Discovering Cells Directions: answer the following questions using complete sentences. Use pages 6C-13C of your textbook. 1. What are cells? 2. When was the first microscope invented? 3. What is a microscope? 4. What is the difference between a simple and compound microscope? 5. Who was one of the first people to observe cells? 6. What did Anton van Leeuwenhoek discover? 7. A Scanning Tunneling Microscope (STM)
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Animal Cell Song I’m here to talk to you about animal cells. They are made up of many organelles. Chromosome‚ nucleus‚ those are a few They need them to live like me and you. Well we’ll start with the nucleus the “command center.” It’s the brain of the cell and keeps it away from danger. It’s a safe haven for the chromosomes. They store DNA like our own. The precious DNA carries our genes. Genes tell the cell what to do like info. machines. Now let’s talk about the mitochondrion
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11514-015) enhances transfection performance in HUVEC cells. • The addition of antibiotics to media during transfection may result in cell death Transfection of HMECs Use this procedure to transfect plasmid DNA into HMECs cells in a 12-well format All amounts and volumes are given on a per well basis. 1. Cell density should be 50~80% confluent on the day of transfection (use the normal growth medium without antibiotics). 2. For each well of cells to be transfected‚ dilute 1 μg of DNA into 200
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From 1961 to 1989‚ the Berlin wall was an obstruction built so as to divide Berlin and cut off western Berlin from Eastern Berlin. It continued like this for almost 30 years until it opened in 1989 and started to be demolished in 1990. The wall included guard towers which were placed along large concrete walls‚ which surrounded a large area (which would later be known as the ‘death strip’). This area contained many other defences to prevent any passing through. The wall served a purpose to stop the
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The Berlin Wall‚ built in August of 1961‚ was a physical symbol of the political and emotional divisions of Germany. The Wall was built because of a long lasting suspicion among the Soviet Union on one side and Western Europe and the United States on the other. Once World War II was over‚ these Allies no longer had a common purpose to hold them together. Their differences became less hidden and more irreconcilable. Where family’s had to break apart and had no word about‚ it because the type of government’s
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Impact of Technology on Cell Theory Technology has had a profound impact on the development of cell theory‚ allowing scientists to view the components of organisms on an unprecedentedly small scale. Before the creation of microscopes‚ misconceptions about how organisms were originated arose. The idea of spontaneous generation‚ a theory held for nearly two millennia‚ proposed that organisms originated from inorganic matter. The lack of technology impeded on the development of cell theory‚ until the creation
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Stem Cell Revisted George W. Bush was the United States of America’s 43rd president. During his presidency‚ Bush faced many ground breaking decisions that would help mold the nation’s growth. One such issue was that regarding the use of government funds to support stem cell research (“George W. Bush”). Stem cell research has long been deemed a taboo subject. People’s opinions can vary greatly regarding the use of stem cells to further research. Former president
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Joanne Chan 12C Joanne Chan 12C Size of Allium cepa cells and Ovibos moschatus Oculi cells: Data collection and processing Raw data Table 1: Longest length recorded of Allium cepa cells and Ovibos moschatus Oculi cells Length of Allium cepa cells/ m - ±5.0 | Diameter of Ovibos moschatus Oculi cells/ m - ±5.0 | 330.0 | 25.0 | 360.0 | 30.0 | 320.0 | 30.0 | 280.0 | 40.0 | 300.0 | 40.0 | 350.0 | 30.0 | 300.0 | 30.0 | 290.0 | 30.0 | 420.0 | 20.0 | 280.0 | 40.0 | 310
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Walls that Divide Worlds Everywhere around the world‚ barriers located on each and every continent. From the common American’s back yard to the Great Wall of China‚ we use them for privacy and security‚ but not all uses of walls have good intentions behind them. An example such as the Berlin Wall‚ created in 1961‚ divided East and Western Germany until it’s fall in 1992. The North-South Korean border (also known as the Korean DMZ) was created to diffuse tension between the two sister countries
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The Fall of Berlin Wall > 1989 It has been 23 years since the fall of the Berlin Wall. Following World War II‚ the area that was Germany was divided into four military sectors controlled by France‚ the United Kingdom‚ the United States and the Soviet Union. On May 23‚ 1949‚ the sectors controlled by France‚ the United Kingdom and the United States became the Federal Republic of Germany. On October 7‚ 1949‚ the sector controlled by the Soviet Union became the German Democratic Republic. The
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