Paper Chromatography Lab • Obtain the supplies you ll need.
An interdisciplinary course which looks at the justice systems of such countries as: England, France, China, Japan, South Africa and the Islamic States as well as a brief look at the history of the Western Legal Tradition. Comparisons are made for the purpose of answering such questions as: What do the various notions of justice entail? How do they differ? Why? How are they enframed by their philosophical and belief systems? How do the outcomes of their applications of justice differ?
Paper chromatography lab report – Argumentative Essay
This course continues the process of preparing pre-service teaching candidates to teach mathematics and science in secondary settings by providing opportunities to see how theories explored in Knowing and Learning play out in instructional settings. You will design and implement instructional activities informed by your own understanding of what it means to know and learn mathematics and science, and then evaluate the outcomes of those activities on the basis of student artifacts (i.e., what students say, do, or create). Pre-requisite 2.5 gpa.
This course teaches students how to develop a business application using Visual Basic 2005. Specifically discussed will be graphic user interface (GUI) design; structured programming; object-oriented programming; reading from, and writing to, sequential access computer files; access database files; developing user defined subroutines, functions, and modules; development of single document interface; and data validation.
Paper chromatography lab with screened methyl orange , …
This course is an introduction to Adobe Photoshop, Adobe Dreamweaver and Adobe Flash for all art majors. Students will create an online portfolio of their work with an emphasis on personal promotion and professionalism. Lessons will focus on bitmap and vector based imaging and the aesthetics of web design. Additional topics will include how to effectively work with color, text, font layout and other means of digital imaging.
Paper chromatography lab with screened methyl ..
(1977a,b) Mouse intraperitoneal unknown LD50 500 mg/kg Schumacher & Grandjean (1960) Mouse (Swiss-Webster, intraperitoneal corn oil LD50 1990 mg/kg Klaassen & Plaa (1966) male) Dog intraperitoneal corn oil LD50 1260 mg/kg Klaassen & Plaa (1967) Mouse subcutaneous olive oil LD50 6500 mg/kg Kutob & Plaa (1962) a "ALD = Approximate Lethal Dose, the lowest dose causing death within 3 days Studies on sleeping patterns in Wistar rats by measuring electroencephalographic (EEG) and electromyographic (EMG) activity have shown a dose-related increase in total sleeping time and intervals between rapid eye movement (REM) sleep when the rats were exposed to 1770, 3500 or 10 600 mg/m3 (500, 1000 or 3000 ppm) methylene chloride for 3 h.
paper chromatography lab report photosynthesis - essays
Let us see now how protists and other little animals of ponds react to alteration to theirenvironment.
1 - Some microscopic algae, like the euglena, search out light (phototaxis) and to do thisthey use an organelle sensible to the light, named stigma. With a dark paper, cover thebottom part of a test tube holding a culture of euglena. The part of the test tube exposedto light should become green, rich with algae. Make the same experiment with othermicroscopic algae and with protozoa.
2 - Add two or three drop of distilled water to a little water drop collected in a pondand watch what happens to the protists. Very probably you will see them inflate and thenexplode. This occurs because of the different saline concentration inside and outside theprotists and the osmotic pressure which is produced inside their cells.
3 - Protists are sensitive to most chemicals and generally they react by running away; insome cases instead they approach them (chemotaxis). Prepare some microscope slides withprotists and observe through the microscope their behavior when you add acidic substances(i.e.: vinegar), basic substances (i.e.: backing soda), glucose, salt, sparkling water(rich of CO2), broth, milk, tiny grain of cheese, dyes, etc. At thebeginning use very low amounts of these substances, then increase their concentration.
4 - From a pond or an aquarium, collect a hydra and place it on a microscope slide with apair of water drops. Observing this tiny polyp through the microscope, probably you willsee some sucker shaped microorganisms (trichodina) moving on its body. Watch what happensafter adding a little drop of vinegar to their water! Trichodina will escape from thehydra and probably die. Hydra itself will have launched many of its harmful paralyzingdarts.
5 - Submit protists to different stimulus such as light, temperature, electric field(about 5 V in DC). In this last case, some protists will gather on the cathode (thenegative - pole). Also amebas are inclined to move towards the cathode. Change thepolarity of the current and observe the behavior of the protists.
Internet Keyword: phototaxis chemotaxis protists.
Paper chromatography lab answers
However, the effects were inconsistent. 8.2.1 Oral administration CD1 mice given doses of up to 665 mg/kg per day of methylene chloride in corn oil by gavage for 14 days did not show any effect on liver enzymes.