plant and animal cells are placed in a hypotonic environment‚ osmosis will occur. The structure of these cells determines the response to the difference in gradient‚ whether this be lysis (the explosion of cells due to the sudden increase in water pressure within the cell) in animal cells or turgor pressure (the pressure created by the increase in water pressure within the cell) in plant cells. Turgor pressure prevents further osmosis‚ which causes the water potential outside the cell to be lower
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Hypothesis Enzymes must be kept at certain conditions to function at its optimum level. Indeed‚ factors that may cause the enzyme to denature are: pH‚ temperature‚ and salt concentrations. When an enzyme is denatured‚ it can no longer bind to the active site‚ and therefore cannot carry out its functions. Therefore‚ adding pH buffer to amylase will affect the enzyme’s function upon its addition to starch‚ which can be indicated by the iodine test. In fact‚ if the enzyme is denatured by the pH buffer
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Lab Report Diffusion is - One of two kinds of passive transport‚ - Diffusion can transport ions from higher concentration to lower concentration region without any other forces. - A net movement of molecules in and out of cell membrane - Diffusion can be affected by the steepness of the concentration gradient. Lab question: Is the rate of diffusion influenced by the presence of second molecule? Prediction: the rate of diffusion is influenced by the presence of second molecule
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EXPERIMENT NO. 1 INTRODUCTION TO LAB INSTRUMENTS. 1. BREADBOARD We should be familiar to the following things about a breadboard: * What is a breadboard and what is it used for? * How does it work? * Setting Up. * Limitations. What is a breadboard and what is it used for? A breadboard (or protoboard) is usually a construction base for prototyping of electronics. The term "breadboard" is commonly used to refer to a solderless breadboard (plugboard). It was designed by
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cross the membrane‚ giving us a glucose level in the distilled water and Lugols. Since the glucose went from a higher concentration to a lower concentration‚ that is why the molecular transport was diffusion. The passive transport gave us a larger amount of glucose in the solute and a smaller amount in the solvent. Osmosis also occurred‚ because the water molecules were able to get past the permeable membrane giving us a larger volume in the dialysis bag‚ then what we started
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Computer Simulation of Cell Transport Mechanisms and Permeability: Passive Processes and Active Processes Introduction In this lab we will establish a difference between the two types of cell transport mechanisms and their permeability. The first type of cell transport is passive processes which are driven by concentration or pressure differences in the interior and exterior of the cell. The second type is active processes which use energy known as ATP to power the transport. There are two main
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Facilitated diffusion is similar to simple diffusion in the fact that it transports solutes from an area of high concentration to an area of low concentration; however it differs from simple diffusion because for the solute to pass‚ a protein transporter is required. 2. The increased number of glucose transporters allowed for an increased rate of glucose transport because more glucose molecules were able to bind to the transporters at the same time‚ thus allowing for
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The properties of dibenzalacetone make it a great substance to be used when protecting the skin from the sun. In the experiment performed‚ dibenzalacetone was created from an aldol condensation of 2 portions of benzaldehyde and acetone in sodium hydroxide. The reaction that occurred in this experiment is known as a specific aldol condensation called Claisen-Schmidt. In the reaction‚ the carbonyl of benzaldehyde reacts quickly with the acetone anion to create a hydroxyketone that dehydrates in the
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ATSB TRANSPORT SAFETY INVESTIGATION REPORT Aviation Occurrence Report 200501977 Final Collision with Terrain 11 km NW Lockhart River Aerodrome 7 May 2005 VH-TFU SA227-DC (Metro 23) ATSB TRANSPORT SAFETY INVESTIGATION REPORT Aviation Occurrence Report 200501977 Final Collision with Terrain 11 km NW Lockhart River Aerodrome 7 May 2005 VH-TFU SA227-DC (Metro 23) Released in accordance with Section 25 of the Transport Safety Investigation Act 2003. Published by: Postal
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Transport Systems Essay In single celled organisms‚ nutrients‚ water and various substances that are need for basic cellular processes can easily be transported in and out through the cell membrane. This is an effective transport system for microscopic organisms‚ but multicellular organisms require a more complex transport system to sustain itself. Take humans for example; unlike a cell‚ only the outer layer of skin is in contact with the body’s outside environment. It’s not possible for substances
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