is, the history of their lineage as they change through Ame) ...
... • The genealogical relaAonships between all living things can be represented by the Tree of Life • The Tree of Life represents the Phylogeny of organisms (that is, the history of their lineage as they change through Ame) ...
The Prokaroytes
... Often found in puddles, ponds, streams, lakes, and moist places. Important producers in aquatic communities – basis for all of Earth’s food chains/webs (Important role as decomposers – recycle nutrients through the biosphere= heterotrophs) ...
... Often found in puddles, ponds, streams, lakes, and moist places. Important producers in aquatic communities – basis for all of Earth’s food chains/webs (Important role as decomposers – recycle nutrients through the biosphere= heterotrophs) ...
Chapter 1 Lecture Notes
... a. Biotechnology, the use of microbes to produce foods and chemicals, is centuries old. b. Genetic engineering is a new technique for biotechnology. Through genetic engineering, bacteria and fungi can produce a variety of proteins including vaccines and enzymes. c. Missing or defective genes in huma ...
... a. Biotechnology, the use of microbes to produce foods and chemicals, is centuries old. b. Genetic engineering is a new technique for biotechnology. Through genetic engineering, bacteria and fungi can produce a variety of proteins including vaccines and enzymes. c. Missing or defective genes in huma ...
Document
... 6. bacteria can be used to make food coloring, cosmetics, enzymes (for chemical reactions) 7. many bacteria cause food to spoil and can cause food poisoning E. Two Domains – 1. __BACTERIA___ – a. larger smaller domain than Archaea b. grouped by shape and structure, how they obtain food, what eat, wa ...
... 6. bacteria can be used to make food coloring, cosmetics, enzymes (for chemical reactions) 7. many bacteria cause food to spoil and can cause food poisoning E. Two Domains – 1. __BACTERIA___ – a. larger smaller domain than Archaea b. grouped by shape and structure, how they obtain food, what eat, wa ...
221_exam_1_2003
... peptone, lactose and a pH indicator so that lactose fermenting organisms turn red and oxygal, a compound that inhibits the growth of Gram-positive bacteria. MacConkey would best be described as a ___ medium. A. B. C. D. ...
... peptone, lactose and a pH indicator so that lactose fermenting organisms turn red and oxygal, a compound that inhibits the growth of Gram-positive bacteria. MacConkey would best be described as a ___ medium. A. B. C. D. ...
Form B
... anaerobic metabolism (e.g., H2S, CH4) can be detected in these soils because: A. they are very high in soil organic matter content B. their pores remain waterlogged after a rainfall C. they contain soil aggregates that are restricted in radial O2 diffusion and anoxic microenvironments that will supp ...
... anaerobic metabolism (e.g., H2S, CH4) can be detected in these soils because: A. they are very high in soil organic matter content B. their pores remain waterlogged after a rainfall C. they contain soil aggregates that are restricted in radial O2 diffusion and anoxic microenvironments that will supp ...
Bacteria
... One bacterium transfers all or part of its chromosome to another Pilus (pili) Bridge-like ...
... One bacterium transfers all or part of its chromosome to another Pilus (pili) Bridge-like ...
... November 2008 at the San Buenaventura University's Clinical Laboratory in Cartagena. Antibiotic sensitivity was determined by the Kirby Bauer method. Results Out of the total specimens (1,384) analysed over the four-year study period, 455 of the urine samples (32.9 %) were culture positive, most (81 ...
Fungal Lipids: The Biochemistry of Lipid Accumulation
... describe lipids as a group of naturally occurring compounds, which have in common a ready solubility in such organic solvents as hydrocarbons, chloroform, benzene, ethers and alcohols [2]–[4]. A more specific definition of lipids than one based simply on solubility is necessary, and most scientists ...
... describe lipids as a group of naturally occurring compounds, which have in common a ready solubility in such organic solvents as hydrocarbons, chloroform, benzene, ethers and alcohols [2]–[4]. A more specific definition of lipids than one based simply on solubility is necessary, and most scientists ...
Types of Bacteria
... rod-shaped/cylindrical • Found in soil and dust. • Frequently in rice dishes & sometime in pasta, meat or vegetable dishes. • Illness can be caused by a small number of bacteria. • Forms spores that are resistant to heat. • Symptoms: ...
... rod-shaped/cylindrical • Found in soil and dust. • Frequently in rice dishes & sometime in pasta, meat or vegetable dishes. • Illness can be caused by a small number of bacteria. • Forms spores that are resistant to heat. • Symptoms: ...
1. List unique characteristics that distinguish archaea from bacteria.
... radiation over billions of years Examples: cyanobacteria – make oxygen saprobes – decompose dead materials ...
... radiation over billions of years Examples: cyanobacteria – make oxygen saprobes – decompose dead materials ...
microbes overview
... proteins and carbohydrates and active in mineralization of organic matter and produce yellow to orange colonies. ...
... proteins and carbohydrates and active in mineralization of organic matter and produce yellow to orange colonies. ...
Bacteria Taxonomy – Slide Viewer Set 217
... Bacteria Taxonomy – Slide Viewer Set 217 Introduction: 1. What is taxonomy? __________________________________________________________ 2. Who devised the present system of classification? _________________________________________ 3. Describe the two word naming system. ______________________________ ...
... Bacteria Taxonomy – Slide Viewer Set 217 Introduction: 1. What is taxonomy? __________________________________________________________ 2. Who devised the present system of classification? _________________________________________ 3. Describe the two word naming system. ______________________________ ...
Bacteria - LiveText
... Characteristics used for classifying: 1) Composition of the cell wall – identified with Gram staining technique Gram positive – stains purple – thick outer layer of peptidoglycan Gram negative – stains pink/red – lipid layer covering thin layer of peptidoglycan Peptidoglycan – a protein-carbohydrat ...
... Characteristics used for classifying: 1) Composition of the cell wall – identified with Gram staining technique Gram positive – stains purple – thick outer layer of peptidoglycan Gram negative – stains pink/red – lipid layer covering thin layer of peptidoglycan Peptidoglycan – a protein-carbohydrat ...
Chapter 1
... • Microbial Ecology • Bacteria recycle carbon, nutrients, sulfur, and phosphorus that can be used by plants and animals. ...
... • Microbial Ecology • Bacteria recycle carbon, nutrients, sulfur, and phosphorus that can be used by plants and animals. ...
Phospholipid-derived fatty acids
Phospholipid-derived fatty acids (PLFA) are widely used in microbial ecology as chemotaxonomic markers of bacteria and other organisms. Phospholipids are the primary lipids composing cellular membranes. Phospholipids can be saponified, which releases the fatty acids contained in their diglyceride tail. Once the phospholipids of an unknown sample are saponified, the composition of the resulting PLFA can be compared to the PLFA of known organisms to determine the identity of the sample organism. PLFA analysis may be combined with other techniques, such as stable isotope probing to determine which microbes are metabolically active in a sample. PLFA analysis was pioneered by D.C. White, MD, PhD, at the University of Tennessee, in the early to mid 1980s.