How To Virus Module: Biochemical Processes?
Title: Virus Module: Biochemical Processes______
All viruses are pathogens. Some viruses are deadly, for example, HIV and Ebola virus. Unlike bacteria, fungi and protists, viruses do not fit into the framework of cellular organization that is the hallmark of organisms. Bacteria, fungi and protists are cells but not virus. Viruses have unique structural and functional properties and cannot reproduce unless they are inside the cell. In fact, they can neither generate energy nor make proteins.
Virus are extremely small particles comprise mainly of protein and nucleic acid. The range of virions in size is from 10 to 400nm in diameter. Most viruses are too small to be visible in the light microscope and must be viewed with electron microscope. …show more content…
Firstly, in contrast to all cells, the virions of all but a single type of virus contain only one type of nucleic acid. They might have DNA, or only RNA. For example, rhinoviruses that causes common cold has only single stranded RNA while virus that causes chickenpox has only double stranded DNA. Not only that, the nucleic acid may exist as one large molecule or it may be divided into a set of smaller molecules. For instance, the nucleic acid in the viruses that causes influenza consists of eight separate segments of single-stranded RNA. Besides that, the nucleic acid may be linear or by forming a closed circle. For example, the DNA of chicken pox virus is linear while the DNA of the viruses that causes warts is circulized. Furthermore, viral nucleic acids range in molecular weight from less than 2million to more than 200million. The smallest virus is estimated to have fewer than five genes, whereas the largest possess several hundred. Lastly, the nucleic acid of some viruses is packed into the capsid similar to a box, while for others, the nucleic acid is assembled together with the capsomeres and is integrated into the structure of the …show more content…
Copies of viral nucleic acid will be incorporated into new virions. Replication of viral nucleic is a complex process involving not only the replication of the viral nucleic acid, but also the synthesis of certain viral proteins that are needed to carry out replication. It also involves shutting down the host cell’s biosynthesis from cellular to viral genes. The host cell’s machinery will be overtaken and due to that, the synthesis of viral components must rely on the pre-existing intracellular stores of materials. The viral nucleic acids are formed from the pool of nucleotides that are found from the breakdown of cellular nucleic
All viruses are pathogens. Some viruses are deadly, for example, HIV and Ebola virus. Unlike bacteria, fungi and protists, viruses do not fit into the framework of cellular organization that is the hallmark of organisms. Bacteria, fungi and protists are cells but not virus. Viruses have unique structural and functional properties and cannot reproduce unless they are inside the cell. In fact, they can neither generate energy nor make proteins.
Virus are extremely small particles comprise mainly of protein and nucleic acid. The range of virions in size is from 10 to 400nm in diameter. Most viruses are too small to be visible in the light microscope and must be viewed with electron microscope. …show more content…
Firstly, in contrast to all cells, the virions of all but a single type of virus contain only one type of nucleic acid. They might have DNA, or only RNA. For example, rhinoviruses that causes common cold has only single stranded RNA while virus that causes chickenpox has only double stranded DNA. Not only that, the nucleic acid may exist as one large molecule or it may be divided into a set of smaller molecules. For instance, the nucleic acid in the viruses that causes influenza consists of eight separate segments of single-stranded RNA. Besides that, the nucleic acid may be linear or by forming a closed circle. For example, the DNA of chicken pox virus is linear while the DNA of the viruses that causes warts is circulized. Furthermore, viral nucleic acids range in molecular weight from less than 2million to more than 200million. The smallest virus is estimated to have fewer than five genes, whereas the largest possess several hundred. Lastly, the nucleic acid of some viruses is packed into the capsid similar to a box, while for others, the nucleic acid is assembled together with the capsomeres and is integrated into the structure of the …show more content…
Copies of viral nucleic acid will be incorporated into new virions. Replication of viral nucleic is a complex process involving not only the replication of the viral nucleic acid, but also the synthesis of certain viral proteins that are needed to carry out replication. It also involves shutting down the host cell’s biosynthesis from cellular to viral genes. The host cell’s machinery will be overtaken and due to that, the synthesis of viral components must rely on the pre-existing intracellular stores of materials. The viral nucleic acids are formed from the pool of nucleotides that are found from the breakdown of cellular nucleic