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  • Word Cell
    495 words
    History of the Cell The word cell was coined by Englishman Robert Hooke (1635-1703), after viewing slices of cork in a microscope. The word cell was derived from the Latin word cella meaning small container. The microscope created new possibilities in the study biology. It allowed scientists to look into a completely new view of cellular biology. Galileo is credited with the invention of the microscope. Two of the main pioneers in microscope usage were Robert Hooke and Antonio von Leeuwenhoek. R...
  • Abortion And Stem Cell Research
    589 words
    Stem cell research is one of the greatest debate topics of the 21st century. Stem cells are a powerful tool in the fight to save lives. But with so many ethical issues surrounding stem cell research I am in fear that we may loose a powerful asset. In the debate you are about to see myself and a few of my fellow group members are debating on the Con side of stem cell research. But this not a true depiction of our thoughts on Stem cell research. The debate would be lopsided with 9 people on the pr...
  • Lassa Fever
    1,140 words
    Lassa Fever: An Old World ArenavirusABSTRACTA brief summary of lassa fever, its history, pathology and effects on the indigenous populations. Also, lassa fever in the context of newly emergingdiseases. LASSA FEVER On January 12, 1969, a missionary nun, working in the small town of Lassa, Nigeria, began complaining of a backache. Thinking she had merely pulled a muscle, she ignored the pain and went on about her business. After a week, however, the nurse had a throat so sore and so filled with ul...
  • Nucleic Acid Of The Virus
    305 words
    Protists and Viruses flagellum is a whip like tail that helps organisms living in moist places tomoveThe characteristics of protists is they are eukaryotic organisms, they are one or many-celled but do not have the complex organization found in plants and animals, and some make there own food and other can't. Protists are plantlike, animal like and fungus like. A virus is a microscopic particles that make up either DNA or RNA core covered by a protein coat. Viruses are so small an elect rn micro...
  • Surface Area And Volume Of A Cell
    348 words
    Cells Cells are some of the smallest organisms around. All living things consist of cells, and yet they are invisible to the naked eye. How and why are they so small? Well, cells are the basic structural and functional units of life. As life on earth has evolved into organisms of different species and living things, two basic laws of nature have dictated why cells have remained so small. One is simply, shorter is faster. This is true as far as diffusion is concerned and also in terms of chemical...
  • Parietal Cells Secreting Hcl
    4,651 words
    12-11-00 The endometrium has a cycle and it is linked to the ovarian cycle and it starts with the proliferative phase, which is a phase of growth. During menses the top two thirds of the endometrium is shed and during the proliferative phase it regrows, develops the uterun glands and at about the time of ovulation it switches to the secretory phase, which is characterized by the glands secreting a very thick mucous secretion. It is a time of implantation of a fertilized ovum can take place. If f...
  • Earth 12 Years
    400 words
    Does Life Exist On Mars After the recent discovery of single-cell life forms from mars were discovered contained in meteorite that crashed to the earth 12 YEARS AGO. I have many doubts to believe that it is the case. There is still no proof after all these years that the sightings of flying sources moving across the sky at tremendous speeds do really exist in the first place. Many Photos and Videos are taken but with the amount that turn out to be forges, the possibility that one of them is real...
  • Typical Slime Mold The Germinated Spores
    529 words
    slime mold slime mold or slime fungus, a heterotrophic organism once regarded as a fungus but later classified with the Protist a. In a recent system of classification based on analysis of nucleic acid (genetic material) sequences, slime molds have been classified in a major group called the (or eukaryotes), which includes plants and animals. There are two groups of slime molds, the slime molds of the phylum (division) Myxomycota and the cellular slime molds of Acrasiomycota. Slime molds have co...
  • New Chromosomes Of The Daughter Cells
    552 words
    The Process of Mitosis Mitosis is the term used to describe cell division for replication. The product at the end of mitosis is two daughter cells both genetically identical to the original (parent) cell. This process (mitosis) is used for growth and repair within an organism (and also for asexual reproduction). There are five main stages to mitosis, called Interphase, Prophase, Metaphase, Anaphase and Telophase. Although the process has been divided up into these stages the process of mitosis i...
  • Abnormal Cells
    1,474 words
    ~Before I begin this letter, I want you to know that the reason why I'm sharing this with you is because I feel that I have to be completely honest about something that's very personal to me. Originally, I wanted to tell you, but I just did not feel comfortable and I did not trust you enough. But, I can not keep this from you any longer. I hope after I explain this that you can understand why I did so~ The past two years of my life have been filled with extreme hardship. Although I have had posi...
  • Corner Of The Cell
    752 words
    "Lesson Learned" As I was standing in front of the judge many emotions proceeded to give me a nudge, my heart sank and the tears rolled down my face as if I was trying to fill a river. I knew I was going to be jailed for the bad decision that I had made when I decided to get behind the wheel of my vehicle. After my sentencing I was escorted to the booking room where they proceeded to take my fingerprints, height, and my photo. After this procedure was finished I was lead down this long gloomy ha...
  • Cell Phones On The Planes
    323 words
    WHY AIRLINE CELL PHONE USE IS A NO NO Everyone is warned from the flight attendant not to use electronic devices during takeoff and landing, and not to use cell phones anytime on a plane. Even there is no hard proof that cell phones and other electronic devices pose safety risks on an aircraft, airlines suggest these electronic should be viewed as potentially hazardous and the source of an unacceptable risk to aircraft operations. (web) The cell phones should be banned on their use as a precauti...
  • Technology Behind Cell Phones
    522 words
    Digital cell phone from Nokia Millions of people in the United States and around the world use cellular phones. They are such great gadgets -- with a cell phone, you can talk to anyone on the planet from just about anywhere! These days, cell phones provide an incredible array of functions, and new ones are being added at a breakneck pace. Depending on the cell-phone model, you can: Store contact information Make task or to-do lists Keep track of appointments and set reminders Use the built-in ca...
  • Discovery Of Cells
    356 words
    History of the Cell Theory Ryan Strehlein Cells, the make-up of all living things. Some cell are complete organisms, such as unicellular bacteria and protozoa. Other types of cells a recalled multicellular, such as nerve cells and muscle cells. Within the cell is genetic material, Deoxyribonucleic Acid (DNA) containing coded instructions for the behavior and reproduction of the cell. The cell was first discovered by the 1665 English scientist Robert Hooke, who studied the dead cells of cork with...
  • Cell Membranes Of The Beetroot Discs
    800 words
    To investigate the effect of detergent on Cell Membranes Cell membranes are composed mainly of phospholipids. A cell membrane is a phospholipid bilayer, which acts as an effective barrier, controlling what substances enter and exit the cell. This property can be explained by the structure of phospholipids. Phospholipids are composed of a hydrophilic head and a hydrophobic tail. When in water, all of the hydrophilic heads face outwards into the water and the hydrophobic tails face each other, shi...
  • Use Of Solar Power
    2,168 words
    Introduction Sun The heat of the sun is about equivalent to burning a billion trillion tons of coal an hour. Even though only a small fraction of that heat ever reaches the earth it is still more then enough to power the whole world. People seemed to realize the importance of the sun around 30,000 BC. This was when people first started planting crops of wheat. They realized plants did better when planted in the sun over the shade. This caused them to worship the sun as a God. Many cultures built...

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