1. In the plasma membrane‚ the phospholipid heads A) are hydrophobic and face outward towards the aqueous solution on both sides of the membrane B) are hydrophilic and face inward‚ shielded from water C) are hydrophilic and face outward towards the aqueous solution on both sides of the membrane D) are hydrophobic and face inward‚ shielded from water Points Earned: 0.5/0.5 Correct Answer(s): C 2. The function of chloroplasts is A) lipid synthesis. B) intracellular digestion
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grind lenses‚ make simple hand held microscopes and began to study them. Antonie is known for making over 500 microscopes back in his day but only 10 survived today. They were all mostly basic ones with a powerful glass mounted in a tiny hole. They are definitely not like
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the number of yeast cells per cm3 that counted using haemocytometer under microscope. Aim To investigate the effect of the different dilutions of yeast cell suspension on the number of yeast cells per cm3 that counted using haemocytometer under microscope. Research Question Do the different dilutions of yeast cell suspension affect the number of yeast cells per cm3 that counted using haemocytometer under the microscope? Introduction “The typical yeast cell is approximately equal in size
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be testable. Feedback Your answer is incorrect. Question 5 Correct Mark 2.00 out of 2.00 Flag question Question text A high-powered microscope that produces an image from scattered secondary electrons is the Select one: a. immunofluorescence microscope. b. confocal microscope. c. bright-field light microscope. d. scanning electron microscope (SEM). e. transmission electron
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surgical operating microscope in dentistry was done as early as 1986 by selden‚ it was no until the early 1990’s that the DOM was introduced into the profession and graduate level endodontic programs. These revolutionary instruments have taken endodontic surgery to another level of sophistication “the microsurgical approach”. Microsurgery is limited to a surgical procedure on exceptionally small and complex structures with the aid of an operation microscope. The microscope allows the minimizing
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BTN 211 TOTORIAL 1 Chapter 1 1. The History and Scope of Microbiology Which of the following distinguish the field of microbiology from other fields of biology? a. the size of the organism studied b. the techniques used to study organisms regardless of their size c. both the size of the organism studied and the techniques employed in the study of organisms d. neither the size of the organism studied nor the techniques employed in the study of organisms regardless of their size Who of
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Presented By : Karim A. Zaklama 92-1509 Sci. 453-01 24/2/96 Objective: To test a sample of laboratory prepared bacteria and categorise it according to Christian’s gram positive and gram negative classes and also by viewing it under a high powered microscope and oil immersions; classify its shape and note any special characteristics. Introduction: Bacteria was categorised into two groups in 1884 by the Danish Bacteriologist Christian‚ gram positive and gram negative by a staining technique where
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Osmosis in Red Onion Cells By: Youssef Gharib Brief Description of Osmosis in Red Onion cells: Osmosis is the diffusion of water from an area of low concentration to an area of high concentration across a semi-permeable membrane. The purpose of this lab is to compare the three different types of solutions affect on the relative size of the vacuole to the cell‚ the outer membrane of onion red cells (tunics) are used to figure out the different types. In the red onion you can see effects promptly
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NT1310 Unit 10 Lab 1 05/28/13 Building A New Structure- Problem Analysis Troubleshooting fiber Fiber optic cable was once reserved for high-performance needs‚ but today it’s turning up in all kinds of networks. If you’re familiar with copper cable‚ you’ll quickly discover that fiber optic cable is a completely different animal. Not only is the installation process different for fiber‚ but also the troubleshooting process. Fiber optic cable is also far more fragile than copper cable‚ so there
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a light microscope with the magnification of 100x and 400x. Objective: To understand the structure of plant cells and animal cells. To study the structure of cells under different magnifications. To differentiate between the structure of plant cells and animal cells. To learn the steps and techniques to use a microscope. Materials: Potato‚ onion‚ cheek cell‚ distilled water‚ iodine solution‚ filter paper‚ toothpick and methylene blue solution. Apparatus: Knife‚ light microscope‚ glass slide
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