Bio 1011 Cells Exam #1 Answer the multiple choice questions on the scantron sheet. Select the one choice that best answers the question. Answer the short answer questions in the space provided at the end of the exam. 1. Which of the following is the SMALLEST? a. a bacterium b. a ribosome c. a hexose sugar d. a water molecule e. a yeast cell 2. The four main families of small inorganic molecules in cells are a. salts‚ sugars‚ fatty acids‚ amino acids‚ nucleotides b.
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FUEL CELL CARS Fuel Cell cars are a major part of the fleet of Zero-Emission Vehicles. The fuel cells are fueled with pure hydrogen and hence they are considered to be zero emission vehicles. Fuel cells have been used on spacecraft for many years to power electric equipment. These are fueled with liquid hydrogen from the spacecraft ’s rocket fuel tanks. Basic Mechanics Fuel cell vehicles turn hydrogen fuel and oxygen into electricity. The electricity then powers an electric motor‚ just like
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“Largest Study on Cell Phones and Cancer Finds No Link”‚ Associated Press‚ Time‚ October 21‚ 2011 This article talks about how cell phones are not linked to cancer. According to Danish researchers‚ the biggest study ever consisting of 350‚000 people found no evidence of any link. This concluded that people who have used a cell phone for a decade don’t have different cancer rates than those who have not. Last year‚ a different study found no connection between cell phones and cancer. But
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Abstract Basal Cell Carcinoma (BCC) is the most common type of malignant cancer found in the world today with a 3-10% increase in incidence each year. White males have a 33-39% risk of having BCC during his lifetime‚ whereas women have a risk of 23-28%. The American Cancer Society (2014) reported that 8 out of 10 patients with skin cancer are suffering from BCC with more than 2 million new cases each year. Therefore a method needs to be developed that can detect BCC at the early stages to prevent
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The Cell Phone Evolution Table of Contents THE BEGINNING 3 A NEW WAY TO COMMUNICATE 4 PRESENT CELL PHONES 6 FUTURE CELL PHONES……………………………….………………………………….……7 REFERENCES……………………………………………………………………………………8 The Cell Phone Evolution THE BEGINNING Over a century ago‚ Alexander Graham Bell changed the way people communicated with each other. Back when he invented the phone in 1876‚ no one could imagine that over the next century‚ his invention would change the way societies interact
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Cell Phone Etiquette Everyone has had that experience‚ at the movies‚ out to dinner or even at a meeting and all of a sudden that new hot song starts playing and you realize that it is a ring tone. If it is only once then do not worry about it‚ but‚ if it seems to happen all the time it is a problem. There is a time and a place for the use of cell phones and then there are times when they should not be used. Dinner at a restaurant is neither the time nor place to be receiving phone call. When
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Seira Sanchez Teen Driving Issues Project Cell Phones and Driving Cell Phones and Driving. Cell phones and driving are an inclining issue for this century and causes many teen related car accidents. This is caused when a person uses a mobile device and becomes distracted from paying attention to the road and unfortunate events lay ahead. The probability of this person being in a crash is 4 times higher if conversing‚ and 23 times more likely if sending a text. Statistics have proven that in 2008
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without cell phones!? How do you think it has affected the world today? The cell phone allows people to communicate with other people anywhere in the world with anyone they want at anytime. How you use the cell phone is what makes it a positive or negative impact on you‚ society‚ and the environment. A man named Martin Cooper invented it; he invented it because he wanted people to be able to carry their phones where ever they wanted. He invented it on April 3rd‚ 1973 in a Motorola Factory. A cell phone
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The idea of a cell phone has been around since the nineteenth century. A cell phone is also referred to as a mobile phone‚ or a cellular device. The first cellular device was invented in 1973 by Martin Cooper. This mobile telephone was the size of a brick! Ever since this invention‚ the cell phone has become the most prevalent piece of technology. Nowadays‚ the majority of people in the world possess a cell phone. One country in particular that is very popular when it comes to cell phones is the
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Cell Phone Radiation Written by: Jacob Nickerson Cell phone radiation is something we as consumers are exposed to each and every day. What effect does this have on us? Can this radiation alter the cell structures and functions of our bodies? For what amount of time can our bodies be exposed to this radiation without health risks? These are all questions many scientists and researchers are trying to answer with every day that passes. Researchers are divided on a conclusion of whether or not
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