Osmosis & Diffusion Review Sheet Name: Fill in the Blank away low high hypertonic hypotonic diffusion molecules osmosis vacuole water solute permeable towards semi-permeable concentration gradient 1. The cell membrane regulates and controls what kind of molecules ______ move in & out of the cell. 2. When molecules spread from an area of high to low concentration‚ it is called _Diffusion_____. 3. As molecules diffuse‚ they create a _concentration gradient_____
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Lipids and Phospholipids The main role of phospholipids is that they can form lipid bilayers. It is an amphipathic molecule. The head which is hydrophilic contains a group of phosphate‚ a diglyceride and a simple molecule e.g. choline. The tail is hydrophobic and is made up of fatty acids. Phospholipids receive and transmit signals across the cell membrane and act as a store room for energy. The main role of phospholipids is that they can form lipid bilayers. It is an amphipathic molecule. The
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are in an area‚ the more collisions there will be. These collisions cause molecules to push away from each other. So‚ over time‚ the molecules of a substance will continue to spread out. Eventually‚ they will be spread evenly throughout the area. Osmosis is the diffusion of water. (when “the substance” that is diffusing is water)
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doctor…” – Beneatha‚ A Raisin in the Sun I used this quote to support my idea because she is telling everyone that she is going to be a doctor no matter. “thank everybody! And forgive me for ever
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While Antigone by Sophocles and A Raisin in the Sun by Lorraine Hansberry are very difference stories they have many similarities. Antigone is the about daughter of Oedipus trying to do what she believes is good. Her brothers have killed each other and while one gets a proper burial‚ the other is left to be eaten by wild animals. The reason he is not allowed to be buried is because King Creon believes he is unworthy of it. The main character Antigone defies Creon’s law and buries her brother anyways
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Music in both “Heart of Darkness” and “A Raisin in the Sun” shows itself only briefly‚ but its relevance holds out longer than any framata ever could. Beneatha in “A Raisin in the Sun” expresses interest in learning to play the guitar. However‚ this is after pursuing a multitude of different hobbies and activities. When she is asked why she wants to learn how to play the guitar‚ she responds with: “I just want to‚ that’s all...I experiment with different forms of expression” (Hansberry 47-48). Beneatha
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Science Lab Report INTRODUCTION |NAME: LORRAINE |LAB PARTNER: KAREN HO | |LAB EXPERIMENT: TESTING OSMOSIS WITH A POTATO |LAB DATE: NOV. 23rd / 2012 | |CLASS: Y-11-C |PERIOD:C | OBJECTIVE The weight of the potato slices will increase‚ decrease‚ or remain
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2017‚ I attended a play called A Raisin in the Sun. The play took place at the Polk Theatre at the Tennessee Performing Arts Center in Nashville‚ TN and it was directed by Rene Copeland. A Raisin in the Sun was written by a woman named Lorraine Hansberry. The play is a reflection of Lorraine Hansberry’s childhood experience. She was the first African American woman to write a play that was performed on broadway. At the age of 34 she died from cancer. A Raisin in the Sun was a play that gave multiple
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Diffusion and Osmosis Lab Introduction • What molecules can pass through a semi-permeable membrane? In this lab study we tested carbohydrates such as starch and glucose‚ as well as solutions like Benedict’s and Lugol’s to see if they would cross the membrane of a cell but since we can’t actually see that happen we used dialysis tubing (acts as the cell membrane). • My prediction was that glucose and Benedict’s could pass the semi-permeable membrane but starch and Lugol’s wouldn’t be able to
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Laboratory Report on Urine Examination Introduction: When testing urine the test results may provide information regarding the status of carbohydrate metabolism and kidney function. The kidney glomeruli act as ultrafilters for the plasma protein; however as much as 150 mg/dl of protein may normally be excreted into the urine. In glomerular proteinuria‚ an increase in glomerular permeability occurs‚ resulting in an increase of urine proteins. High urine protein concentration therefore may indicate
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