Report 2 Microscope and the Cell Template Student: Mavon Riley Email: shantariley@yahoo.com Date: 09/05/2014 I. Purpose of the Microscope II. The Compound Microscope EXERCISE 2.1 – Label the parts of the compound microscope 1. Eyepiece 2. Arm 3. Course Adjustment 4. Fine Adjustment 5. Revolving Nose piece 6. Objective Lenses 7. Stage Clips 8. Stage 9. Iris Diaphragm Lever 10. Condenser 11. Light Source 12. Base EXERCISE 2.2 – Calculate microscope magnification
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preparation is …… in light microscope and ……. in electron microscope. 3- Fixative used in tissue preparation for LM examination is …….. while in EM is …….. 4- Substance used for tissue embedding in preparation for LM examination is ……..… while in EM is ………... 5- The most common dye use in routine histology is …….. . 6- The resolution power is …………………….. 7- The resolution power for LM is……… and for EM is ………. 8- The source of illumination in electron microscope is a beam of high velocity ……
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circulatory system relies on diffusion and it being fast which is why the majority of organisms with open circulatory systems are small. They have transparent bodies which make them ideal for this experiment so the heart can be observed easily under the microscope. They are very particular about the habitat they live in and whether they flourish in an area can be brought down to levels of: salinity‚ dissolved substances‚ oxygen‚ pH and ammonia and temperature. [pic] Caffeine – Caffeine is known as
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Technology to Overcome The Limitation of Sight and Hearing Introduction Devices to overcome Limitations of sight Microscope Binoculars Function: Binoculars are used for viewing far objects like buildings‚ birds‚ and much more. Other information related to the devices Telescope The earliest recorded working telescopes were the refracting telescopes that appeared in the Netherlands in 1608. Their development is credited to three individuals: Hans Lippershey‚ Zacharias Janssen and Jacob Metius. Binoculars
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in the early 1600s‚ in the Netherlands‚ where the spectacle maker‚ Zacharias Jansen‚ invented the first compound microscope along with the first telescope. The microscope became an instant hit and everyone was buying these contraptions except for a fellow Dutchman by the name of Anton van Leeuwenhoek. Instead of buying a microscope‚ he decided to make one for himself. His microscope was a unique invention‚ indeed‚ with the appearance of a wooden disk connected to metal screws. After Leeuwenhoek
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this lab the structures of various cells were viewed through a compound microscope. The bacteria in yogurt was viewed a long with a slice of potato‚ and a thin skin of red onion. The potato was dyed with iodine while the red onion was dyed with methane blue. The students had to assemble the first three slides. Two more slides were provided these are the yeast and protozoa cells. Those two are also viewed with the same microscope. Introduction Cytology is the study of cellular structure and function
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Making things look bigger When you use an optical instrument‚ whether it be something very simple like a magnifying glass‚ or more complicated like a telescope or microscope‚ you’re usually trying to make things look bigger so you can more easily see fine details. One thing to remember about this is that if you want to make things look bigger‚ you’re always going to use converging mirrors or lenses. Diverging mirrors or lenses always give smaller images. When using a converging lens‚ it’s helpful
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visually determine each phase through a microscope with a clear understanding of what is happening. With this knowledge and this visual a picture is to be drawn as descriptive as possible for each phase. Materials: The materials needed are; 1) Microscope 2) A slide containing plant cells 3) Blank paper 4) A half of a Petri dish to draw circles 5) A pen. Procedure: The steps to follow in order to properly conduct this lad are; 1) Get a microscope as directed by your teacher. 2) Get a
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The effects of caffeine on the heart rates of Daphnia. Introduction In the water flea‚ Daphnia‚ the single‚ small heart is easily visible when viewed under a low power microscope. The heart rate can be monitored and measured in different conditions‚ such as change in water temperature‚ or in this case‚ the concentration of chemicals added to the water they habitat. A change in daphnia heart rate under the influence of a concentration of caffeine solution creates a procedure providing an interesting
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of the Cell Key Concepts: 4.1 The cell is the basic unit of life; its organization and size are critical in maintaining homeostasis‚ and its size and shape are adapted for its function. 4.2 Biologists study cells using microscopes and biochemical techniques such as fractionation. 4.3 Unlike prokaryotic cells‚ eukaryotic cells have internal membranes that divide the cell into compartments‚ allowing cells to conduct specialized activities within
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