Activity 1: Simple diffusion Introduction: Simple diffusion is the net movement of substances from a region of high concentration to a region of low concentration so its overall net movement is along the concentration gradient‚ simple diffusion does not require energy therefore it is ’passive’‚ substances are diffused across the membrane between the phospholipids. Materials and methods: * 20 mwco dialysis membrane * 50 mwco dialysis membrane * 100 mwco dialysis membrane * 200 mwco
Free Diffusion Molecular diffusion Osmosis
generally assessed on the basis of available commercial sources of energy i.e.‚ fossil fuel like gas‚ coal‚ oil etc. Worldwide‚ there is a major transition underway in the energy sector. Biogas can be a potential source of renewable energy‚ Residues from biogas also proven as a significant source of organic fertilizer. If there is proper policy and implementation‚ Bangladesh’s energy crisis and organic fertilizer demand can be control through biogas plant. 1. Introduction By 2020‚ the
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LEDs… Release only ONE color of light Produce very little heat What is an LED? They are semiconductor devices that can convert electrical energy directly into light due to the nature of the bonding that occurs in the semiconductor solid. Type of bonding is directly related to conductivity of solid. Bonding in Elemental Solids Electronegativity – the ability of an atom to attract electrons to itself. Atoms with low e.n. (metals) don’t hold valence electrons tightly valence
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¬¬¬¬¬ ENGINEERING STABLE PROT¬¬¬EINS Stable and soluble HIV spike proteins Appendix Abstract……………………………….................................................1 Introduction………………………………..........................................1 Structure and function of gp120 and gp41.…………………………2 Mutation 1……………………………….............................................5 Mutation 2.……………………………...............
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“Mommy‚ I want to be just like him. I want to wear a cool uniform just like him. And I want to throw and catch passes just like him.” These are the words of a young child watching professional sports‚ always wanting to grow up to be just like the professional athlete he is seeing. With professional sports players being such huge role models to kids these days‚ everything that a player does is watched over by young learning eyes. Kids see how they act‚ how they celebrate a touchdown‚ even… how they
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(Bread Mold Lab) Block 1 The materials needed to conduct this experiment are six small squares of bread‚ a container of milk‚ four small Ziploc bags‚ a thermometer‚ a phone to record data and a heat lamp. The container of milk will be used for residue on the inside of two of the plastic bags. The heat lamp will be used to generate heat onto the bread towards the possibility of mold. The thermometer is used to measure the heat that the heat lamp is producing; this is to make sure it does not get
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“Noooooo” i said as I walked into Ms. C Johnson’s classroom seeing a substitute standing outside. I thought today was going to be an okay day having to deal with her. “Alright class‚ today we will be having a intruder drill‚ this will consist of us doing what we are taught if this happens for real at this school at some point in the future. Does anyone know what to do and can help me with this?” the teacher said. “ I Can‚ I have been through this many times and at many different schools.” I Said
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or saliva-liquid or dried animal or human-present in a form to suggest in relation to the offense or the people involved in a crime. This includes blood or semen dried onto fabrics or other objects‚ as well as cigarette butts that contain saliva residue. These substances are subjected to serological and biochemical analysis to determine their identity and possible origin. 2. Documents- Any handwriting and typewriting submitted so that authenticity or source can be determined. Related items include
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shot is fired and its target. This is often done by looking at the patterns of powder residue and the shot pattern. When a gun is shot‚ traces of gunpowder travel out of the barrel of the gun with the bullet in the direction that the bullet is traveling in. If the end of the gun or muzzle is close to the target‚ some of this gunpowder residue will be transferred to the target. The pattern or distribution of the residue helps forensic scientists estimate the distance of the gun from the target. 4
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it was left over in the filter paper. 10. Based on my observation I think Residue A is not the same substance because when I added to filter paper it bubbled but when I added to residue A It didn’t react. 11. No‚ because the color of residue B changed after it was mixed with 10 drops of 15% HCl. 12. I think it was chemical because it’s not the same anymore‚ also effervescence occurred‚ when HCl was mixed with residue B. 13. At step 9 CaCl2 was separated from the CaCO3. 14. The hot plate makes
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