PowerPoint Presentation - Ch14 Virions, Prions, and
... • Attachment proteins or spikes in enveloped viruses Distinct from bacteriophages • Segmented viruses (contain more than one RNA ...
... • Attachment proteins or spikes in enveloped viruses Distinct from bacteriophages • Segmented viruses (contain more than one RNA ...
Virus and Bacteria Worksheet
... Compare and contrast viruses and bacteria. Place the following words/phrases where they belong. Curable(not), Vaccines(no), Antibiotics useful(no), Is(is not) an organism, Can(can’t) be spread from person to person, (not) found in humans and animals, Deadly(not), Living(not), contains DNA(doesn’t) V ...
... Compare and contrast viruses and bacteria. Place the following words/phrases where they belong. Curable(not), Vaccines(no), Antibiotics useful(no), Is(is not) an organism, Can(can’t) be spread from person to person, (not) found in humans and animals, Deadly(not), Living(not), contains DNA(doesn’t) V ...
Fast Facts About Pathogens
... Hydrophilic – do not have a lipid envelope. These viruses are very difficult to inactivate. Examples: Poliovirus, Echovirus, and Hepatitis A. High concentrations of ethanol and strong concentrations of chlorine are among the few germicides that will inactivate these viruses. Some quat formulations a ...
... Hydrophilic – do not have a lipid envelope. These viruses are very difficult to inactivate. Examples: Poliovirus, Echovirus, and Hepatitis A. High concentrations of ethanol and strong concentrations of chlorine are among the few germicides that will inactivate these viruses. Some quat formulations a ...
C) Viral Life Cycles - Mr. Lesiuk
... - Another way in which viruses affect a cell is through a Lysogenic Cycle. The virus does not reproduce and lyse the host cell (as was the case in the lytic cycle) – at least not right away. - Viruses that do not cause lysis are non-virulent, at this time, instead of being called a virulent phage th ...
... - Another way in which viruses affect a cell is through a Lysogenic Cycle. The virus does not reproduce and lyse the host cell (as was the case in the lytic cycle) – at least not right away. - Viruses that do not cause lysis are non-virulent, at this time, instead of being called a virulent phage th ...
Viruses: Bacterial and Animal
... • Disease may be present or absent • Best example is Hepatitis Type B virus – Carriers produce virus detected in blood, saliva, and semen – Unique replication of dsDNA ...
... • Disease may be present or absent • Best example is Hepatitis Type B virus – Carriers produce virus detected in blood, saliva, and semen – Unique replication of dsDNA ...
Viruses
... • Cells won’t knowingly let viruses in, so the virus tricks the cell into letting it in by using receptors that are meant to let in something else. (Nutrients, for example) ...
... • Cells won’t knowingly let viruses in, so the virus tricks the cell into letting it in by using receptors that are meant to let in something else. (Nutrients, for example) ...
Section 19–2 Viruses
... 7. What occurs when viruses get inside of cells? Once inside, the viral genes are expressed. The cell transcribes and translates the viral genetic information into viral capsid proteins. Sometimes the program may cause the cell to make copies of the virus, and in the process the host cell is destroy ...
... 7. What occurs when viruses get inside of cells? Once inside, the viral genes are expressed. The cell transcribes and translates the viral genetic information into viral capsid proteins. Sometimes the program may cause the cell to make copies of the virus, and in the process the host cell is destroy ...
viruses and bacteria
... 1. List and explain the 5 steps of virus replication A. B. C. D. E. 2. Where are viruses found? 3. How many viruses can be in a single drop of blood? (Hint 109) 4. What is one of the most deadly viruses ever identified? Explain what it does to the body. ...
... 1. List and explain the 5 steps of virus replication A. B. C. D. E. 2. Where are viruses found? 3. How many viruses can be in a single drop of blood? (Hint 109) 4. What is one of the most deadly viruses ever identified? Explain what it does to the body. ...
Viruses Virus • Microscopic particle that invades and
... Microscopic particle that invades and kills a cell Smaller than bacteria Change rapidly Cannot perform all life processes Can only reproduce in a host cell o Host – organism invaded by a parasite ...
... Microscopic particle that invades and kills a cell Smaller than bacteria Change rapidly Cannot perform all life processes Can only reproduce in a host cell o Host – organism invaded by a parasite ...
Virus Replication PPT
... makes copies, causing lysis of the cell Lysogenic Infection – a virus “hides” its DNA inside a host cell and lies dormant › Viral DNA is copied each time the cell divides ...
... makes copies, causing lysis of the cell Lysogenic Infection – a virus “hides” its DNA inside a host cell and lies dormant › Viral DNA is copied each time the cell divides ...
Kingdom: Viruses
... The Baltimore Classification System Classifies viruses into seven groups by comparing their nucleic acid (DNA or RNA), strandedness (single-stranded or double-stranded), and method of replication. Group I: double-stranded DNA viruses Group II: single-stranded DNA viruses Group III: double-s ...
... The Baltimore Classification System Classifies viruses into seven groups by comparing their nucleic acid (DNA or RNA), strandedness (single-stranded or double-stranded), and method of replication. Group I: double-stranded DNA viruses Group II: single-stranded DNA viruses Group III: double-s ...
#23 Viruses made by: marah marahleh corrected by: Amer Al
... Viruses can't be grown on synthetic media it needs tissue media because viruses need cells to use their metabolic machinery for its own replication and therefore propagation unlike fungi which can be grown on dextrose media ( ex: candida can be grown on CHROM agar ). ...
... Viruses can't be grown on synthetic media it needs tissue media because viruses need cells to use their metabolic machinery for its own replication and therefore propagation unlike fungi which can be grown on dextrose media ( ex: candida can be grown on CHROM agar ). ...
Virus/Bacteria Review Questions
... 8. What are bacteriophages? ____________________________________________________ 9. Circle the letter of each sentence that is true about a lysogenic infection: a. The virus lyses the host cell immediately. b. The virus embeds its DNA into the host cell’s DNA. c. The virus’s DNA is replicated along ...
... 8. What are bacteriophages? ____________________________________________________ 9. Circle the letter of each sentence that is true about a lysogenic infection: a. The virus lyses the host cell immediately. b. The virus embeds its DNA into the host cell’s DNA. c. The virus’s DNA is replicated along ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 8. Sex Pili participate in the transfer of DNA from one bacterium to another. 9. Rubella virus grows well in chorioallantoic membrane of the embryonated eggs. 10. Animal virus has receptor sites that attach to the attachment sites on the host cell surface. III Complete the following: (5 x 1 = 5) 11. ...
... 8. Sex Pili participate in the transfer of DNA from one bacterium to another. 9. Rubella virus grows well in chorioallantoic membrane of the embryonated eggs. 10. Animal virus has receptor sites that attach to the attachment sites on the host cell surface. III Complete the following: (5 x 1 = 5) 11. ...
Viruses - hudson.k12.oh.us
... • The Human Immunodeficiency Virus (HIV) • Can lead to AIDS (acquired immunodeficiency syndrome) ...
... • The Human Immunodeficiency Virus (HIV) • Can lead to AIDS (acquired immunodeficiency syndrome) ...
Viruses - Hudson City School District
... • The Human Immunodeficiency Virus (HIV) • Can lead to AIDS (acquired immunodeficiency syndrome) ...
... • The Human Immunodeficiency Virus (HIV) • Can lead to AIDS (acquired immunodeficiency syndrome) ...
Viruses/Bacteria/Protists/Fungi - Butler Biology
... accomplish life functions: 1. Adaptations for movement include a whip-like tail called a flagellum, tiny hair-like projections called cilia, or extensions of the cell membrane called pseudopodia. 2. An adaptation for water balance is the contractile vacuole. This vacuole pumps excess water out of th ...
... accomplish life functions: 1. Adaptations for movement include a whip-like tail called a flagellum, tiny hair-like projections called cilia, or extensions of the cell membrane called pseudopodia. 2. An adaptation for water balance is the contractile vacuole. This vacuole pumps excess water out of th ...
Viruses Are Viruses Living Things? ______ Why? Viruses, can all
... eventually the viral DNA can be triggered to separate from the host cell DNA and pick up with the lytic cycle at step 2. ...
... eventually the viral DNA can be triggered to separate from the host cell DNA and pick up with the lytic cycle at step 2. ...
Virus Webquest - Northwest ISD Moodle
... they ________________, animals, plants, or bacteria. 5. Viruses are further classified into families and genera based on three structural considerations: 1) the type and size of their ___________________________, 2) the size and shape of the __________________________, 3) whether they have a lipid _ ...
... they ________________, animals, plants, or bacteria. 5. Viruses are further classified into families and genera based on three structural considerations: 1) the type and size of their ___________________________, 2) the size and shape of the __________________________, 3) whether they have a lipid _ ...
virus reproduced
... 2. A tomato plant in a greenhouse was found to be infected with tobacco mosaic virus. A few weeks later, nearby plants were also found to be infected with the virus. Which of the following best describes how the virus reproduced? A. The virus made its own spores. B. The virus produced seeds in the ...
... 2. A tomato plant in a greenhouse was found to be infected with tobacco mosaic virus. A few weeks later, nearby plants were also found to be infected with the virus. Which of the following best describes how the virus reproduced? A. The virus made its own spores. B. The virus produced seeds in the ...
Prokaryote vs. Eukaryote
... (Virus is always in a person, never goes away so always susceptible to cold sores) ...
... (Virus is always in a person, never goes away so always susceptible to cold sores) ...
Introduction to viruses
A virus is a biological agent that reproduces inside the cells of living hosts. When infected by a virus, a host cell is forced to produce many thousands of identical copies of the original virus, at an extraordinary rate. Unlike most living things, viruses do not have cells that divide; new viruses are assembled in the infected host cell. But unlike still simpler infectious agents, viruses contain genes, which gives them the ability to mutate and evolve. Over 5,000 species of viruses have been discovered.The origins of viruses are unclear: some may have evolved from plasmids—pieces of DNA that can move between cells—while others may have evolved from bacteria. A virus consists of two or three parts: genes, made from either DNA or RNA, long molecules that carry genetic information; a protein coat that protects the genes; and in some viruses, an envelope of fat that surrounds and protects them when they are not contained within a host cell. Viruses vary in shape from the simple helical and icosahedral to more complex structures. Viruses range in size from 20 to 300 nanometres; it would take 30,000 to 750,000 of them, side by side, to stretch to 1 centimetre (0.39 in).Viruses spread in many ways. Just as many viruses are very specific as to which host species or tissue they attack, each species of virus relies on a particular method for propagation. Plant viruses are often spread from plant to plant by insects and other organisms, known as vectors. Some viruses of animals, including humans, are spread by exposure to infected bodily fluids. Viruses such as influenza are spread through the air by droplets of moisture when people cough or sneeze. Viruses such as norovirus are transmitted by the faecal–oral route, which involves the contamination of hands, food and water. Rotavirus is often spread by direct contact with infected children. The human immunodeficiency virus, HIV, is transmitted by bodily fluids transferred during sex. Others, such as the Dengue virus, are spread by blood-sucking insects.Viral infections can cause disease in humans, animals and even plants. However, they are usually eliminated by the immune system, conferring lifetime immunity to the host for that virus. Antibiotics have no effect on viruses, but antiviral drugs have been developed to treat life-threatening infections. Vaccines that produce lifelong immunity can prevent some viral infections.