The effect of size on the effectiveness of diffusion Aim: To use agar blocks infused with 0.1 Molar sodium hydroxide (NaOH) and phenolphthalein to investigate the relationship between shape and surface area: volume ratio on the effectiveness of diffusion. Hypothesis: That for a cube of agar‚ the time taken for complete colourisation due to diffusion of HCl is directly proportional to the cubes volume. Materials: |A block of agar (10cm x 5cm x 3cm) with 0.1M NaOH and |1x 250mL
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Diffusion is the molecular net movement from a higher concentration to a lower concentration. For instance‚ when a person is smoking‚ the smoke diffuses into the air. The molecules in the smoke‚ released from the cigarette‚ travel through the air. Here is how it occurs. When molecules are close enough‚ they collide with each other‚ their kinetic energy changes. Due to the direct relationship between diffusion and molecular kinetic energy‚ the molecules move away from the point of the collision as
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Research Question Does the concentration of substrate (H2O2 (hydrogen peroxide)) have an effect on the activity of the enzyme (catalase)? Theory The higher the substrate concentration the more quickly product is produced (rate of reaction increases) until enzyme saturation is reached at which time more substrate has no further effect. Enzymes such as Catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. They are all
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Assignment front sheet QualificationUnit number and titlePearson BTEC Level 4 HNC Diploma Construction and the Built EnvironmentUnit 34 Structural Analysis and DesignStudent nameAssessor nameDaw Wuit Yi Win HtutDate issuedCompletion dateSubmitted on15th October 20147th November 2014Assignment titleAssignment (3) of (4) Structural Analysis and DesignLearning outcome (LO)Assess-ment CriteriaIn this assessment you will have the opportunity to present evidence that shows you are able toTask no.Evidence
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YOU DECIDE PAPER 2 Part I: Discuss the various forms of organization that are available to Penelope‚ Mark and John The various forms of organization available to Penelope‚ Mark and John are: GENERAL PARTNERSHIPS: A general partnership is a business organization formed when 2 or more individuals or entities form a business for profit. All partners share in the management and in the profits and decide on matters of ordinary business operations by majority of the partners or by percentage ownership
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Communication from WWII to Present Wars Communication on the battlefield is essential to victory. Without proper communication troops‚ supplies‚ and other necessities would not be readily available when needed. From soldiers on the front line calling for reinforcement or Predator drones being controlled by an operator thousands of miles away. Communications have changed the way we live and the way we kill. In World War II the Royal Corps of Signals (founded in 1920) duty was to operate and
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English 11 THW3 TTh 1:00-2:30 PM Prof. Kristine Marie Reynaldo CFQQ #3 1. “In a Station of the Metro” by Ezra Pound Comment: I am surprised when I saw the “poem”. I didn’t know it’s allowed to only have two lines. But I think it is pretty though. Simplicity and brevity is always beautiful. I like how he used the word apparition. Given that he’s in a transport station‚ faces appear and disappear from your sight as they hurry around. I think it’s the perfect word to use. Fun fact: In
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AVAILABLES In addition to bank loans there is a range of alternative sources of finance available. At same time‚ a loan from a bank might not be the best way forward for every business. THESE ARE THE MOST POPULAR ROUTES: 1. Own finance – one can choose to start his own business by using his own financial resources. This may be from savings accounts or other investments that he has. Typically‚ it is not advised that one should fund his start-up from personal overdrafts‚ loans or credit cards as
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Where as the active transport requires energy from the molecule to be moved. oFacilitated diffusion can only move in one direction from high concentration to low concentration‚ which is with the gradient. Where the active transport can move from both low concentrations to high concentrations‚ therefore it can move against the gradient where as the facilitated diffusion can not. The process of active transportation is when a molecule work together with the active side of a protein
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MULTIPLE DIMENSIONS OF DEVELOPMENT‚ CASE STUDY: ASIA Development is a multidimensional concept. It has several objectives and components. Development is not simply a process of growth but also of change. Development can no longer viewed just as rising income‚ but should be viewed as complex process of change which is inclusive‚ sustainable‚ equal and holistic. Development has many facets‚ of which major few are discussed below by concentrating on developing nations and Asia in particular. We
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