components under a microscope. By using different stains‚ one can preferentially stain certain cell components‚ such as a nucleus or a cell wall‚ or the entire cell. Most stains can be used on fixed‚ or non-living cells‚ while only some can be used on living cells; some stains can be used on either living is or non-living What Cellularcells. Staining? The most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also
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Exercise 1: Correct Use of the Scientific Method and an Experiment with Macromolecules I. Objectives In this lab‚ students will: a.) Learn how to utilize the Scientific Method to develop a testable hypothesis b.) Generate an effective experimental design from a hypothesis c.) Understand the chemical differences between different macromolecules and how these differences can be used to design tests for each molecule. d.) Identify macromolecules in solutions using chemical analyses. e.) Practice
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differentiating shape and structure through utilization of microscope. Procedure – Instructions followed as per procedure‚ specimens viewed through v-scope‚ using 10x‚ 20x‚ and 40x stained wet-mount. Observations compared amongst one another from cd-rom. Spirillum bacteria Bacillus Cheek Swab Yeast Analysis – Using the virtual microscope‚ the images seemed to be more clear and concise. Using the light microscope again for another experiment has increased my confidence
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macroscopically (in a such a way as to be large enough to be visible to the naked eye; in a way which is comprehensive or is concerned with large units) and microscopically (Too small to be seen by the unaided eye but large enough to be studied under a microscope). When analyzing the hair macroscopically you should look at the length‚ color‚ sheen‚ whether it’s wavy or straight‚ and the presence or absence of follicle tissue or
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The onion epidermal cell is transparent with a simple structure so it is a suitable cell for studying the effect of water loss on cells (2) Some specimens can be viewed directly underneath the microscope but putting a drop of water on the specimen can improve how the structures appear under microscope and also prevent the specimen from drying out on the slide (2). Adding water to the specimen is called wet mount. The liquid used in wet mount fills the space between the slides to support the specimen
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Question: How does mitosis produce new cells‚ and how is mitosis the same and different? Materials: - Compound microscope - Alliums root slide - Whitefish embryo slide - Power supply Procedure: Refer to page 48 and 49 in the textbook. Results: See attached sheet for drawings of my results. Discussion: Analyze and interpret question 1 and 2 on page 49. 1. The cells in the root tip region of the alliums differ quite a bit from the cells that are found deeper in the root
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Microscope Parts & Function Parts of the Microscope |[pic] |1. Eyepiece |Contains a magnifying lens that focuses | | | |the image from the objective into your | | | |eye. | |
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slide in order to see the different microbes and determine their cellular shape. Introduction The purpose of this lab was to become familiar with the light microscope and how to accurately use it to view specimens. The staining method was used to observe different cellular shapes. The exercises preformed using the light microscope were: magnification‚ slide preparation‚ and staining. The stain used in this lab was methylene blue‚ a common simple stain. The different types of specimens
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EXPERIMENT No. 3 Objective :- To prepare a temporary mount of a leaf peel to show stomata. B) Materials required :- Fresh leaves of plant‚ compound microscope‚ glass slides‚ cover slips‚ water‚ glycerine‚ safranine‚ blotting paper‚ needles‚ brush etc. C) Theory :- i) Stomata are minute pore present on the surface of the leaves. ii) Though they are found on both the upper and lower epidermis of the leaf‚ they are more in number on the lower
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reasoning behind how this could produce a signal. We know that electromagnetic radiation is produced by accelerating charges. In the radio transmitter‚ electrons oscillate up and down and are thus accelerating. An electron will exert a force on another electron when they are some distance away‚ like charges repel. When the electron in the transmitter oscillates up and down‚ the direction of the force it exerts changes since the source of the force is moving. It takes some time for the change
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