General Properties of virus
... It is very smallest infectious agent (20 –350nm) Obligate intracellular parasites Contain only one type of nucleic acid, either DNA or RNA Do not possess cellular organization Lacks enzymes necessary for protein & NA synthesis Depends on host cell machinery for replication Causes a large ...
... It is very smallest infectious agent (20 –350nm) Obligate intracellular parasites Contain only one type of nucleic acid, either DNA or RNA Do not possess cellular organization Lacks enzymes necessary for protein & NA synthesis Depends on host cell machinery for replication Causes a large ...
viral pathogensis
... of the virus and may have: –mutation in the viral genome. – deletion in the viral genome. –incorrect enzymes. (Therefore the virus can’t continue its replication cycle). 3-interaction of Interferons: Interferons are cytokines produced by some cells (infected cells)that Protect other cells from infec ...
... of the virus and may have: –mutation in the viral genome. – deletion in the viral genome. –incorrect enzymes. (Therefore the virus can’t continue its replication cycle). 3-interaction of Interferons: Interferons are cytokines produced by some cells (infected cells)that Protect other cells from infec ...
VIRUSES - Piscataway Township Schools
... particle that invades and then multiplies inside a living cell. – Do not use energy to grow or to respond to their surroundings – Cannot make food, take in food, or produce wastes ...
... particle that invades and then multiplies inside a living cell. – Do not use energy to grow or to respond to their surroundings – Cannot make food, take in food, or produce wastes ...
Microorganisms Informational Text with Questions
... a deadly disease in East Africa that is carried by the Tsetse Fly. If it is not treated in the early stages, it can lead to death. Sporozoans: Sporozoans cannot move around at all. They only survive inside another living organism, or host. They are not beneficial in any way to the host. An example i ...
... a deadly disease in East Africa that is carried by the Tsetse Fly. If it is not treated in the early stages, it can lead to death. Sporozoans: Sporozoans cannot move around at all. They only survive inside another living organism, or host. They are not beneficial in any way to the host. An example i ...
Immunology Stack
... 1. Stress and other factors cause the latent virus to begin replicating in the ganglion. The resulting virions are shed from the axon tip and then begin replication in the epithelium. 2. A low level of virus production occurs within ganglion cells and is release in a burst from the axon. These then ...
... 1. Stress and other factors cause the latent virus to begin replicating in the ganglion. The resulting virions are shed from the axon tip and then begin replication in the epithelium. 2. A low level of virus production occurs within ganglion cells and is release in a burst from the axon. These then ...
Ch 20 Viruses and Prokaryotes
... Yogurt, sauerkraut, and buttermilk Digest petroleum and remove human-made waste from water Synthesize drugs and chemicals. ...
... Yogurt, sauerkraut, and buttermilk Digest petroleum and remove human-made waste from water Synthesize drugs and chemicals. ...
... Cell phones have become a necessity, imposing significant changes in modern society. Cell phones have favorable conditions for the growth of microorganisms due to heat emission or harboring dirt and sweat. In this study 166 equipment with traditional keyboard (n = 83) and touch screen (n = 83) were ...
Report on PLASWIRES and LIA research group
... are being expressed and they generate its associated protein, or deactivated. Can activation or repression of a gene be controlled? The answer is yes. There are external signs that can control gene expression. “Genetic programs are executed or not depending on the proteins and other biological signs ...
... are being expressed and they generate its associated protein, or deactivated. Can activation or repression of a gene be controlled? The answer is yes. There are external signs that can control gene expression. “Genetic programs are executed or not depending on the proteins and other biological signs ...
Trying Not to Sneeze
... 2. HIV - virus, blood,sexual contact, breastmilk 3. Strep - bacteria, moisture secretions ...
... 2. HIV - virus, blood,sexual contact, breastmilk 3. Strep - bacteria, moisture secretions ...
Viruses and Bacteria
... • Viruses can come in all different types of shapes. • Viruses also come in different sizes, but all viruses are much, much smaller than even the smallest cells. – This makes viruses even smaller than bacteria. ...
... • Viruses can come in all different types of shapes. • Viruses also come in different sizes, but all viruses are much, much smaller than even the smallest cells. – This makes viruses even smaller than bacteria. ...
Science Forward--Evolution
... questions because evolution in a virus is like hitting the fast forward button if you compare it to human evolution, or even bacterial evolution is quite fast. But viruses are even faster. Flora Lichtman: [1:00] The intersection between evolution and public health is the focus of this video. Because ...
... questions because evolution in a virus is like hitting the fast forward button if you compare it to human evolution, or even bacterial evolution is quite fast. But viruses are even faster. Flora Lichtman: [1:00] The intersection between evolution and public health is the focus of this video. Because ...
A model of the outer membrane of Gram
... the cell, and hence is a key aspect that must be considered when developing antibiotics. Furthermore, recent studies have suggested that drug resistance appears much less likely to develop when the bacterial membrane is targeted instead of biochemical or biosynthetic pathways taking place inside the ...
... the cell, and hence is a key aspect that must be considered when developing antibiotics. Furthermore, recent studies have suggested that drug resistance appears much less likely to develop when the bacterial membrane is targeted instead of biochemical or biosynthetic pathways taking place inside the ...
(Colony) Morphology
... A- Establishing Enzymatic Capabilities • Enzymatic content of an organism is a direct reflection of the organism’s genetic makeup, which, in turn, is specific for individual bacterial species. • In diagnostic bacteriology, enzyme-based tests are designed to measure: Either Presence of one specifi ...
... A- Establishing Enzymatic Capabilities • Enzymatic content of an organism is a direct reflection of the organism’s genetic makeup, which, in turn, is specific for individual bacterial species. • In diagnostic bacteriology, enzyme-based tests are designed to measure: Either Presence of one specifi ...
cell wall Capsule
... Plants would have to be fertilized to get the proper amounts of usable nitrogen. Without it, the plants would die. ...
... Plants would have to be fertilized to get the proper amounts of usable nitrogen. Without it, the plants would die. ...
Chapter 24: Communicable Diseases
... 5. If you have a bacterial infection, is it safe to take leftover antibiotics from an earlier illness or to use an antibiotic prescribed for someone else? Why or why not? 6. If a doctor determines that your illness is not caused by bacteria, what should you do to help control antibiotic resistance? ...
... 5. If you have a bacterial infection, is it safe to take leftover antibiotics from an earlier illness or to use an antibiotic prescribed for someone else? Why or why not? 6. If a doctor determines that your illness is not caused by bacteria, what should you do to help control antibiotic resistance? ...
Chapter 10 Supplement
... No microorganisms are able to live in the stomach, owing to the extremely low pH of the stomach contents. ...
... No microorganisms are able to live in the stomach, owing to the extremely low pH of the stomach contents. ...
Legionnaire’s Disease - Newcastle University
... •The most common way to treat the disease is with drugs, there are many different types but the two main categories are quinolones and the more modern macrolides. •The most popular of each group being levofloxacin and azithromycin respectively. •These tend to be the most effective as they can enter ...
... •The most common way to treat the disease is with drugs, there are many different types but the two main categories are quinolones and the more modern macrolides. •The most popular of each group being levofloxacin and azithromycin respectively. •These tend to be the most effective as they can enter ...
Bacteria - Eubacteria
... • Cells are generally very small • Cells may double in size but only before binary fission • Growth mostly in terms of cell number or colony size, etc. • Doubling time in cell numbers may be 20 minutes in ideal conditions • Could quickly take over the earth if conditions could remain ideal • Very co ...
... • Cells are generally very small • Cells may double in size but only before binary fission • Growth mostly in terms of cell number or colony size, etc. • Doubling time in cell numbers may be 20 minutes in ideal conditions • Could quickly take over the earth if conditions could remain ideal • Very co ...
Antiviral Agents – Dr.Roshna
... Synthesis of early regulatory proteins, eg, nucleic acid polymerases; Synthesis of new viral RNA or DNA; Synthesis of late, structural proteins; ...
... Synthesis of early regulatory proteins, eg, nucleic acid polymerases; Synthesis of new viral RNA or DNA; Synthesis of late, structural proteins; ...
SUPPLEMENTARY DATA: SUPPLEMENTARY METHODS: DNA
... SUPPLEMENTARY METHODS: DNA preparation L. drancourtii was grown on BCYE agar (BioMerieux, Marcy l’Etoile, France) in a 5% CO2 atmosphere at 32°C for 3 days. Genomic DNA was extracted using the phenol/chloroform method as previously described ...
... SUPPLEMENTARY METHODS: DNA preparation L. drancourtii was grown on BCYE agar (BioMerieux, Marcy l’Etoile, France) in a 5% CO2 atmosphere at 32°C for 3 days. Genomic DNA was extracted using the phenol/chloroform method as previously described ...
Are Viruses Alive
... molecules that can do nothing by themselves. Viruses are right on the border between living and nonliving. There are many non-living things that demonstrate characteristics of living things. Some biologists currently see the virus as a nonliving infectious particle. Other biologists disagree and sug ...
... molecules that can do nothing by themselves. Viruses are right on the border between living and nonliving. There are many non-living things that demonstrate characteristics of living things. Some biologists currently see the virus as a nonliving infectious particle. Other biologists disagree and sug ...
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).