Score 1. How do you calculate magnification on a microscope? Answer: The shortest lens is the scanning objective; you use it to locate the object on the slide. The medium-length lens is the low-power objective. The longest lens is the high-power objective. Multiplying the power of the eyepiece lens and the nose piece lens gives you the total number of times an object will magnified. (4 points) Score 2. Explain how to focus a microscope using the high power lens. Include any safety issues
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- It is used for measuring the acidity or basicity of the solution. Crucible - it is used for heating a small amount of a solid substance at a very high temperature. Tripod = It is a three-legged stand that supports the wire gauze while heating. Microscope = It is used for viewing the ultra minute objects by the process of magnification. Multimeter = It is used for measuring the current‚ voltage and resistance. Here are a few examples: 1. beaker = a liquid measuring container 2. burette = measures
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Title: Observing Bacteria and Blood- Lab #1 Purpose: Being able to learn how to correctly use a microscope and the oil immersion lens to be able to see the prepared slides. Also to learn how to prepare my own yogurt and blood slides. Procedure: First‚ set up the microscope. Clean the ocular lenses and objectives with lens paper. Then pace the prepared e slide on the stage and make adjustments. Turn the rotating nosepiece until the 10x objective is above the ring of light coming through the slide
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prepared by placing a drop of water on a glass slide. A very small piece of the Elodea is placed in the water and covered with a slip cover. The slide was then placed under the light microscope and observed for cell shape‚ and identifying the different organelles evident in the plant. The slide was kept on the microscope stage until it became warm. After a few minutes the slide was observed for the movement of the chloroplasts. The movement of the chloroplasts was also recorded. A wet mount with a
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medicine‚ many innovations have occurred that impacted the world and vastly transformed the future of medicine. In my opinion‚ the four most important innovations in medicine are Vesalius’s book and view on anatomy‚ inoculation and vaccination‚ the microscope‚ and MRIs and CAT scans. The 16th century contained some of the greatest innovations of all time; one in particular was Vesalius’s anatomy book‚ De humani corporis fabrica. Vesalius’s book was the first medical book in which illustrations were
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other cells. D) All cells are motile. E) All cells have static organelles. Answer: B Topic: Opening Essay Skill: Factual Recall 2) Light microscopes A) can generally magnify objects about 10‚000 times without blurring. B) typically provide more resolution than an electron microscope. C) work by reflecting electrons off the surface of an object being studied. D) use light and glass lenses to magnify an image. E) are generally not used
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shapes. They can appear as short‚ bent rods or as long‚ rigid spirals. “Filaments are colorless‚ long‚ multicellular threads‚ (with or without cross walls). Some have slow gliding locomotion. (Rainis 43) When looking at a bacterial sample under a microscope‚ the experimenter has to stain the bacteria first. The stain serves to define the bacterial cells. All bacteria are either gram negative or gram positive. To stain a sample first the scientist has to “set” the sample. Setting the sample is the basis
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violet and an octopus‚ they are all built in essentially the same way. The most basic similarity is that all living things are composed of one or more cells. This is known as the Cell Theory. • our knowledge of cells is built on work done with microscopes • English scientist Robert Hooke in 1665 first described cells from his observations of cork slices. Hooke first used the word “cell”. • Dutch amateur scientist Antonie van Leeuwenhoek discovered microscopic animals in water • German scientists
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Practical 1: Observation of mitosis in garlic root tips Introduction The practical will involve the preparation‚ observation‚ and classification‚ of the various stages of mitosis by observing garlic root tips using a microscope. The study comes under the heading of cytogenetics which is the visual characterisation of genetic material and the study of how that material reacts during the life of the cell. Strictly speaking‚ mitosis is the division of the nucleus into two daughter nuclei that are
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organelles. In this lab‚ animal and plant cells will be compared through a microscope to identify differences in the structures of each type of cell. Almost all cells are too small to be seen through human eyes. Therefore‚ a microscope was used in the lab and a sample of a plant cell was placed on. The microscope was then adjusted and viewed on highest power. A picture of the image of the cell seen through the microscope was recorded as data. The same process was repeated using an animal cell instead
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