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Free research papers and essays on topics related to: cell

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  • Anatomy Of A Muscle Cell - 1,017 words
    Anatomy Of A Muscle Cell John Centore1 Anatomy and Physiology Dr. Jain Anatomy of Muscle Cells There are three types of muscle tissue in the human body. These muscle tissues are skeletal muscles, smooth muscles and cardiac muscles. Each of these muscle tissues has it very own anatomical makeup, which vary from muscle to muscle. The muscle cells in a muscle are referred to as muscle fibers, these fibers are skeletal muscle fibers, smooth muscle fibers and cardiac muscle fibers. The anatomy of a skeletal muscle fiber is formed during embryonic development. Skeletal muscle fibers arise from a hundred or more small mesodermal cells called myoblasts. The mature skeletal muscle fiber has a hundred ...
    Related: anatomy, anatomy physiology, cell, cell division, muscle, muscle growth
  • Cancer From Cell Phones - 855 words
    Cancer From Cell Phones Do cellular phones cause cancer? As I walk through the doors at Circuit City I look around at all the customers shopping throughout the store and wonder which one will ask the question first. I sell cellular phones, and many customers are concerned with getting cancer from the phones. In recent years, many scientists have conducted tests, which show that cell phones can cause cancer over a period of time. Many shows on television have talked about the tests and show the tests that were preformed to determine which ones can cause cancer. Many of the popular phones are proven to cause cancer. Because of this study many customers are concerned with the use of these phone ...
    Related: brain cancer, cancer, cell, cell phone, cell phones, cellular phone
  • Cell Communication - 1,237 words
    Cell Communication Physiology In the human body there are many parts that work together in order for everything to function properly, but even these parts need to have a way to know what to do. This is where cell communication comes into play. Tiny cells in the body contain astounding networks that allow for this communication. Scientists are discovering why these messages from cell to cell are so efficient, and this could lead to new therapies for diseases. In the past 15 years, scientists have discovered more of the code the cells use for their internal communications. Signal transmission begins when a messenger "docks" temporarily with a specific receptor on a recipient cell. This recepto ...
    Related: cell, communication system, human cells, building blocks, module
  • Cell Parts - 328 words
    Cell Parts Nucleus Cell Wall Cell Membrane Ribosome Mitochondria Vacuoles Nucleolus Endoplasmic Reticulm Lysosomes 5. Have the "cell membrane people" cut the large piece of plastic wrap in half and place each piece on the table. 6. Have the "cytoplasm people" form 2 balls using the plain play-doh or clay. Lay 1 ball on each piece of plastic wrap and press each into a "pancake" about 6". 7. Instruct them to designate one pancake, "animal cell" and the other "plant cell". 8. Have members of each group find the supplies they need to represent their cell structures, cut, form, fold, paste, etc. until their structure is simulated. Then place the finished structures in a pile on the center of the ...
    Related: cell, cell structure, class period, coloring, nucleus
  • Cell Permeability - 1,268 words
    Cell Permeability Cell membrane permeability refer to the crossing of the cell membrane by substances. Substances move into or out of the cell by crossing the cell membrane. Some substances cross the membrane very easily and the membrane is said to be very permeable to these substances; others move across with difficulty, while others are excluded completely. There are various process that a substance may used to cross the cell membrane, such as diffusion, facilitalated diffision, or a substance may inter a cell by a mean of a cell membrane carrier, which requires some kind of energy, such as ATP. In any of the process that a substance may used to cross the cell membrane it has to be determi ...
    Related: cell, blood cells, dependent, calcium
  • Cell Phone Safety - 815 words
    Cell Phone Safety The use of cellular phones has spread like wild fire in the last ten years. It has become a part of everyday life for many American citizens, and a good number of people depend on them to carry out daily operations. Unfortunately, many of these daily operations occur while the individual is driving. As a result, many accidents have taken place in the last ten years due to the use of cellular phones while on the road. This leads me to believe that if people cant concentrate on the road while talking on a cell phone they shouldnt talk at all while driving. Rather than restricting access, the goal should be to provide in-vehicle information systems and safer means to using you ...
    Related: cell, cell phone, cell phones, cellular phone, phone
  • Cell Phones - 1,261 words
    Cell Phones The new millennium has finally arrived and technological advancements are still being made at a rate faster than is often conceivable. Among the various inventions and discoveries of the modern era is one that has already become a mediocre item to the average individual - the cell phone. As one takes a stroll down the street, grabs a bite to eat, or simply takes a single step into the outside world, one may realize that nearly each and every individual is affected by the cell phone phenomenon. Cell phones are a means by which individuals are able to communicate with others that are not present. However, the fascinating characteristic of the cell phone is that it allows the person ...
    Related: cell, cell phone, cell phones, general public, shopping malls
  • Cell Phones - 1,252 words
    ... are actually taking place, and to thus allow others to feel included at all times. This is clear as Jack, while sick in bed, was unable to attend a basketball game that he previously bought tickets for. Nevertheless, Bob still attended the game, and took his cell phone with him with the intention of calling Jack during the sporting event. Although the television in Jack's home was able to communicate to him every single move and action taken by each player on both teams, Jack nevertheless felt disappointed and unconnected to the game. When Jack suddenly received a phone call from Bob during the last quarter of the game when the favoring team was down by one, Jack became anxious and exci ...
    Related: cell, cell phone, cell phones, verbal communication, mass communication
  • Cell Phones - 1,620 words
    Cell Phones What Causes Cell Phone Radiation and How Does it Effect Your Body? What is so popular with young teenagers today? Cell phones. Walking around on campus to walking around at the mall with your cell phone may seem fashionable and trendy, but did you now that it might be causing you to get a cancer? Ninety percent of cell phone holders do not realize it and it should be something everyone should be aware of. It may seem a bit unusually how a cell phone can cause a child or an adult to get cancer, but it is true. New evidence is growing fast about health risks from mobile phones electromagnetic radiation. These devices can be used to make telephone calls from almost anywhere. Sympto ...
    Related: cell, cell phone, cell phones, mobile phone, electromagnetic radiation
  • Cell Structure And Function - 566 words
    Cell Structure And Function CELL STRUCTURE AND FUNCTION All living things are made of the same basic building blocks, cells. A human is made of 65 trillion cells. Cells are everywhere, on you skin, in your blood, and even on your tongue. In fact, your blood is clear but red blood cells are what make your blood red. Most living things are made up of many cells but some are made of only one cell, like amebas, paramecium, fungi, protists, monerans, and bacteria. There are two basic types of cells, animal cells and plant cells. They have some common parts found in both and other parts that are unique to each. A cell membrane is found in both plant and animal cells. It is the structure that surro ...
    Related: cell, cell structure, building blocks, different ways, thick
  • Cloning Became To Be, As A Finn Dorset Ewe Would Provide The Mammary Cell For The Cloning Process Secondly The Mammary Cell C - 680 words
    Cloning became to be, as a Finn Dorset ewe would provide the mammary cell for the cloning process. Secondly the mammary cell containing all copies of every gene that is needed to make the sheep. Although the only genes for proteins that are required by mammary cells are active. Thirdly the cells grow and then they are divided, by making carbon copies of themselves. But if the cells are starved of there nutrients, they will soon enter a quiescent state. When it gets to this point all of their genes are most likely already activated. In the fourth stage there is an egg from a Scottish Blackface ewe that provides the egg. Then in the fifth stage the egg or oocyte, is being kept alive in a labor ...
    Related: cell, cloning, finn, human cloning, identical twins
  • I Am Your Usual Plant Cell There Are Trillions Of My Kind On All Plants, Grass, And Trees My Breed Ranges From Ten To A Hundr - 645 words
    I am your usual plant cell. There are trillions of my kind on all plants, grass, and trees. My breed ranges from ten to a hundred micrometers. I am approximately twenty micrometers since I dwell in grass. My organelles stretch out to one to ten micrometers. If you are asking what I really do and how I live, I am going to answer them in this paper. First off, any cells requires a structure, metabolism, energy, nutrients, waste, and communication. I am more complex than most other cells. Bacteria cell only have a cell wall, cell membrane, and a cytoplasm. Animal cells do not have cell wall, vacuole and cytoplasts. I am a very extraordinary cell indeed. Photosynthesis is the process which I dev ...
    Related: breed, cell, plant, trees, usual
  • In The Early Stages Of The Twentieth Century, Little Was Known About Cell Membranes Until The Early 1950s, The Biological Cel - 414 words
    In the early stages of the twentieth century, little was known about cell membranes. Until the early 1950s, the biological cell membrane was rarely mentioned in scientific literature. It was recognised that something was probably there, but hardly anything about it was known. Considering the lack of technical equipment available a century ago, scientists such as Charles Overton and Edwin Gorter were not only exploring new territory in looking at the properties of cell membranes, but laying the way for future cell biologists. Scientists had to wait another fifty years for the discovery of the electron microscope, let alone seventy years for the advent of freeze fracturing techniques. Nageli a ...
    Related: biological, cell, early stages, twentieth, twentieth century
  • In The Human Body, Each Cell Contains 23 Pairs Of Chromosomes, One Of Each Pair Inherited Through The Egg From The Mother, An - 1,072 words
    In the human body, each cell contains 23 pairs of chromosomes, one of each pair inherited through the egg from the mother, and the other inherited through the sperm of the father. Of these chromosomes, those that determine sex are X and Y. Females have XX and males have XY. In addition to the information on sex, 'the X chromosomes carry determinants for a number of other features of the body including the levels of factor VIII and factor IX.'1 If the genetic information determining the factor VIII and IX level is defective, haemophilia results. When this happens, the protein factors needed for normal blood clotting are effected. In males, the single X chromosome that is effected cannot compe ...
    Related: cell, human body, pair, early stages, more effective
  • Mitosis Cell Lab - 1,293 words
    Mitosis Cell Lab I Mitosis Cell Lab II. Introduction Life exists almost every where on this planet and if we are to attempt to comprehend what life is in all of its magnificence we must look at its simplest forms. Even a cell, the smallest form of life known is extremely complex. All life begins as a single cell. I can not begin to understand the depth of what it takes for one cell to multiply and change until we become conscious of ourselves. There are two types of cell division, Meiosis and Mitosis. Meiosis is where a cell splits and becomes four different cells. Mitosis is the process that allows a cell to split into two identical cells. This happens by having all of the DNA replicate bef ...
    Related: cell, cell division, mitosis, experimental procedure, population growth
  • Pager Vs Cell Phone - 735 words
    Pager Vs. Cell Phone What Does This Message Mean? Today devices known as Pagers are over flooding the world of communication. Pagers are devices that bring confusion to their users. The most common problem would be the method of sending a message. To send a message is very simple but you cannot give the message its sense of seriousness. That is why some Pagers owners discard messages that in fact might be a serious matter. Beginning in the late seventys when pagers started to gain popularity, more problems occurred after the necessity to add more area codes. This also affected the people who dont own Pagers. In the late eighties a solution to the problem was introduced. The Cellular Phone wa ...
    Related: cell, cell phone, cell phones, cellular phone, phone
  • Sickle Cell Anemia - 849 words
    Sickle Cell Anemia The problem is that sickle cell anemia affects about 72,000 Americans in the United States. Sickle cell anemia is an inherited disease in which the body is unable to produce normal hemoglobin, an iron-containing protein. Abnormal hemoglobin can morph cells that can become lodged in narrow blood vessels, blocking oxygen from reaching organs and tissues. The effects of sickle cell anemia are bouts of extreme pain, infectious, fever, jaundice, stroke, slow growth, organ, and failure. Sickle cell anemia hurts many people today in fact it hurts about 72,000 Americans. But some doctors are finding cures for this inherited disease. This disease causes mainly strokes and fever. Wi ...
    Related: anemia, cell, cell anemia, cell disease, sickle, sickle cell, stem cell
  • Sickle Cell Disease - 546 words
    Sickle Cell Disease The genetic disorder I was told to research was the Sickle Cell Disease. I will explain what mutation causes this disease, the characteristics of it, and what has developed in the area of gene therapy because of it. The Sickle Cell Disease is an inherited disease. The gene for hemogoblin-S (which causes the disease) is the most common inherited blood condition in America; although most people only inherit one copy of the gene for HbS, while the other gene, hemogoblin-A, is normal, and can override HbS, blocking the disease. These people have the HbS trait, but not the disease, therefore leading a normal life. For an offspring to acquire the disease, both parents must have ...
    Related: cell, cell anemia, cell disease, disease causes, sickle, sickle cell
  • Sickle Cell Disease - 1,283 words
    Sickle Cell Disease The sickle cell disease is an inherited blood disorder that affects red blood cells. People with sickle cell have red blood cells that have mostly hemoglobin's, Sometimes these red blood cells become sickle-shaped or crescent shaped and have trouble going through small blood vessels. When sickle-shaped cells block small blood vessels, less blood can get to that part of the body. Tissue that does not get a normal blood flow eventually becomes damaged. This is what causes the problems of sickle cell disease. As to this day there is really no cure for sickle cell disease. Red blood cells take oxygen from the air we breathe into our lungs to all parts of the body. Oxygen is c ...
    Related: cell, cell anemia, cell disease, chronic disease, sickle, sickle cell
  • Study Of The Enviroment On The Cell Membrane - 1,469 words
    Study Of The Enviroment On The Cell Membrane Study Of The Enviroment On The Cell Membrane Dave Lima SBI OA1 Mr. Swanson 10/4/99 Purpose: To study the effect of environmental changes in the permeability of living beet root cells. Procedure A: The effect of pH on the cell membrane Materials & Method 1. Cut a beet root into slices approximately 2mm thick. Use a cork bore to cut out thirty-five (35) slices. 2. Place the discs in a 250 mL beaker and rinse thoroughly in cool running tap water. The red pigment collected comes from the damaged cells and can be used to analyze the chemical nature of the pigment. 3. The pigment in a beet, anthocynanin, should be analyzed before beginning. This can be ...
    Related: cell, enviroment, membrane, ions
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