Resolution of the Human Eye Assignment

Resolution of the Human Eye Assignment

Instructions/Descriptions

Resolution of the Human Eye Assignment

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Module Overview

The most numerous inhabitants of our planet are life forms whose size is far smaller than the resolution of the human eye. These microscopic organisms, generically called microbes, play a vital role in the ecology of the earth, and within our own bodies.  In fact, we have a diverse ecosystem of microorganisms within us made up of about 100 trillion organisms in our digestive tract alone.

In terms of cells, microbes out-number our own skin cells, muscle cells, neurons, and blood cells by about 300 to one!  To learn more about what a microbe is, and our own microbiome, follow this link to a recent report from the American Academy of Microbiology, FAQ: Human Microbiome.  You will need to read this to make your posts in your first Discussion.

As we learn more about the microbes in our microbiome, we will concentrate our attention on many of the microbes that are capable of altering our internal environment, making us sick. Infectious disorders are those caused by potentially dangerous microorganisms, called pathogens.

Infectious diseases have been a major threat to human health throughout history.  Infections have killed more humans than all our armed conflicts combined.  During most of our history, infections have been the main cause of death throughout the world.  In spite of our spectacular accomplishments in the diagnosis, prevention, and management of these disorders, infections continue to be a major threat to the individual and collective health.

Even though the mortality from infections has significantly decreased in the past decades, new challenges are emerging which require the clinical skills and sagacity from all primary health providers.  Diseases which were considered to be on the verge of eradication are resurging with more aggressiveness.  As with most health problems, prevention and early diagnosis are the most effective approaches to deal with these challenges.

Let us begin this course by defining some basic terms:

Microbiology is the branch of biology that studies microscopic life forms; their structure, taxonomy (classification), genetics, evolution, ecology, etc.

Clinical Microbiology, the main subject of this course, is a branch of the basic sciences in a health-related curriculum devoted to the study of microbial pathogens and their interaction with humans. Conventionally, Clinical Microbiology also studies viruses (incomplete life forms) and metazoan worms (that are not microscopic).  In summary Clinical Microbiology is the discipline that deals with infectious disorders, in general.

Defense Mechanisms.  The human body uses a series of strategies to prevent the entrance of these potentially dangerous microorganisms; these strategies are collectively called defense mechanisms and include the natural barriers, the process of inflammation, and the immune response.  Were it not for these mechanisms we would be easy prey of the myriad pathogens that surround us.

Pathogen.  Any agent that is capable of causing disease.  As applied to Microbiology, pathogens are the infectious agents.

Microorganisms.  Microscopic life forms.  Viruses (incomplete life forms) are also included in this category.  Infectious agents of importance to humans include viruses, bacteria, fungi, protozoa, and multicellular infectious agents called metazoa (or helminths).  Each of these groups of microorganisms is studied by a specific branch of microbiology:  Virology, Bacteriology, Mycology, and Parasitology.

Host-microbe relations. The mutual interdependence of different life forms is called symbiosis. The interaction among two or more life forms may be beneficial for both, a mutualism, but in most cases one form will live at the expense of another.  This type of symbiosis occurs between an infected human and the infectious agent and is called parasitism.

Types of Infectious Agents

Microbiology was a study of living organisms whose existence was difficult to prove to the general public.  One of the reasons for this was that people could not see the organism; that is, not until the microscope was invented.  Antony van Leeuwenhoek (1674 to 1724) was one of the pioneers in the making of microscopes.  His observations are among the first recorded of bacteria, yeasts, and protozoa.

Edward Jenner is another important pioneer who made progress in developing vaccinations.  Edward Jenner was a country doctor working in England around 1798.  He observed that individuals who were exposed to cowpox, a virus related to smallpox that infects cattle, did not contract the smallpox virus.  He was the first to use an artificial exposure to the cowpox virus to stimulate the human immune response.  Edward Jenner’s early work put to use one of the first vaccinations for smallpox.

Although vaccines were used relatively early in the history of the science of microbiology, it is interesting to note that there were no systematic approaches to identifying the infectious agents until the end of the 19th century.  Another pioneering scientist, Robert Koch (1890), is known for developing postulates that helped establish the agent for a particular disease.  These postulates can be used for humans, animals, and plants for establishing the disease agent. They are still used today even though some complications and modifications must be used for certain obligate parasitic organisms (parasites that must live within a host).

Required Reading

Every Home page has valuable information that you are required to read.  Your first two Case Assignments will focus on reading and accomplishing some research on the Home pages.

Your required reading can be found in your Microbiology etext available at https://www.boundless.com/microbiology/textbooks/boundless-microbiology-textbook/

For your first Case Assignment, IN YOUR OWN WORDS, answer these questions reviewing the content in your Course Overview within the Syllabus:

What will MIC 100 emphasize?

Why is microbiology important to health professionals?

How does death by infection compare to death by warfare?

What issues surrounding antibiotic resistance are named?

What STD epidemics are named?

What websites contain excellent resources for this class?

Now answer these questions regarding the material contained on the Module 1 Home Page:

Complete this sentence:  Infections have killed more humans than…

What is the difference between Microbiology and Clinical Microbiology?

Name the three defense mechanisms listed.

What is a pathogen?

What Host-Microbe relations are described?

Where do you find the assignments for all of your SLPs?

Cells are the smallest unit of life.  All cells are bound by a cell membrane which separates the internal parts of the cell from the external environment.

For the final part of this Case assignment, describe cell theory (hint: there are three components).  Briefly describe the work of two scientists that contributed to this theory.  Be sure to include your references for this answer.

Watch this video about your cells and answer these questions:

http://www.pearsoncustom.com/mct-comprehensive/asset.php?isbn=1269879944&id=8524

What does the video say is the function of:

Cytoskeleton

mictochondria

DNA

Note: The assignment will require you to engage in independent research of cell theory.  You will find information on scientists who contributed to this theory in your required reading for your SLP.  You will also find additional resources on your ebrary bookshelf, such as the book, Cell Biology:  Fundamentals and Applications, a great place to begin your investigation of cell theory and cell biology.

Assignment Expectations

Please include a cover sheet for your Case Assignment.  Use headings to separate each section’s questions, and answer each question using complete sentences.

References:  List the references you used to describe cell theory.  Cite them within your text (Author, date) and provide the full reference information in a References section.

Grammar and Spelling: While no points are deducted, assignments are expected to adhere to standard guidelines of grammar, spelling, punctuation, and sentence syntax.  Points may be deducted if grammar and spelling impact clarity.

The following items will be assessed:

Assignment-Driven Criteria – Did you address each requirement?

Critical Thinking – How well did you synthesize and evaluate the topics addressed?

Scholarly Writing – Is everything explained in complete sentences?

Quality of References and Assignment Organization – Did you organize your paper with headings?

Citing Sources – Did you list your references and cite information where necessary?

Resolution of the Human Eye Assignment

RUBRIC Excellent Quality 95-100%   Introduction 45-41 points The context and relevance of the issue, as well as a clear description of the study aim, are presented. The history of searches is discussed. Literature Support 91-84  points The context and relevance of the issue, as well as a clear description of the study aim, are presented. The history of searches is discussed. Methodology 58-53 points With titles for each slide as well as bulleted sections to group relevant information as required, the content is well-organized. Excellent use of typeface, color, images, effects, and so on to improve readability and presenting content. The minimum length criterion of 10 slides/pages is reached. Average Score 50-85% 40-38 points More depth/information is required for the context and importance, otherwise the study detail will be unclear. There is no search history information supplied. 83-76  points There is a review of important theoretical literature, however there is limited integration of research into problem-related ideas. The review is just partly focused and arranged. There is research that both supports and opposes. A summary of the material given is provided. The conclusion may or may not include a biblical integration. 52-49  points The content is somewhat ordered, but there is no discernible organization. The use of typeface, color, graphics, effects, and so on may sometimes distract from the presenting substance. It is possible that the length criteria will not be reached. Poor Quality 0-45% 37-1 points The context and/or importance are lacking. There is no search history information supplied. 75-1 points There has been an examination of relevant theoretical literature, but still no research concerning problem-related concepts has been synthesized. The review is just somewhat focused and organized. The provided overview of content does not include any supporting or opposing research. The conclusion has no scriptural references. 48-1 points There is no logical or apparent organizational structure. There is no discernible logical sequence. The use of typeface, color, graphics, effects, and so on often detracts from the presenting substance. It is possible that the length criteria will not be reached. Resolution of the Human Eye Assignment Place the Order Here: https://standardwriter.com/orders/ordernow / https://standardwriter.com/

Resolution of the Human Eye Assignment

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