basic of phytopathology - isb
... Obligate parasites reproducing only in host cells (replication is dependent on the host cell). They usually have a very narrow host range. They attack all species of living organisms, distinguish plant viruses, animal viruses and bacteriophages (viruses on bacteria). Recently it is described abo ...
... Obligate parasites reproducing only in host cells (replication is dependent on the host cell). They usually have a very narrow host range. They attack all species of living organisms, distinguish plant viruses, animal viruses and bacteriophages (viruses on bacteria). Recently it is described abo ...
Bacteria A NATURALLY-OCCURRING PHENOMENON
... bacteria are getting energy and some are performing other life functions by transforming minerals to different chemical forms. These bacteria are of no threat to human health and have been involved in the iron and manganese cycles for billions of years. Some bacteria are very useful because they rem ...
... bacteria are getting energy and some are performing other life functions by transforming minerals to different chemical forms. These bacteria are of no threat to human health and have been involved in the iron and manganese cycles for billions of years. Some bacteria are very useful because they rem ...
Editable PPT - Science Prof Online
... science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science. • The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerP ...
... science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science. • The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerP ...
Antibiotics - Noadswood Science
... around the discs (where the bacteria have been killed). Measure the radius of any clear areas. C. Design and draw up a table in which to record your results, and also those from the rest of the class. D. You may wish to determine the mean results for the ...
... around the discs (where the bacteria have been killed). Measure the radius of any clear areas. C. Design and draw up a table in which to record your results, and also those from the rest of the class. D. You may wish to determine the mean results for the ...
Chapter 12: The Viruses and Virus
... • Phase 3: Biosynthesis is the production of new phage genomes and capsid parts • Phase 4: Maturation is the assembly of viral parts into complete virus particles • Phase 5: Release is the exit of virions from the bacterium • It is also called the lysis stage when the cell is ruptured • Temperate ph ...
... • Phase 3: Biosynthesis is the production of new phage genomes and capsid parts • Phase 4: Maturation is the assembly of viral parts into complete virus particles • Phase 5: Release is the exit of virions from the bacterium • It is also called the lysis stage when the cell is ruptured • Temperate ph ...
Infection Control
... Divide into two new cells – mitosis Inactive (spore forming stage)-form spherical spores with tough outer covering for protection-cannot be harmed by disinfectants When conditions are favorable they grow and reproduce. ...
... Divide into two new cells – mitosis Inactive (spore forming stage)-form spherical spores with tough outer covering for protection-cannot be harmed by disinfectants When conditions are favorable they grow and reproduce. ...
Chapter 13
... Recruit the cell’s metabolic pathways to increase their numbers Cause most of the diseases that plague the industrialized world Virus – miniscule, acellular, infectious agent having one or several pieces of either DNA or RNA No cytoplasmic membrane, cytosol, organelles (with one exception) Have extr ...
... Recruit the cell’s metabolic pathways to increase their numbers Cause most of the diseases that plague the industrialized world Virus – miniscule, acellular, infectious agent having one or several pieces of either DNA or RNA No cytoplasmic membrane, cytosol, organelles (with one exception) Have extr ...
Hepatitis - Arkansas State University
... – Liver especially important in metabolism • Breakdown of drugs, toxins, waste products – Damage results in accumulation of bilirubin • Bilirubin is a stage in hemoglobin breakdown • Results in yellow color: jaundice – Hepatitis can be caused by several different viruses • Hepatitis A, B, and C viru ...
... – Liver especially important in metabolism • Breakdown of drugs, toxins, waste products – Damage results in accumulation of bilirubin • Bilirubin is a stage in hemoglobin breakdown • Results in yellow color: jaundice – Hepatitis can be caused by several different viruses • Hepatitis A, B, and C viru ...
biology of prokaryotes
... a. Lyme disease. b. gonorrhea. c. tuberculosis. d. cholera. _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause ...
... a. Lyme disease. b. gonorrhea. c. tuberculosis. d. cholera. _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause ...
Study Guide
... a. Lyme disease. b. gonorrhea. c. tuberculosis. d. cholera. _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause ...
... a. Lyme disease. b. gonorrhea. c. tuberculosis. d. cholera. _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause ...
Viruses
... The process of progeny viruses getting out of host cell. – Naked viruses: released by cell lysis. – Enveloped viruses: usually released by budding. ...
... The process of progeny viruses getting out of host cell. – Naked viruses: released by cell lysis. – Enveloped viruses: usually released by budding. ...
spots - GLLM Moodle 2
... hygiene, can be found in polluted water • Bacterial –quite rare but serious ,needs urgent treatment. • About 2,500 – 3,000 reported cases each year • Meningococcal – A, B, & C (B most common) • Pneumococcal • Hib vaccine introduce in routine immunisation programme in1992 ...
... hygiene, can be found in polluted water • Bacterial –quite rare but serious ,needs urgent treatment. • About 2,500 – 3,000 reported cases each year • Meningococcal – A, B, & C (B most common) • Pneumococcal • Hib vaccine introduce in routine immunisation programme in1992 ...
File
... What is selective media? Give examples What is differential media? Give examples What are selective and differential media? Give examples How can isolation be achieved? Which population counts only count live bacteria, which count live and dead bacteria? Can bacteria survive without a cell wall? If ...
... What is selective media? Give examples What is differential media? Give examples What are selective and differential media? Give examples How can isolation be achieved? Which population counts only count live bacteria, which count live and dead bacteria? Can bacteria survive without a cell wall? If ...
Bacteria and ArchaeBacteria
... • A third group of bacteria can survive with or without oxygen and they are called facultative anaerobes. ...
... • A third group of bacteria can survive with or without oxygen and they are called facultative anaerobes. ...
Old Exam#3
... B) Alkaline iron-rich waters C) Acidic iron-rich waters D) Acidic iron-poor waters E) There are no such things as iron oxidizing bacteria --------8.Microbial life appeared on Earth as early as: a. 10.4 billion years ago d. 58 million years ago b. 3.8 billion years ago e. 29 million years ago c. 1.2 ...
... B) Alkaline iron-rich waters C) Acidic iron-rich waters D) Acidic iron-poor waters E) There are no such things as iron oxidizing bacteria --------8.Microbial life appeared on Earth as early as: a. 10.4 billion years ago d. 58 million years ago b. 3.8 billion years ago e. 29 million years ago c. 1.2 ...
Proteases and Viruses
... These reactions, in effect help to change the molecular structure, or break down the protein molecules. Based on clinical studies, it is known that proteases are able to dissolve almost all proteins as long as they are not components of living cells. Normal living cells are protected against lysis b ...
... These reactions, in effect help to change the molecular structure, or break down the protein molecules. Based on clinical studies, it is known that proteases are able to dissolve almost all proteins as long as they are not components of living cells. Normal living cells are protected against lysis b ...
Special structure
... 2. Heat stable enzyme 3. High G+C% 4. Less water 5. Amino acid containing surfur(cys) ...
... 2. Heat stable enzyme 3. High G+C% 4. Less water 5. Amino acid containing surfur(cys) ...
chapt17b_lecture
... Prokaryotic mRNAs are translated in to proteins immediately after synthesis but eukaryotic mRNAs are extensively processed before translation. ...
... Prokaryotic mRNAs are translated in to proteins immediately after synthesis but eukaryotic mRNAs are extensively processed before translation. ...
File
... D. Pathogenic bacteria can be treated with antibiotics. Antibiotics kill the bacteria by destroying the cell wall. Bacteria that are resistant to antibiotics can survive and reproduce by natural selection. This means that new antibiotics must continually be developed. ...
... D. Pathogenic bacteria can be treated with antibiotics. Antibiotics kill the bacteria by destroying the cell wall. Bacteria that are resistant to antibiotics can survive and reproduce by natural selection. This means that new antibiotics must continually be developed. ...
Microorganisms Microorganisms (microbes) are small living
... Biogas is a renewable fuel made using methane gas produced from waste materials by bacteria. It is used to produce electricity. Gasohol is another use for the alcohol produced by yeast. It is used as a fuel for vehicles. Microbes and breaking down waste: Sewage treatment- In treatment works the main ...
... Biogas is a renewable fuel made using methane gas produced from waste materials by bacteria. It is used to produce electricity. Gasohol is another use for the alcohol produced by yeast. It is used as a fuel for vehicles. Microbes and breaking down waste: Sewage treatment- In treatment works the main ...
B 1_1 Bacteria - Philip Rogers Elementary School
... spheres, rods, and spirals. Sphere-shaped bacteria are called cocci (KAHK si), rod-shaped bacteria are called bacilli (bah SIH li), and spiral-shaped bacteria are called spirilla (spi RIH luh). ...
... spheres, rods, and spirals. Sphere-shaped bacteria are called cocci (KAHK si), rod-shaped bacteria are called bacilli (bah SIH li), and spiral-shaped bacteria are called spirilla (spi RIH luh). ...
Helpful and Harmful Bacteria
... • This is made by the action of a particular type of bacteria on milk. • Lactobacillus bulgaricus and Streptococcus thermophilus • These bacteria change milk sugar (lactose) into lactic acid. • The acid gives yoghurt its characteristic sour flavour and also causes the curd to separate from the ...
... • This is made by the action of a particular type of bacteria on milk. • Lactobacillus bulgaricus and Streptococcus thermophilus • These bacteria change milk sugar (lactose) into lactic acid. • The acid gives yoghurt its characteristic sour flavour and also causes the curd to separate from the ...
1. Viral Structure What exactly is a Virus? Chapter 13: Viruses
... animal viruses enters the host cell. This requires the uncoating of the viral genetic material before biosynthesis can occur: • dissociation of the capsid to allow viral DNA or RNA to be copied, viral genes to be expressed • can occur in cytoplasm or in a lysosome via host or viral enzymes ...
... animal viruses enters the host cell. This requires the uncoating of the viral genetic material before biosynthesis can occur: • dissociation of the capsid to allow viral DNA or RNA to be copied, viral genes to be expressed • can occur in cytoplasm or in a lysosome via host or viral enzymes ...
Bacteriophage
A bacteriophage /ˈbækˈtɪər.i.oʊˌfeɪdʒ/ (informally, phage /ˈfeɪdʒ/) is a virus that infects and replicates within a bacterium. The term is derived from ""bacteria"" and the Greek: φαγεῖν (phagein), ""to devour"". Bacteriophages are composed of proteins that encapsulate a DNA or RNA genome, and may have relatively simple or elaborate structures. Their genomes may encode as few as four genes, and as many as hundreds of genes. Phages replicate within the bacterium following the injection of their genome into its cytoplasm. Bacteriophages are among the most common and diverse entities in the biosphere.Phages are widely distributed in locations populated by bacterial hosts, such as soil or the intestines of animals. One of the densest natural sources for phages and other viruses is sea water, where up to 9×108 virions per milliliter have been found in microbial mats at the surface, and up to 70% of marine bacteria may be infected by phages.They have been used for over 90 years as an alternative to antibiotics in the former Soviet Union and Central Europe, as well as in France. They are seen as a possible therapy against multi-drug-resistant strains of many bacteria (see phage therapy).