http://www.mainsgate.com/spacebio/modules/gs_resource/CellDivisionMetaphase.jpeg Jonathan Bain Jesse Pavis Biology D Mr. LaRocca 10/12/14 Introduction The Compound Light Microscope is a tool used to make images larger of small objects that are hard to study with your eyes. The compound light microscope, which is going to be used in this lab activity, is an instrument with two lenses and various knobs to focus the image. In this lab, we will learn about the microscope and how to properly use it (Kim, 2001). Anton van Leeuwenhoek (2001) was the first person to observe and describe single celled organisms by using handcrafted microscopes. He originally referred to these single celled organisms as animalcules which we now call microorganisms. Even though he was the first person to do all of this, however he was also the first to record and observe muscle fibres, spermatozoa, bacteria and blood flow in capillaries which are also referred to as small blood vessels. Zacharias Jansen (2001) is known to be the first creator of the compound microscope and is dated around the 1590's. There were …show more content…
To do this lab, a compound light microscope is needed to examine the letter “e” which will need to be cut out from a newspaper. In order to cut out the e from the newspaper, a pair of scissors will be needed. Once the e is cut out place the letter “e” onto the glass slide. Drop one drip of water onto the glass slide and drop the “e” right-side up onto the drop of water. When finished place the cover slip onto the drop of water. Make sure that there is no bubble so drop the cover slide slightly onto the water drop. Then place the slide onto the compound light microscope and then place the focus onto 10X. Then adjust the focus onto the “e” until the e is clearly
to get an idea of how I would do my real experiment and what apparatus
One can almost feel the searing penetration of Lewis Thomas’ analytical eye as it descends the narrow barrel of the microscope and explodes onto a scene of vigorous, animated, interactive little cells—cells inescapably engrossed in relaying messages to one another with every bump and bounce; with every brush of the elbow, lick of the stamp, and click of the mouse…
Objective The ability to analyze a substance and determine properties of the substance is an important skill for AP Chemistry students. Major concepts for the “Analysis of Alum” laboratory are percent composition, water of hydration, and molecular formula. They will be used in three different experiments to determine the melting point of alum, the mole ratio of hydrated water to anhydrous alum, and percent of sulfate ion contained in alum. The values acquired in the lab should be close to the calculated values of 92.5 ˚F, 12 moles of water to 1 mole of alum, and 59%, respectively.
One definition of a microscope is "an optical instrument that uses a lens or a combination of lenses to produce magnified images of objects." Holden Caufield can be symbolized by a microscope and its parts: the field of view, the focus, and the magnifier.
This research steps are found in an organismal diversity lab manual, in the chapter scientific investigation using Daphnia written by P.J. Castle and G.S. Paulson. To start the research, the the group of investigators set up the microscope that will be used to look at the specimen at room temperature around two O’clock in a lab at the Franklin Science Center at Shippensburg University. Carefully the Daphnia was placed on a depression slide that was then prepared to be used, but made sure to not kill it. Once the slide and the microscope was set up the researchers examined the organism
Apfeldorf’s article “Uncovering a Tiny World” discusses Hooke’s book which is known for its microscopic illustrations of insects and microbes that Hooke had drawn as he viewed them under the microscope. His elaborate drawings of tiny objects and insects were the scientific evidence that supported his claims of the significant value of the microscope to science and the many ways it could be used. The book also contained a description of how to make a powerful microscope with a spherical lens, much like Leeuwenhoek’s glass pearls. Leeuwenhoek traveled to England that same year and is believed to have obtained a copy of Hooke’s book and
Planning Firstly here is a list of equipment I used. Boiling tubes Weighing scales Knife Paper towels 100% solution 0% solution (distilled water) measuring beakers potato chips Cork borer. We planned to start our experiment by doing some preliminary work. We planned to set up our experiment in the following way.
Cut a small "d" from the newspaper and place it in the center of a clean microscope slide so that it is in normal reading position.
Create wells: put a comb template in the middle of the tray; wait until the mixture becomes solid. After, remove the comb standing straight. 4. Remove rubber ends: transfer the gel tray into the horizontal electrophoresis and fill it with the concentrated electrophoresis buffer. 5. Materials and methods: Experiment: 1st, prepared milk samples should be already done by the teacher.
As the building block of life, cells contain inconceivable amounts of genetic information, as well as perform functions any living being needs in order to survive. Since a lot of people tend to struggle with such a complete utterance, Joshua Z. Rappoport develops the scholarly text, The Cell, on,”discovering the microscopic world that determines our health, our consciousness, and our future,”(front cover). Other than this text, many others publish their works in the past on this subject; some of which are Nobel Peace Prize winners. Throughout chapter one, “A Day the World Changed”, Rapporport refers to Robert Hooke who uses a microscope in the 1660s to examine a slice of cork. Overall, “what he saw changed human understanding of the world in a way at least as profound as the first telescopic examination
borate) and 1.0 g. of sodium hydroxide in 20 mL of warm water. It may
Compound Microscopes have assisted scientists in the research of objects invisible to the naked eye for more than four hundred years and have greatly influenced our understanding of the world around us. As technology has progressed, Light Microscopy has significantly improved. These improvements include illumination methods, the Resolution lens quality and the use of oil immersion.
First we placed the slide under the simple microscope and observed it at ten times magnification level. We each took turns looking. We then copied them as drawings into our Cornell notebooks. After that we changed the magnification to fifty times and observed the slide. We each took turns looking. We then copied what we saw into our Cornell notebooks. After that we changed the magnification level to sixty times and we each took turns looking at the slide. We then copied what we saw into our Cornell notebooks and sat down together. When we were all done drawing we spoke about what we seen and gave each other ideas on how to write our Lab Reports.
The origin of the biological term cell came from Robert Hooke in 1662. He observed tiny compartments in the cork of a mature tree and gave them the Latin name “cellulae”, which translates into “small rooms”. In the late 1680s, Anton Van Leeuwenhoek was the first scientist to actually lay eyes on a cell. Before, there had been theories of “cells” but no one had the technology to see something so microscopic yet. Van Leeuwenhoek ran a draper 's shop and wanted to see the quality of the thread, better than the magnifying lenses available at that time. Therefore, he began to develop an interest in lens-making, with an interest already in microscopes and a familiarity with glass
Antony van leewenhoek invented simple microscope in 1670 which was able to magnify upto 200x so he was the first person to see individual cells.