Cell: The cell is the basic structural‚ functional and biological unit of all known living organisms. Cells are the smallest unit of life that is classified as a living thing‚ and are often called the "building blocks of life". Discoverer: The cell was discovered by Robert Hooke in 1665. The cell theory‚ first developed in 1839 by Matthias Jakob Schleiden andTheodor Schwann‚ states that all organisms are composed of one or more cells‚ that all cells come from preexisting cells‚ that vital functions
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Lab #4 The Synthesis of Organic Polymers CHM2123‚ Section C October 21‚ 2014 Introduction: Organic polymers are macromolecules that are composed of smaller molecules called monomers. There are two main groups of polymers: natural polymers and unnatural (synthetic) polymers. Natural polymers include proteins such as cellulose and starch and are a necessity for our existence. On the other hand‚ synthetic polymers such as the polycarbonate in our lab goggles
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Cell Structure - Cell Organelles 1. What is cell theory? Cell theory asserts that the cell is the constituent unit of living beings. Before the discovery of the cell‚ it was not recognized that living beings were made of building blocks like cells. The cell theory is one of the basic theories of Biology. 2. Are there living beings without cells? Viruses are considered the only living beings that do not have cells. Viruses are constituted by genetic material (DNA or RNA) enwrapped by a protein
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Lecture # 1 Organic Chemistry- 1. It is a science that deals with the study of Carbon compounds but not all compounds containing under organic compounds. Non-Organic Compounds a. CO- Carbon monoxide b. CO2- Carbon dioxide c. CO3- Carbonates d. HCO3- Hydrogen carbonates e. CN- -Cyanides 2. There are over millions of compounds and inorganic is approximately 100‚000. 3. A science that deals with matter obtained from natural or living sources. 4. Study of Carbon Compounds
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PLANT CELL AND ANIMAL CELL LECTURER : ENCIK AZHAR GROUP’S NAME : 2. Mohd Alimi 3. Suraya Hani 4. Norhaswana CONTENT INTRODUCTION 3 WHAT IS CELL? 4-5 HISTORY OF CELLS DISCOVERY 6 ANIMAL CELL 7 PLANT CELL
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and animal cells have several differences and similarities. For example‚ animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed‚ rectangular shapes. Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One‚ large central vacuole taking up 90% of cell volume.
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correct. High Power should show only a couple of cells that take up most of the viewing field. The micoscope is designed to view the slide at different spots‚ so not all drawings will look like this one. Images were snipped from the virtual microscope’s flash animation. Scanning (4) | Low (10) | High (40) | 3. Go to google and type "cheek cells" into the search box. Click on "images" to see all the images google has found on the web showing cheek cells (there should be hundreds). What do all of
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1Organic Architecture View Full Essay Worldwide notoriety is a comment that would suggest Frank Lloyd Wright and the architecture that he left behind. This legendary American architect started a style of organic structures that remains a roadmap for the people of his genera today. His greatness not only remains by the buildings that he left behind‚ but through his school that he along with his wife started and his philosophy about designing. As a young child‚ Wright developed these characteristics
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Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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on The Negative Effects of Facebook on teenagers in Dhaka The Negative Effects of Facebook On Teenagers in Dhaka Submitted to: Ms. Dilruba Jahan Assistant Professor‚ Language Institute Submitted by: Kayafa Hossain ID-111 121 559 Sec-NJ Date of submission: 5.1.2013 5th January‚ 2013 Dilruba Jahan Asst.Professor Language Institute Subject: submission of Extended Essay Dear Madam I am pleased to submit you the report on “ The Negative Effects of Facebook on Teenagers
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