PPT-19 Viruses What do you think of when you hear the word “virus?”

Computer Brad Flu Sydney HPV Corley No Janna Zombies Lauren Ebola to kno de wae Brad Amino acids . DNA Enveloped . Viruses. I. Objectives. In this lecture you will learn about properties, pathogenesis, clinical picture and diagnosis of: . Herpesviruses. . (HHVs 1 to 8). Poxviruses. Smallpox Virus. Viruses Are Not Cells!. There are several structural and functional differences between cells and viruses. The structural differences include:. No nucleus. No cell membrane. No organelles. The functional differences include:. (The DNA Virus). Prepared by:. Miss . Norzawani. . Jaffar. Bsc. (. Hons. ) Biomedical Sciences, UKM. Lecture 17. Learning Outcomes. At the end of this learning session, student must be able to;. Classify the viruses. EQ: Why are viruses considered to be non-
living?. Characteristics:. *Nonliving particles made of . nucleic acid. and a . protein coat . enlosed in a . capsid. shell... *In order to reproduce, all viruses must have a . 8.1 What Is a Virus? Plus 9.1, 9.2 (parts). 8.2 Structure of the Virion. 8.3 Overview of the Virus Life Cycle. 8.8 . Temperate Bacteriophages and . Lysogeny. 8.10, 9.6, 9.7 Overview of Animal Viruses. -It’s not a plant or an animal.. -It’s not a fungi, protist, or bacteria.. WHAT IS A VIRUS?. A virus is an . infectious. agent made up of . nucleic. acid (. DNA. or . RNA. ) wrapped in a . protein. © 2017 Pearson Education, Inc.. Introduction. A . virus . is an obligate, intracellular parasite . Viruses enter a . host. . cell. and use the host’. s biosynthetic machinery to reproduce and synthesize its proteins. -It’s not a plant or an animal.. -It’s not a fungi, protist, or bacteria.. WHAT IS A VIRUS?. A virus is an . infectious. agent made up of . nucleic. acid (. DNA. or . RNA. ) wrapped in a . protein. DNA . is a molecule in your cells’ nuclei that can be . used as instructions by your cells . to make new cells, and pigments for your hair and skin.. What is DNA again?. The DNA instructions are really a pattern of 4 different chemicals read as a code by the cell’s nucleus.. -It’s not a plant or an animal.. -It’s not a fungi, protist, or bacteria.. WHAT IS A VIRUS?. A virus is an . infectious. agent made up of . nucleic. acid (. DNA. or . RNA. ) wrapped in a . protein. an increase in the number of cases of a disease above what is normally expected . science of protecting and improving the health of people and their communities. a preparation that provides a trigger to help the immune system build immunity. (Assistant Professor). College of Fisheries, . Kishjanganj. BASU, Patna. Characteristics of viruses. Viruses may be regarded as . exceptionally complex aggregations . of . nonliving chemicals . or . exceptionally simple living microbes. As a group discuss for 1 minute. Be able to defend your answer for the class!. Are . VIRUSES. alive?. Growth and Development. Reproduce. Change Over Time. Obtain and Use Energy. Maintain Homeostasis. Viruses are very small – smaller than the smallest cell.. They are usually surrounded by a capsid of proteins.. For replication, viruses rely on their host cells . ie. ., the cells they infect.. Most viruses exhibit a limited host range- they typically infect only specific types of cells of one host species..