Investigation of the point of incipient plasmolysis of onion cells (Allium cepa) using NaCl (Sodium Chloride) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M Design Research Question (Aim): The aim of this lab was to determine the point of incipient plasmolysis of onion (Allium cepa) cells using Sodium Chloride (NaCl) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M. Hypothesis: When the water concentration of a solution outside the cell is lower than the concentration inside the cell
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concentration of free energy. (http://en.wikipedia.org/wiki/Osmosis) Plasmolysis plays an important role in Osmosis. It is the process in plant cells in which the cytoplasm is extracted away from the cell wall due to the loss of water via osmosis. This process occurs in a hypertonic solution. When a plant cell is in a hypertonic solution‚ the water in the cells move to a region of higher solute concentration. (http://en.wikipedia.org/wiki/Plasmolysis) This results to the cell shrinking and in doing so; it becomes
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sucrose solution would cause “Incipient Plasmolysis”. Theory Plasmolysis is the result of a (in particular) plant cell which has lost vast amounts of water. When this happens‚ turgor pressure within the cell has decreased to the point where the cytoplasm of the cell membrane peels away from the cell wall. When this begins to happen it is called Incipient Plasmolysis and when the cytoplasm is almost completely gone it is call “full/complete” Plasmolysis. Plasmolysis is only possible if the cell
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Bella Nelson 11/25/12 Regents Biology 3BCD Osmosis and Plasmolysis Problem: What is the effect of Osmosis on a chicken egg? What is the effect of different solutions with various concentrations on plant cells? Hypothesis: 1. In an animal cell in a hypertonic solution the egg will swell‚ in a hypotonic solution the egg will swell. 2. In a plant cell in a hypertonic solution it will shrink‚ and in a hypotonic solution
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OBSERVING PLASMOLYSIS IN ONION CELLS (_ALLIUM CEPA_) I. INTRODUCTION Plasmolysis is the process in plant cells in which the cytoplasm is separated from the cell wall as a result of water loss through osmosis. Osmosis is a type of passive transport involving movement of water molecules across a partially permeable membrane. 1. RESEARCH QUESTION How does 15% NaCl solution affect the appearance of onion cells? 2. HYPOTHESIS If onion cells are submerged in solutions of NaCl of different concentrations
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Virtual Child Paper #4 Columbia College Describe any physical or behavioral signs of incipient puberty‚ including changes in physical appearance‚ behavior or emotions at ages 12 and 14 years. During the ages of puberty there are quite a few changes that start to occur in boys and girls that. Children bodies began to rapidity change and they began to experience different emotions and feelings. Changes in males include Facial and body hair‚ a deeper voice‚ and changes in the male
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need to define it.” Critically analyse this assertion in light of the problems associated with the precise definition The study of religion may be as old as humankind itself according to one author. Defining religion is difficult as there are many definitions as there are many authors. The word religion is the most difficult to define because of the lack of a universally accepted definition. Specifically the root meaning of the word religion can be traced to Latin. Relegare or religion means to
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punishment from a court standing. While the one raised in a bad environment would possibly say punishment of extreme measures like death for example. The problem with right and wrong‚ like I stated before‚ there can be no real correct answer. My definition of right‚ probably agrees with mostly everyone. My
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are considered insanity. In modern usage insanity is most commonly encountered as an informal unscientific term denoting mental instability‚ or in the narrow legal context of the insanity defense. In the derivation of the word insanity lies its definition. In English‚ the word sane derives from the Latin adjective sanus meaning healthy. The word insanity was first used in the 1550s. Naturally the word insane means unhealthy. From Latin insanus meaning mad‚ insane‚ then comes the root of in meaning
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What does it mean to be an educated person? According to Merriam- Webster’s Dictionary definition‚ to be educated is someone who has learned how to acquire‚ analyze‚ synthesize‚ evaluate‚ understand‚ and communicate knowledge and information. I believe that being well-educated means‚ you need to have a degree in a specific field and also be able to excel and easily adapt to a different field with substantial amount of knowledge to it. For some people‚ being educated means you need to have a college
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