Northern Caribbean University Department of Biology‚ Chemistry and Environmental Sciences **** BIOL 165: ANATOMY & PHYSIOLOGY1 Laboratory Manual 2013-2014 http://www.udel.edu/biology/Wags/histopage/colorpage/cin/cin.htm To be used in Anatomy & Physiology-BIOL 165 & 166 labs only Not to be used as a source of reference Not to be sold or distributed outside of the classroom Lecturers: Nadia Washington‚ MSc. Delano Lewis‚ PhD. Disclaimer
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atoms being indivisible (that’s how we know about protons and neutrons and electrons and the other subatomic particles). And how atoms of the same element have identical properties: atoms of an element may have slightly different masses‚ e.g: ISOTOPES. You can see an atom using the scanning tunneling microscope. 4-2: Discovering subatomic particles and Nuclear particles (alpha‚ beta‚ gamma) Discovering the electron was a complete accident Cathode ray tube: used by Sir William Crookes. He
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this experiment is to see the stages of mitosis in a garlic root tip. Apparatus: Garlic roots 5 Molar hydrochloric acid Toluidine blue stain 2 watch glasses or small sample tubes Hollow glass blocks Pipettes Microscope slides and cover slips Pair of fine forceps Filter paper Microscope with magnifications of x100 and x400 Stop watch Method: 1. Firstly cut out about 1cm from several root tips of growing garlic roots. Choose root tips which are white and have rounded edges‚ not ones that are turning
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Exercise 1: Identifying Parts of a Compound Light Microscope Question A. Study and label the microscope parts in Figure 3. Microscope Parts Microscope Parts A EYEPIECE G MIRROR/ILLUMINATOR B TUBE H BASE C REVOLVING NOSEPIECE/TURRET I LONGITUDINAL CONTROL KNOB D OBJECTIVE LENS J TRANSVERSE CONTROL KNOB E STAGE K FINE ADJUSTMENT F DIAPHRAIGM L CASE ADJUSTMENT Microscopy Use and Function Exercise 2: Illuminated Pocket Microscope Questions A. Draw the image of the root
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The different electron energy levels caused in hydrogen cause these lines in the spectrum to be produced in this way because the wavelengths that are released when the electron move back to the ground state is specific and it varies accordingly. 2. Into which energy level are electrons dropping into to make these visible lines? The electrons are dropping back to the ground state which is the bottom most energy level to makes these visible lines. 3. What happens when the electrons drop into the
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as mercury and cesium. Density of metals is not similar also. For example‚ sodium has density of 0.97g/cm3 while lead has density of 11.4g/cm3. Melting point of sodium is 98.0oC while for lead it is 327.6oC. Metals have the capability to lose electrons when they react with non-metals such as O2‚ halogens‚ water‚ acids and other metal cations. Metals react with non-metals but each to a different extent. The most reactive metals are alkali metals (group1A‚ where group is a vertical
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Harley−Prescott: Laboratory Exercises in Microbiology‚ Fifth Edition Front Matter Preface © The McGraw−Hill Companies‚ 2002 PREFACE Take interest‚ I implore you‚ in those sacred dwellings which one designates by the expressive term: laboratories. Demand that they be multiplied‚ that they be adorned. These are the temples of the future—temples of well-being and of happiness. There it is that humanity grows greater‚ stronger‚ better. Louis Pasteur (French chemist‚ founder of microbiology
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Lab 1: Microscopy and the Metric System Part A: 1. List the components of the compound microscope and their function. 2. determine the total magnification given that you are using a compound microscope with the following objectives: 4x‚ 10x‚ 40x‚ and 100x 3. what is meant by the depth of field? 4. what is meant by the field of view? 5. describe the process of making a wet mount. ________________________________________________________________________________ 1. -Focal adjustment; used
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Examination Objectives: 1. To learn how to use a microscope. 2. To study the cell structure of starch grains‚ onion cells and cheek cells. 3. To differentiate the difference between starch grains‚ onion cells and cheek cells. Introduction: Microscope is an optical instrument use to magnify micro objects that hardly or impossible to be observed by naked eyes‚ so that the objects can be studied. Compound light microscope is one of the microscopes that is often used. It has a lens or a combination
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of the electron transport chain in cellular respiration. In your explanation‚ discuss and identify key molecules involved in this process and explain their relationship which each other in terms of how they contribute to the main cellular purpose of this process. Electron transport chain plays a key role of in the production of oxygen in cellular respiration. ETC uses many enzymes located on the inner mitochondrial membrane during the production of oxygen. The source of these electrons are NADH
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