Caroline Phillips Lab 3: The Cell Purpose During this lab I hope to acquire a complete understanding of the makeup of the cell and all of its functions. Hypothesis If I complete this lab‚ then I will have a full understanding of the topics covered in the chapter “The Cell” and will have a complete understanding of the makeup of the cell and all of its functions. Materials & Methods Materials: “Human Anatomy & Physiology ninth edition” Elaine N. Marieb; Katja Hoehn Methods:
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Sample Report The Power to Understand. 800-211-8378 • PsychCorp.com Technical Report for DAS-II and WIAT-II (School Age Battery) Examinee: Age: Date of Birth: Examinee ID: Gender: John Sample 8 years‚ 5 months 2/11/1999 1 Male Report Date: Grade: Ethnicity: Examiner: 7/19/2007 Not Specified White not Hispanic Origin Sandra Behrens Spanish Home Language: Dominant Language: Translation Used: Test Administered: DAS-II (1/11/2007) WIAT-II (1/11/2007) Handedness: School: Teacher: Age at
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The Cell: Transport Mechanisms and Cell Permeability 1. Molecular motion: A and D 2. Velocity of molecular movement: B and C 4. Size of pores. Solubility in the lipid portion of the membrane and/or presence of membrane “carriers” for the substance(s). 5. Glucose- (a) move into the sac Albumin- (c) no movement Water- (b) move out of the cell NaCl- (a) move into the celll 7. Hypertonic- C- crenated Isotonic- B Hypotonic- A- hemolysis‚ bursting open due to swelling
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1a. Two reasons that the mass of the bag levels off with time include (1) equilibrium and (2) hydrostatic pressure. Equilibrium refers to the concentrations becoming equal. If there is no longer a higher concentration and lower concentration between the water and sucrose‚ osmosis can no longer take place. Osmosis can only occur when water is traveling from a higher concentrated area to a lower concentrated area. Hydrostatic pressure occurs when the bag reaches maximum capacity. Water will enter the
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Diffusion in Cells Isabel Zak Question: How does the size of a cell affect the distribution of chemicals throughout the cell? Hypothesis: The larger the cell is‚ the more difficult it will be for the chemicals to reach the centre of the cell‚ and diffuse throughout it. This is because there will be a higher surface-area to volume ratio in the larger cells‚ making the centre of the cells further away from the surface. Therefore‚ when dipped in sodium hydroxide‚ the larger cells will not
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Question: Do all liquids diffuse in the same way? Purpose: The purpose of this experiment was to find out if all liquids diffuse in the same way. Hypothesis: If different liquids diffuse‚ then the process will not be the same because liquids are made up of different molecules‚ with different densities‚ the diffusion will take longer/shorter than others. Materials: 1 plastic dropper with rubber top (medicine dropper) 3 glass beakers (400mL) 1 graduated cylinder (500mL) 4 drops of red
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Problem What effect does the different concentration of hydrochloric acid have to the rate of diffusion of agar that is dissolved with sodium carbonate and phenolphthalein? Introduction Diffusion is a process where the molecules intermingle as a result of their kinetic energy of random motion and is the net movement of like molecules down their concentration gradient‚ which is the energy inherent in their constant molecular motion makes them collide and careen outward from the region of higher
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ACTIVITY 1: Simulating Dialysis (Simple Diffusion) Answers 1. The molecular weight of urea is approximately 60. Which of the membranes can it pass through? a. 50 MWCO membrane b. 100 MWCO membrane c. 200 MWCO membrane d. Both the 100 and 200 MWCO membranes D. Both the 100 and 200 MWCO membranes 2. True or False: A solution containing glucose will diffuse faster through a 200 MWCO membrane if it is heated. True 3. The molecular weight of carbon C is 12; the molecular weight of hydrogen
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Exercise DP.1: Estimating Pure Component Properties in Hysys Workshop Report Requirements: 1. Create a graph of the vapor pressure in psia of cyclohexanol‚ cyclohexanol and high boiler as a function of temperature from 50 to 450 F. Print and submit these graphs. 2. Compare the pure component critical properties ( Critical Temperature‚ Critical Pressure) given in the design problem statement against the values used by Hysys. ( To view properties of a component‚ View the Basis Environment
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"Diffusion - How atoms move through solids" Diffusion means mass transport by atomic motion. The mechanisms of Gases & Liquids is known as random (Brownian) motion and for solids is known vacancy diffusion or interstitial diffusion. Simply we can define diffusion as‚ the movement of particles in a solid from an area of high concentration to an area of low concentration‚ resulting in the uniform distribution of the substance. (Diffusion chapter 5‚ 2008‚ p.1) Ronald D. Kriz(1999) suggests that
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