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Prokaryotes – Bacteria
... the surface of some bacteria are structures called pili (pilus-singular) that help bacteria adhere to surfaces. Color and label all the pili LIGHT GREEN. Some bacteria are motile (can move). Many of these bacteria have long, whip like structures called flagella (flagellumsingular). Color and label t ...
... the surface of some bacteria are structures called pili (pilus-singular) that help bacteria adhere to surfaces. Color and label all the pili LIGHT GREEN. Some bacteria are motile (can move). Many of these bacteria have long, whip like structures called flagella (flagellumsingular). Color and label t ...
Biology 2005 - Spring Branch ISD
... 1. Describe the general structure of bacteria. 2. Sketch the three shapes of bacteria. Label each. 3. Do bacteria move? Explain. 4. Bacteria may be either autotrophic or heterotrophic in order to acquire energy. Describe how this is accomplished in the following: Chemoheterotrophic bacteria Phot ...
... 1. Describe the general structure of bacteria. 2. Sketch the three shapes of bacteria. Label each. 3. Do bacteria move? Explain. 4. Bacteria may be either autotrophic or heterotrophic in order to acquire energy. Describe how this is accomplished in the following: Chemoheterotrophic bacteria Phot ...
CULTURED DIVERSITY OF ANOXYGENIC PHOTOTROPHIC
... Cell material for DNA isolation was taken from 1-2 ml of well grown liquid culture. DNA was extracted and purified by using the QIAGEN genomic DNA buffer set. Recombinant Taq polymerase was used for PCR, which was started with the primers 5’– GTTTGATCCTGGCTCAG–3’ and 5’–TACCTTGTTACGACTTCA–3’ (Escher ...
... Cell material for DNA isolation was taken from 1-2 ml of well grown liquid culture. DNA was extracted and purified by using the QIAGEN genomic DNA buffer set. Recombinant Taq polymerase was used for PCR, which was started with the primers 5’– GTTTGATCCTGGCTCAG–3’ and 5’–TACCTTGTTACGACTTCA–3’ (Escher ...
Survey of Microbes Part I: Important prokaryotes
... (STSS), causes blood pressure to drop rapidly and various organs to fail. About 20% of patients with necrotizing fasciitis and more than half of those with STSS will die. Generally, the mortality rate for other forms of invasive group A streptococcal disease is 10-15%. ...
... (STSS), causes blood pressure to drop rapidly and various organs to fail. About 20% of patients with necrotizing fasciitis and more than half of those with STSS will die. Generally, the mortality rate for other forms of invasive group A streptococcal disease is 10-15%. ...
BIO130ch01_lecture
... and vaccines using living organisms • Genetic engineering: Manipulating the genes of organisms to make new products ...
... and vaccines using living organisms • Genetic engineering: Manipulating the genes of organisms to make new products ...
Prokaryotes – Bacteria
... cell membrane PINK. Along the surface of some bacteria are structures called pili (pilussingular) that help bacteria adhere to surfaces. Color and label all the pili LIGHT GREEN. Some bacteria are motile (can move). Many of these bacteria have long, whip like structures called flagella (flagellum-si ...
... cell membrane PINK. Along the surface of some bacteria are structures called pili (pilussingular) that help bacteria adhere to surfaces. Color and label all the pili LIGHT GREEN. Some bacteria are motile (can move). Many of these bacteria have long, whip like structures called flagella (flagellum-si ...
antibacterials
... 3. Genetic resistance of bacteria. If antibiotics are used extensively some bacteria survive and pass on their immunity to next generations. Such examples are Typhoid, Gonorrhoea and Malaria. A microorganism may become resistant as a result of mutation. A mutated bacteria may produce an enzyme that ...
... 3. Genetic resistance of bacteria. If antibiotics are used extensively some bacteria survive and pass on their immunity to next generations. Such examples are Typhoid, Gonorrhoea and Malaria. A microorganism may become resistant as a result of mutation. A mutated bacteria may produce an enzyme that ...
Where can we find bacteria?
... How can you find bacteria? • You can’t see it, so how do you find it? • Under the right conditions, bacteria grows very fast, exponentially • Some bacteria populations can double every 10 minutes • Bacteria grow in colonies – a colony is a visible mass of bacterial growth on solid medium that devel ...
... How can you find bacteria? • You can’t see it, so how do you find it? • Under the right conditions, bacteria grows very fast, exponentially • Some bacteria populations can double every 10 minutes • Bacteria grow in colonies – a colony is a visible mass of bacterial growth on solid medium that devel ...
Microbes and Health - Bio-Rad
... experimental host and identified as being identical to the original specific causative agent ...
... experimental host and identified as being identical to the original specific causative agent ...
Identification of Bacteria
... species. Bacteria come in a number of shapes. Most, however, are cocci (round), bacilli (rod-shaped), or spirilla (spirals). The way these individual cells are arranged is also variable among bacterial species. Although some species exist singularly, bacteria can be linked together in a long chain ( ...
... species. Bacteria come in a number of shapes. Most, however, are cocci (round), bacilli (rod-shaped), or spirilla (spirals). The way these individual cells are arranged is also variable among bacterial species. Although some species exist singularly, bacteria can be linked together in a long chain ( ...
M220 Lecture 7 - Napa Valley College
... the psychrophiles. The psychrotrophs are the most likely to be encountered in low-temperature food spoilage as they grow fairly well at refrigerator temperatures. The hyperthermophiles (extreme thermophiles) have an optimum temperature of 80 degrees C. or higher. Members of the Archaea can be extrem ...
... the psychrophiles. The psychrotrophs are the most likely to be encountered in low-temperature food spoilage as they grow fairly well at refrigerator temperatures. The hyperthermophiles (extreme thermophiles) have an optimum temperature of 80 degrees C. or higher. Members of the Archaea can be extrem ...
Bacteria – Low GC Gram Positive
... • Used as model organism for cellular differentiation, division and other processes • Its genome was one of first to be sequenced • has families of genes expanded by gene duplication • 10 integrated prophages or remnants of prophages ...
... • Used as model organism for cellular differentiation, division and other processes • Its genome was one of first to be sequenced • has families of genes expanded by gene duplication • 10 integrated prophages or remnants of prophages ...
Chapter 23 Bacteria Prokaryotes are single celled organisms that do
... Biology of Prokaryotes o Structure and Function Cell Wall is made of peptidoglycan instead of cellulose Cell membrane regulates what enters and leaves the cell The cell membranes of photosynthetic bacteria contain thylakoids which contain pigments DNA is a single closed loop attached at one ...
... Biology of Prokaryotes o Structure and Function Cell Wall is made of peptidoglycan instead of cellulose Cell membrane regulates what enters and leaves the cell The cell membranes of photosynthetic bacteria contain thylakoids which contain pigments DNA is a single closed loop attached at one ...
for pathogens?
... • Synergism: free-living species benefits together but is not necessary for survival • Together the participants cooperate to produce a result that none of them could do alone • Gum disease, dental caries, and some bloodstream infections involve mixed infections of bacteria interacting synergistical ...
... • Synergism: free-living species benefits together but is not necessary for survival • Together the participants cooperate to produce a result that none of them could do alone • Gum disease, dental caries, and some bloodstream infections involve mixed infections of bacteria interacting synergistical ...
Full-Text PDF
... study, these included several proteins predicted to be secreted but also many without a secretion signal. This suggests a non-canonical secretion pathway and/or the accumulation of proteins after cell death. A functional ontology analysis indicated that a total of 16 different metabolic pathways wer ...
... study, these included several proteins predicted to be secreted but also many without a secretion signal. This suggests a non-canonical secretion pathway and/or the accumulation of proteins after cell death. A functional ontology analysis indicated that a total of 16 different metabolic pathways wer ...
Shapes of Bacteria
... C. trachomatis- primarily a human pathogen and the causative agent of eye, genital and respiratory diseases. It is the cause of the most prevalent sexually transmitted disease in the industrialized ...
... C. trachomatis- primarily a human pathogen and the causative agent of eye, genital and respiratory diseases. It is the cause of the most prevalent sexually transmitted disease in the industrialized ...
Exploring the Normal Flora of the Human Body
... Because of the complex chemical composition of the slime, biofilms are resistant to immune systems, disinfectants, and antibiotics (about 1000 times more resistant). Significant problem on internal medical devices such as catheters, stents, and mechanical heart valves; also problematic on contac ...
... Because of the complex chemical composition of the slime, biofilms are resistant to immune systems, disinfectants, and antibiotics (about 1000 times more resistant). Significant problem on internal medical devices such as catheters, stents, and mechanical heart valves; also problematic on contac ...
Spirochetes - Mouth Matters
... familiar diseases caused by spirochetes. There are fifty-three known strains of oral spirochetes. Their corkscrew-shaped active forms easily drill into cell walls of dense tissues like bone that other organisms can’t enter. They arrive and infect via the circulatory system. Their active forms regula ...
... familiar diseases caused by spirochetes. There are fifty-three known strains of oral spirochetes. Their corkscrew-shaped active forms easily drill into cell walls of dense tissues like bone that other organisms can’t enter. They arrive and infect via the circulatory system. Their active forms regula ...
Biofilm
![](https://commons.wikimedia.org/wiki/Special:FilePath/Staphylococcus_aureus_biofilm_01.jpg?width=300)
A biofilm is any group of microorganisms in which cells stick to each other on a surface. These adherent cells are frequently embedded within a self-produced matrix of extracellular polymeric substance (EPS). Biofilm extracellular polymeric substance, which is also referred to as slime (although not everything described as slime is a biofilm), is a polymeric conglomeration generally composed of extracellular DNA, proteins, and polysaccharides. Biofilms may form on living or non-living surfaces and can be prevalent in natural, industrial and hospital settings. The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single-cells that may float or swim in a liquid medium.Microbes form a biofilm in response to many factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics. When a cell switches to the biofilm mode of growth, it undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated.