1. Compare and contrast, prokaryotic cell, eukaryotic cells and viruses. (30 points) We are unsure weather or not viruses are considered living. They do not grow or develop, obtain or use energy, or respond to the environment. These are all requirements to be living. They don’t contain cells and are not typically considered cells. Their nucleic acid is either DNA or RNA. They have no nucleus, ribosomes or mitochondria, no binary fission or mitosis/meiosis. Their outer surface is protein capsule. Viruses require a host organism in order to live and reproduce. Unlike viruses both prokaryotic and eukaryotic cells are both living. Eukaryotic cells are what we are made up of. Animals are also made up of these cells. They are made up of membrane enclosed organelles including a true nucleus containing a nuclear membrane and nuclei. These cells can be either single-celled or multi-celled. These cells contain flagella that is complex and consist of multiple microtubules. In Eukaryotic cells the polysaccharide covering is only present in some of the cells that do not contain a cell wall, cell wall not always present when it is it is chemically simple. The plasma membrane in the cell contains sterols and
In 2008 there was a SARS (severe acute respiratory syndrome) epidemic in Hong Kong, it affected around 800 people. This was an epidemic because it was confined to mostly one region. A pandemic is a disease out break that affects a large proportion of the population over a wide geographic area. The Influenza virus also know as the Spanish-Flu started in Kansas in 1918 and within a matter of a couple months the disease had spread from North America to Europe, Asia, Africa, South America, and then back again. Since the disease travelled to multiple countries all over the world it is considered to be a pandemic. This pandemic lasted from 1918-1919 and left about twenty million dead
There are many different cells that do many different things. But all of these cells fall into two categories: prokaryotic and eukaryotic cells. Eukaryotic cells contain a nucleus and are larger in size than prokaryotic cells. Prokaryotic cells do not contain a nucleus, are smaller and simpler than eukaryotic cells. Two of their similarities are they both have DNA as their genetic material and are covered by a cell membrane. Two main differences between these two cells are age and structure. It is believed that prokaryotic cells were the first forms on earth. They are considered primitive and originated approximately 3.5 billion years ago. Eukaryotic cells have only been around for about a billion years. There is strong evidence that suggests eukaryotic cells may be evolved from groups of prokaryotic cells that became interdependent on each other (Phenotypic analysis. (n.d.).
The influenza or flu pandemic of 1918 to 1919, the deadliest in modern history, infected an estimated 500 million people worldwide–about one-third of the planet’s population at the time–and estimates place the number of victims anywhere from 25 to 100 million. More than 25 percent of the U.S. population became sick, and some 675,000 Americans died during the pandemic. The 1918 flu was first observed in Europe, the U.S. and parts of Asia before swiftly spreading around the world. Surprisingly, many flu victims were young, otherwise healthy adults. At the time, there were no effective drugs or vaccines to treat this killer flu strain or prevent its spread. In the U.S., citizens were ordered to wear masks, and schools, theaters and other public
Viruses are the simplest and tiniest of microbes, and are made up of proteins, nucleic acid, and lipids. The nucleic acids contain the genetic code that helps them grow and reproduce, but only once they find their way into a living organism. Viruses themselves are not considered living organisms because they don’t have cells, they don’t metabolize nutrients, produce and excrete wastes, and they can’t move around on their own. The remains of the nucleic acid then forms a covering, called the capsid. Once the capsid gets removed, viruses use the building materials of th...
Pandemics, once started, are expected to spread worldwide. They cannot be stopped from spreading, once they outbreak, they continuously spread. The Black Death was a disease that spread throughout the Mediterranean and Europe. There were approximately 25 million deaths in Europe alone. The Black Death was caused by the bacterium called Yersinia Pestis during the 13th century. The Black Death, also known as the Bubonic Plague was caused by a single contamination of one person. The Black Death was caused by a single bacterium, overcrowding in areas like Europe, which effected a huge part of the population by simply killing it off.
A Prokaryote is a single cell organisms that does not have a nucleus, which is divided into two major groups: archaeabacteria and bacteria. Prokaryotes are usually found in three common structures, such as bacillus is rod shaped, crocus is spherical-shaped, and spirillum is long shape. Although there are prokaryotes that are responsible for diseases there are also good types of bacteria that we need. Prokaryotes provide essential services to biological systems for instance food and agriculture.
A pandemic is defined as a disease that has the ability to outbreak and spread globally. A pandemic is determined by how a particular disease spreads rather than how many lives it has claimed. A future pandemic can easily occur if and when a mutation of a new influenza A virus emerges. A pandemic of this type is easily possible to spread quickly and globally due to that when a new strand of the virus emerges, it will be highly unlikely that the human population will have a built up immunity to it.
...influenza pandemic in one way or another; the use of quarantines were extremely prevalent among them. Also, the pandemic is directly responsible for the creation of many health organizations across the globe. The organizations help track and research illnesses across the globe. The CDC (Centers for Disease Control and Prevention) for example, strive to prevent epidemics and pandemics. They also provide a governing body with directives to follow in case an outbreak does occur, and if one shall occur the efforts of organizations across the globe will be crucial for its containment. It is amazing that with modern medicine and proper organization that influenza still manages to make its appearance across the globe annually.
...y do not have energy metabolism, they do not grow or produce waste products, and they don’t respond to stimuli. Although they replicate and produce more of one another, viruses can’t reproduce independently without invading a living cell. Because viruses don’t fulfill all of the characteristics of life, they are not living organisms.
A pandemic is an outbreak of an infectious disease that spreads through human populations across a large region, whether that be multiple continents or worldwide. In order to be considered a pandemic, a disease must cross international boundaries and be contagious or infectious. Pandemics are usually caused by a new virus strain that humans have either very little or no immunity against. This contagious virus spreads easily from person to person, through direct contact or coughing and sneezing. A serious illness is caused worldwide from the virus, wiping out entire populations. Some of the deadliest pandemics include the Black Death, the Spanish influenza, and the second cholera pandemic.
The influenza pandemic of 1918-1919 killed more people than the Great War, known today as World War I (WWI), at somewhere between twenty and forty million people. (1) Influenza is a virus that appeared in 1918 and caused a pandemic. It made an enormous impact that is still significant to the world today. It has pushed scientists to make advancements in the medicine and vaccination industry that continue to grow each and every day. Influenza may be a horrible thing, but without it we wouldn’t be where we are today.
The human population has a high susceptibility to the contraction of new diseases and outbreaks of these diseases are of high risk. Diseases in recent times that have broken out into the human population are the H7N9 flu strain and SARS. Despite the risk, outbreaks like H7N9 and SARS have been controlled due to epidemiology and other disease control methods. Outbreaks of disease are not uncommon to the human population as they move to new areas around the world with foreign diseases that the native residents would have developed a resistance to.
At the time, the Influenza of 1918 was called the Spanish Flu. Spain was not involved in the expanding great war (i.e., World War I) and therefore was not censoring it's press. However, Germany, Britain, and America were censoring their newspapers for anything that would lower morale. Therefore, Spain was the first country to publish accounts of the pandemic (Barry 171 and Furman 326), even though the pandemic most likely started in either France or the United States. It was also unique in it's deadliness; it “killed more people in a year than the Black Death of the Middle Ages killed in a century” (Barry 5). In the United States, the experience during the pandemic varied from location to location. Some areas were better off whereas some were hit horribly by the disease, such as Philadelphia. It also came as a shock to many, though some predicted it's coming; few thought it would strike with the speed and lethality that it did. Though the inherent qualities of the flu enabled its devastation of the country, the response to the flu was in part responsible as well. The response to the pandemic was reasonable, given the dire situation, but not sufficient enough to prevent unnecessary death and hardship, especially in Philadelphia.
This disease was first diagnosed in 1918 and it was referred to as the “Spanish Flu” or “La Grippe.” To this day it is thought to of been the same strain as the swine influenza however it is still unclear. For this particular outbreak it’s not exactly know whether humans contracted the virus from pigs or vice versa. Either way between 20-40 million people died from it. The first confirmed case of H1N1 in the U.S. was diagnosed on April 15th, 2009. The CDC quickly began developing a vaccine due to the fact that it was declared a public health emergency about a week later by the government. It tu...
Another difference between the two cells is that, in prokaryotic cells there is cytoplasmic movement; however there is no cytoplasmic movement in eukaryotic cells.
The Cell, the fundamental structural unit of all living organisms. Some cells are complete organisms, such as the unicellular bacteria and protozoa, others, such as nerve, liver, and muscle cells, are specialized components of multicellular organisms. In another words, without cells we wouldn’t be able to live or function correctly. There are Animal Cells and Plant Cells. In Biology class the other day we studied the Animal Cell. We were split into groups of our own and we each picked a different animal cell slide to observe. My group chose the slide,'; Smeared Frog Blood ';.