Existence is a curious thing. One minute you can be happily floating in oblivion‚ the next you are plucked from the comforting darkness and blinded by all the gloriousness of consciousness. Well‚ that’s how it goes for most people anyway. Our hero was not brought into this world because of the love of a man and a woman. Our hero was brought into this world because of the hatred a man had for himself. When you first come into consciousness life stretches out before you with infinite possibilities‚
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BIOL 2010 ANATOMY AND PHYSIOLOGY I Chapter 4: TISSUES AND MEMBRANES Outline of Notes I. Introduction. A. General: Cells are highly specialized and interdependent on one another. Groups of similar cells performing similar functions are called Tissues The study of tissues is called Histology. Organs are made of tissues. A detailed understanding of tissues will greatly help your understanding of organs and organ systems later in this course. Tissues are classified into 4 main types:
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CHAPTER 6—Protozoa INSTRUCTIONS: Before answering the case studies‚ make sure you have read and understood chapter 6 of your textbook. ALL ANSWERS MUST BE SUBMITTED ON JANUARY 3‚ 2013‚ HANDWRITTEN ON A YELLOW PAD PAPER. IMPORTANT: Observe proper writing of scientific names. CASE FILE 1 A 25 y/o female patient consulted her doctor complaining of dysuria and foul-smelling vaginal discharge. She admitted to becoming sexually-active within the recent months. Microscopic examination of her urine sample
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Concentration The Problem In many colleges over 8% of the students report problems concentrating on their studies. Most of these students blame outside distractions for their problems. Many research studies manipulating noise levels and distractions have found that such disturbances may increase‚ decrease‚ or not even affect concentration. These researchers have therefore concluded that distracters don’t cause concentration problems directly. It is the way the distracters are interpreted
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Determining the Molar Mass of an Unknown Solute by Freezing Point Depression Introduction: Colligative properties of solutions are only influenced by the concentration of solute particles and are independent of the nature of the solute. Some examples of colligative properties are boiling point elevation‚ vapor pressure lowering‚ and freezing point lowering (depression) (Brown‚ 542). For a substance to freeze‚ the kinetic energy of the particles must be low enough for the
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Cell Membranes and Transport Hands-On Labs‚ Inc. Version 42-0033-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing
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Effects of Tonicity on Cell Membrane Abstract The purpose of this experiment was to determine the effects of tonicity on a cell membrane using red blood cells‚ potato strips and three unknown solutions (A‚ B‚ C). First three slides were prepared containing RBC’s and unknown solutions A‚ B and C. A control slide was prepared only using RBC’s. After observing each slide under the microscope it was determined that unknown solution A was hypertonic because the RBC appeared to have shrunk. The
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1) Hypertonic refers to _______. 1) _______ A) the concentration of solutes that a cell is bathed in B) a concentration of solutes that is less than the solutes inside the cell C) the concentration of solutes inside a cell D) a solution that will cause a cell to swell 2) What happens to facilitated diffusion when the protein carriers become saturated? 2) _______ A) ATP will be utilized for transport. B)
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PERMEABLE MEMBRANE Introduction: Molecules have kinetic energy. This causes the molecules of the cell to move around and bump into each other. Osmosis is a special kind of diffusion where water moves through a selectively permeable membrane (a membrane that only allows certain molecules to diffuse though). Diffusion or osmosis occurs until dynamic equilibrium has been reached. This is the point where the concentrations in both areas are equal and no net movement will occur from one area to another
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light to the properties of the material through which the light is travelling. In turn‚ absorbance is proportional to concentration and the higher the concentration‚ the higher the absorbance. This experiment incorporated Beer’s Law and is focused on determining the stress that various alcohols have on biological membranes. Using five solutions of differing alcohol concentration for each of the three alcohols; methanol‚ ethanol‚ and 1-propanol and a small slice of beet‚ the stirred solution was
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