Aganon‚ Glaiza S. Ibanez (14 August 2014) (21 August 2014) I. Introduction Microscopes and the field of Science are two inseparable things. Almost all Sciences are associated with the use of a microscope‚ a device use to view objects which are not visible to the naked eye. The term microscope came from the Greek term “Mikros” which means “small” and “Skopien” which means “to examine” (Vocabulary.com‚ 2014). Today‚ microscopes are of great importance especially on the field of Biological Science. One
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was observed using a microscope. The task was to observe and identify the different types of cell‚ cytoplasmic streaming‚ and plasmolysis of Egeria densa. First‚ the microscope was examined and investigated to master the use of the equipment. A microscope slide grid which was on the slide glass was required to be seen clearly using 4x‚ 10x and 30x. During the latter part of the experiment‚ the Egeria densa was observed using the microscope to understand the use of microscope by actually examining
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Middelburg‚ credited with inventing the first microscope‚ which at the time was a tremendous increase in technology and allowed for detailed drawing‚ sketching‚ and recording. His microscope was very simple‚ hand-held‚ and consisted of three draw tubes with lenses inserted into the ends of the flanking tubes. The lens for the eyepiece was bi-convex and the objective lens was plano-convex‚ which was a very advanced compound design during this time period. His microscope was able to magnify objects up to three
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terms and usage of a microscope. ●Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Care must be taken while handling the microscope so as not to accidentally drop anything and harm oneself. Questions A. The following statements are true or false. If true‚ write a “T” on the answer line. If false‚ write a word or phrase in the blank to make the statement true. F | 1) The microscope lens may be cleaned with
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The scanning electron microscope (SEM) employs electron bombardment to image very small specimens. Electron microscopes are used to image specimens that range from 1 nm to 100 µm in size. What is the equivalent in inches? .000000039in to .000003937 in . Show your calculations. 1nm=.000000039in‚ 100nm *.000000039=.000003937in Procedure 1. Parts of the Compound Light Microscope: Refer to a microscope as this section is read. Label the microscope diagram that follows
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Endospore and Capsule Cell Staining Allison Lui Partner: Mary Chagin BIOL-235 W07 Dr. Runco 2/10/15 Introduction The purpose of this lab is to learn what endospore and capsules are‚ and how to identify them under a microscope using capsule and endospore staining methods. Capsules are found only in select bacteria‚ and serve a protective purpose. Made out of sugars and proteins‚ they are antiphagocytic‚ which prevents other cells to engulf the bacteria through phagocytosis. It
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Practical 1 - Investigation into size and scale of microscopic tissues This practical focuses on microscope technique and using graticules and stage micrometers to determine size and scale in biological cells and tissues. Intended learning outcomes By the end of this practical you should be able to: • Use a microscope fitted with an eyepiece graticule and stage micrometer • Calibrate the eyepiece graticule using the stage micrometer • Use the calibrated graticule to determine the actual
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organelles that can be seen under a light microscrope are Cell Wall‚ Cell membrane‚ Cytoplasm‚ Mitochondria (with staining)‚ Nucleus‚ Vacuole‚ Nucleolus and Cytoskeleton. The rest need a higher resolution to be visible to the naked eye‚ thus the electron microscope is used. KEY WORDS AND DEFINITIONS - Key Word | Definition | Molecule | A group of atoms bonded together‚ representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction | Permeable | (of a material
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be studied without the aid of a microscope. Microscopes are designed to view objects that are too small to see with naked eyes. The different kinds of microscopes include; phase-contrast‚ dark-field‚ polarizing and UV. Each of these microscopes differs in the source and manner in which the light is passed through the specimen to be viewed. The microscopes that are usually used in biology labs are compound binocular or monocular light microscopes. Compound microscopes have a minimum of two magnifying
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helped to advance the cell theory Robert Brown’s microscope Robert Hooke’s microscope Transmission electron microscope Modern light microscope Scanning electron microscope 4) Describe evidence to support the cell theory 5) Discuss the significance of technological advances to developments in cell theory 6) Draw the plant and animal cell 7) Assess the impact of technology including the development of the microscope on the development of the cell theory. 8)
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