Nano Labs (Lec5 Confocal)

Nano Labs (Lec5 Confocal) - Confocal Microscopy Nano Labs,...

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Nano Lab MAE C187L/C287L Confocal Microscopy Nano Labs, MAE C187L/C287L
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Life is Complex Nano Lab MAE C187L/C287L The cell is one of the most basic and smallest units of life. There are millions of different types of cells. In the body, there are brain cells, skin cells, liver cells, stomach cells, and the list goes on. All of these cells have unique functions and features. And all have some recognizable similarities. All cells have a 'skin', called the plasma membrane , protecting it from the outside environment. The cell membrane regulates the movement of water, nutrients and wastes into and out of the cell. Inside of the cell membrane are the working parts of the cell. At the center of the cell is the cell nucleus . The cell nucleus contains the cell's DNA , the genetic code that coordinates protein synthesis. In addition to the nucleus, there are many organelles inside of the cell - small structures that help carry out the day-to-day operations of the cell. One important cellular organelle is the ribosome . Ribosomes participate in protein synthesis. The transcription phase of protein synthesis takes places in the cell nucleus. After this step is complete, the mRNA leaves the nucleus and travels to the cell's ribosomes, where translation occurs. Another important cellular organelle is the mitochondrion . Mitochondria (many mitochondrion) are often referred to as the power plants of the cell because many of the reactions that produce energy take place in mitochondria. Also important in the life of a cell are the lysosomes . Lysosomes are organelles that contain enzymes that aid in the digestion of nutrient molecules and other materials.
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Nano Lab MAE C187L/C287L History of Optical Microscope The invention of the first microscope took place long after people discovered lenses, the essential component of microscopes. Many things can act as a magnifying lens. A glass of water, a bead of glass or a gemstone can all bend light and make an object appear larger. Around 1660, Robert Hooke was credited with the microscopic milestone of discovering the basic unit of all life, the cell. The structural mesh he saw reminded him of the small monastic rooms called cells. Hooke is also credited with being the first to use the basic three-lens configuration that is still used in microscopes today.
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Nano Lab MAE C187L/C287L Optical Microscopy
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This note was uploaded on 03/03/2009 for the course MECH&AE 187L taught by Professor Yongchen during the Spring '08 term at UCLA.

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Nano Labs (Lec5 Confocal) - Confocal Microscopy Nano Labs,...

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