Virus

ALL POSTS FROM CATEGORY


Examples of Viruses and Bacteria
November 8, 2018

Examples of Viruses and Bacteria

Viruses – Pages 475-483 Viruses Not living Don’t grow or develop No respiration Only reproduce within a host (can’t do it alone MUST have a host) Virus multiply through the lytic cycle where the virus attacks the host, injects it nucleic acid into the host, and then spreads or bursts from the host. Virus Structure Structure = Made up of (1) protein coat- capsid…

Which is smaller Bacteria or virus?
November 5, 2018

Which is smaller Bacteria or virus?

(Smithsonian.com) What s the difference between bacteria and viruses? You asked us, what s the difference between bacteria and viruses? You see, bacteria are microscopic. They live just about everywhere, including extreme environments like hot springs and radioactive waste. Now, you can wag a finger at bacteria for things like ear infections and strep throat…

Bacteria and Viruses Similarity
September 30, 2018

Bacteria and Viruses Similarity

The theory of molecular mimicry suggests that common pathogens, mostly viruses and bacteria, touch off autoimmune diseases when a person s immune system commits a colossal blunder, confusing foreign proteins with the body s own proteins. When immune system agents attack the pathogen, they also attack the body they are intended to protect. Pathogens like bacteria…

Bacteria and Viruses
August 26, 2018

Bacteria and Viruses

Gut bacteria can alter cancer risk up or down “Gone are the days of one organism, one disease. We’re really looking at how a whole community of microbes influences disease risk, ” Hullar said. “For example, scientists are looking at how the metabolism of the microbiome — all of the members of the microbial community — influences its host, ” she said. Researchers…

Are Viruses Microbes
August 17, 2018

Are Viruses Microbes

Note that this definition has two issues. There is no universally accepted definition of life. There is no universally accepted size threshold for being called a microbe (to my knowledge). I would go with a threshold of about $10^{-5}$ meters. Is a virus a microbe? A virus IS and IS NOT alive depending on the definition. Note btw, that the definition of what…

Which is smaller a virus or bacteria?
August 2, 2018

Which is smaller a virus or bacteria?

Cells/viruses vary in size mainly according to their function, components & requirements imposed by cell division/virus replication. Bacterial cells are so small because they need a large surface area to cell volume to take in nutrients. Bacteria accumulate nutrients from the environment by diffusion alone, and so adopt certain sizes and shapes so they…

Which is Larger Bacteria or viruses?
July 30, 2018

Which is Larger Bacteria or viruses?

The differences between bacteria and viruses Author – Elaine Pendlebury BA BSc BVetMed DMS MRCVS Senior Veterinary Surgeon (Science & Welfare) PDSA Bacteria (singular is bacterium ) are one celled living organisms with complete genetic ‘codes’ made up of DNA and RNA. A virus is a section of DNA or RNA enclosed by a protein shell. Bacteria are over 100…

Two differences between Bacteria and Viruses
May 31, 2018

Two differences between Bacteria and Viruses

The main difference between these two categories of sexually transmitted diseases (STDs), now more commonly referred to as sexually transmitted infections, or STIs, is what causes them — bacterial STIs are caused by bacteria and viral STIs are caused by viruses. As a result of being caused by different microorganisms, bacterial and viral STIs vary in their treatment…

Are Viruses eukaryotic or prokaryotic cells
May 4, 2018

Are Viruses eukaryotic or prokaryotic cells

Viruses are the simplest form of life but they are not cellular. They rely on entry into cells to reproduce. They enter and use the cell s metabolic machinery to replicate their nucleic acid and to produce their protein coats. All types of cells have their own specific viruses. In general, viruses can only infect a single species, however, there are exceptions…

Similarity and Difference between Bacteria and Viruses
March 2, 2018

Similarity and Difference between Bacteria and Viruses

Bacteria and viruses are two totally different organisms although they do share some commonalities. Some comparisons are is they can both cause diseases and you need special microscopic equipment to see them. The differences far outweigh the differences. One difference between the two is that bacteria contain ribosomes and viruses do not. Another difference is…

Prokaryotes, Eukaryotes, and Viruses
February 15, 2018

Prokaryotes, Eukaryotes, and Viruses

A | A rank–abundance curve showing marine prokaryotes and eukaryotes. The most abundant organisms in the ocean, such as SAR11, are probably K-selected organisms that have slow maximum growth rates but are resistant to viral lysis and grazing. By contrast, less abundant organisms, such as Roseobacter spp. and Vibrio spp., are capable of rapid growth but are highly…

Viruses Bacteria Size
January 13, 2018

Viruses Bacteria Size

The amount and arrangement of the proteins and of viruses determine their size and shape. The nucleic acid and proteins of each class of viruses assemble themselves into a structure called a , or nucleocapsid. Some viruses have more than one layer of protein surrounding the nucleic acid; still others have a membrane (called an envelope), derived from the membrane…

Biggest virus
January 4, 2018

Biggest virus

French researchers have found a new kind of virus so big they initially thought it must be something else. The startling discovery, which upends some long-held assumptions about the nature of viruses — namely, that they are small — led the scientists to give it a fitting name: Pandoravirus. We believe we re opening a Pandora s box — not so much for humanity…

Are Viruses Microorganisms
August 18, 2017

Are Viruses Microorganisms

What are Bacteria? You can run, but you can t hide when it comes to bacteria. They can be found everywhere on earth, from Antarctica to the inside of your intestines! Some are good, aiding digestion and giving us tasty food like cheeses and yogurt. Many are harmful, causing serious diseases; these are called pathogenic bacteria. But what are bacteria? Bacteria…

3 FACTS About Viruses
June 18, 2016

3 FACTS About Viruses

1. Some parasitic wasps lay eggs in caterpillars, where they mature into adult wasps. The wasp eggs contain a virus, encoded in the wasp genome, which prevents the caterpillar from rejecting the eggs. 2. There are a million virus particles per milliliter of seawater – for a global total of 1030 virions! Lined up end to end, they would stretch 200 million light…

Difference Between virus and Bacteria for Kids
November 6, 2016

Difference Between virus and Bacteria for Kids

Infection is generally defined as the invasion of the body by microorganisms causing disease and harm. Infectious diseases are caused by viruses and bacteria, but did you know that these are two different things? Viruses Viruses are microscopic pathogens that infect living cells and tissues. They are the smallest kind of microbe, with the size ranging from around…

Bacteria Fungi and Viruses facts
December 28, 2014

Bacteria Fungi and Viruses facts

You wake up and for a few seconds, you feel okay. But when you sit up, it suddenly all hits you. Your head feels stuffy, your nose is running, and you feel hot all over. These symptoms are all signs that your body is fighting an infection. But how did you get an infection? Infections happen when you get a pathogen inside your body. Pathogens are parasitic , and…

Microorganisms Viruses Information
December 12, 2016

Microorganisms Viruses Information

Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites and can spread between individuals. What is an infectious disease? Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites. Microorganisms that cause disease are collectively called pathogens. Pathogens cause disease either by…

Are Bacteria and Viruses prokaryotes or Eukaryote
June 7, 2017

Are Bacteria and Viruses prokaryotes or Eukaryote

From prokaryotes to eukaryotes Living things have evolved into three large clusters of closely related organisms, called domains : Archaea, Bacteria, and Eukaryota. Archaea and Bacteria are small, relatively simple cells surrounded by a membrane and a cell wall, with a circular strand of DNA containing their genes. They are called prokaryotes. Virtually all…

Virus and Fungi
October 25, 2016

Virus and Fungi

UNIVERSITY PARK, Pa. — A newly discovered virus infecting the fungus that causes white-nose syndrome in bats could help scientists and wildlife agencies track the spread of the disease that is decimating bat populations in the United States, a new study suggests. Regional variations in this virus could provide clues that would help researchers better understand…