Diffusion, Dialysis Essay Example for Free

Diffusion, Dialysis Essay In Diffusion, Dialysis And Osmosis lab, we discovered that we were going to observe and understand the conditions under which diffusion, dialysis, and osmosis occur. Then we constructed models of diffusion, dialysis, and osmosis. We predicted that the direction of change would be from the membrane to the beaker. We understood how these processes affected the selectivity of the cell membrane. The second part of the lab was dealing with dialysis. In this part we studied starch and sodium chloride for dialysis activity. In Part A We hypothesized that NaCl existed in 1-3 and AgNO existed 2-4. In Part B We hypothesized that there will be more changes in the cell then outside the cell. In Part C We hypothesized that there will be a difference due to the different environments that are provide to help change the appearance of a molecule. Procedure A. Qualitative testing for sodium chloride and starch We got 6 clean test tubes and number them 1-6. Test tubes 12 had 5ml of 10% sodium chloride (NaCl). Test tubes 34 had 5ml of starch. Test tubes 56 had 5ml of distilled water. We added 2-3 drops of silver nitrate (AgNO )to 1,3,5. We added 2-3 drops of iodine solution to 2,4,6. B. Dialysis of a starch/sodium chloride mixture Get one dialysis tube and tie one end. Fill the bag with 5ml of 10% Sodium chloride solution and 5ml of starch solution from Part A. then tie the tube and place it in a beaker of distilled water. Leave the tube for 30 minutes. Afterwards test for the presence of starch and sodium chloride. Then split the solution into to test tubes and 2-3 drops of iodine into one test tube and 2-3 drops of AgNO in the other test tube. C. Osmosis using dialysis tubing as a model of the cell membrane Obtain 5 beakers and label them 1-5. Fill beakers 1-4 halfway with distilled water. And beaker 5 with 30% sucrose halfway. Obtain 5 dialysis tubes that will be filled with 10ml of different solutions. Tube 1 has distilled water, Tube 2 has 10% sucrose, Tube 3 has 20% sucrose, Tube 4 has 30% sucrose, and Tube 5 has distilled water. Tie the tubes and weigh each of them before placing them in there respected beakers. Every 15 minutes weigh the tubes to record the change. In Part B we found that outside test tube; salt existed and not sugar. But inside the test tubes both the starch and the salt existed in the two different tubes. In this part there weren’t any problems and we were successful in gathering the necessary results to move to the next section. This helping prove our hypothesis right because it meant that there would be more changes inside the cell than outside the cell. In Part C we found that Beaker 1 had no changes in weight. In Beaker 2 there were changes that ranged from 0-1. 1. In Beaker 3 there were changes that ranged from 0-2. 1. In Beaker 4 there were changes that ranged from 0-4. 8. In Beaker 5 there were changes that ranged from -2. 7-0. This is the results that my group gathered from another group that did well because our results were way off and inconsistent. So we were forced to use better results to find better explanations. We understood that the conditions under which osmosis is possible and to what degree it occurs. There were three different types of temperate environments. This helping prove our hypothesis right because it meant that different environments help change the appearance of a molecule.

Communication as the Key to Good Writing Essay -- Language Education W

Communication as the Key to Good Writing Writing as it exists in this world can be interpreted an infinite amount of ways. Some believe it to be communication, some self expression. Some believe that it is a tool to explain one self, others think it complicates things. Ultimately, writing is used for remembering things so that you can eventually communicate with yourself and others about what you thought at a previous time. If you can talk without confusing, then you can write without confusing. It is as simple as that. In order for someone to become a good writer, all that person has got to do is make sense of their feelings by writing them down in a fashion that is understood by those who one wishes to communicate with. That is, tell the people what you have got to say and explain it so that they can understand. If you do not, you fail as a writer because no one can understand you or what you are saying. If you want to be a good writer, you must make it so that the public can understand it. In order for a piece of writing to be taken by the public as good, a writer must make the literature seem real. If people do not believe it or believe that it could happen, then it is lost. Reality, though, does not mean if does exist or not. Instead it should seem as if it could exist or not. There has not been a sufficient amount of evidence to prove the existence of U.F.O.'s, werewolves, or unicorns but that does not mean that good literature cannot be written about it. It has. Of course, the subject covered in a piece of literature will not appeal to everyone, but you never really are talking to everyone anyway. To make the writing seem real, you should make it seem like you are talking directly to the reader in a believable fashio... ... relate to all the people of the time and for those who could not read, a public theatre was created to visually show the story. And what makes a good writer today? Well today's world is much different than Shakspeares day. Now their are thousands of excellent writers that no one hears about because there are so many different things to read. Every individual can find a piece of literature that can directly relate to them. There are books and magazines about each and every subject imaginable. And the reason for this success is because all of these writers know exactly what they want to write about and only those who wish to associate with the same subject will read it. This diversity can make anyone great in the same subject area as those who read it. These writers know what they are saying and can say it in a way that is believable, interesting, and realistic.

Response to Text Carlitos Way

Response to Text: Carlitos Way The film Carlito’s Way directed by Brian De Palma uses visual and verbal techniques to show the idea of world of crime. The main aspects of world of crime are loyalty, betrayal and can’t escape your past are all shown in the film. Together visual and verbal techniques are used to show the main idea of the film which is world of crime. An important idea in the film Carlito’s Way is the idea of loyalty. Loyalty is shown throughout the film by Carlito to his friends. Carlito played by Al Pacino shows loyalty to his friend Dave played by Sean Penn when he is going on the boat to help get Tony T out of Prison.The verbal technique dialogue is used to show the idea of loyalty. When Carlito is on the boat with Frank Tony T’s son Frank asks Carlito, â€Å"is this guy a friend of yours,† and Carlito replies ,â€Å"Yea, He’s a friend of mine,† this shows that Carlito is loyal to Dave even though they are in a situat ion where Carlito could go back to Prison, or worse he could die. Brian De Palma has used dialogue to show that in the world of crime loyalty is a big idea and when people are loyal to their friends then they will do anything for them even if it is a danger to their life.This show the Audience that Carlito is loyal to Dave for getting him out prison and feels that he owes Dave and he will pay him back in any way. This also shows in the world of crime you must also pay people back when you owe them. I’ve learnt from this that in the World of Crime I should be loyal to my Friends no matter what situation I am in. Another important idea in Carlito’s Way is the idea, can’t escape your past. The idea of can’t escape your past is shown by Carlito when he has just hit Benny Blanco down the stairs and is shown through the visual technique and verbal technique of lighting and voiceover.When Carlito is standing at the top of the stairs about to hit Benny Blanco the lighting on his face is red which shows Carlito’s dark and bloody past, he then hits Benny and there is a voiceover of Carlito saying â€Å"Dumb move, man. Dumb move. But it's like them old reflexes coming' back. † this reinforces the idea of can’t escape your past because that is what Carlito used to do in his past. Brian De Palma uses these to show that when you have got into the World of Crime you can’t escape even when you want to.This shows the Audience that you can’t escape the world of crime even if you want to start fresh as it will always drag you back in. I have learnt from this that you shouldn’t get in to the world of crime in the first place as you will never be able to get out of it once you are in, even if you try to get out. Another important idea in Carlito’s Way is the Idea of betrayal. This idea is the most important as it would be the most common in the world of crime. It doesn’t matter who is going to betr ay you, it could be your best friend or a family member they can still betray you if they think it’s going to benefit them.The idea of betrayal is shown by Pachanga when he betrays Carlito to Benny Blanco and is shown through the verbal feature Dialogue. When Carlito is at the train station and about to board the train Benny Blanco shows up and shoots him, Pachanga then comes and says ,â€Å"Hey no hard feelings Carlito. But I got to think about my future, too. You know, it is that way sometimes, papi. Come on, let's go,† Benny then says, â€Å"No you stay here,† and then kills Pachanga because he is no more use to Benny.Brian De Palma uses this feature to show that in the world of crime Carlito can be betrayed by anybody even one of his closest friends. This also shows that in the World of Crime someone can betray you just because they need to make some money and that it doesn’t matter if you have been friends your whole life. This shows the audience tha t betrayal is very common in the world of crime and can come from anywhere even your closest friends. I have learnt from this that in the world of crime you should trust no one as you don’t know who could betray you.In conclusion the visual and verbal features such as dialogue, lighting and voice over are all used to show the ideas of can’t escape your past, betrayal and loyalty which are all in the World of Crime. All the techniques together can show the viewer the ideas about betrayal and how anyone can betray you in the world of crime, the idea of loyalty and how you should be loyal to your friends in the World of Crime no matter what situation you are in and the idea of you can’t escape your past and when you get into the World of Crime you can’t get out even if you want to.Brian De Palma used these visual and verbal features to show the audience the world of crime and how it affects you in life. I have also learnt from this film that you should be lo yal to your friends but also be wary because betrayal could come from any direction whether it is friend or family and eventually your past can catch up with you.

Mozarts Requiem Analysis Essay - 1026 Words

Mozart’s Requiem is â€Å"one of the most performed and studied pieces of music in history† (Stango, n.d.). The story behind the start of this piece begins with Count Franz von Walsegg, who commissioned a requiem mass for his wife Anna (who had passed away). Throughout his work on this piece, Mozart began to get so emotionally involved with the piece that he believed that he was writing a death mass for himself. Mozart died December 5, 1791, with only half of the Requiem finished (through Lacrimosa). Franz Xaver Sà ¼ssmayr finished the Requiem based on Mozart’s specifications from notes and what he had already written. The completed work is dated 1792 by Sà ¼ssmayr and was performed for the first time on January 2, 1793. Mozart’s intent for this†¦show more content†¦Deliver them from the lions mouth. Neither let them fall into darkness nor the black abyss swallow them up. And let St. Michael, Thy standard-bearer, lead them into the holy light wh ich once Thou didst promise to Abraham and his seed† (â€Å"Full Text Lyrics,† n.d.). I was asked to explain why the Corni di Bassetto is the only instrument not in the key of Bb/g. This is because the Corni di Bassetto, a basset horn, is in F, a perfect fifth below concert pitch. Everything the Corni di Bassetto plays sounds a perfect fifth below the written note. Getting down to some smaller details, I have Neapolitan chords, nonchord tones, voice leading, sequences, elisions, and imitation to discuss. In measure 12, beat 1, there is a major chord built on the lowered second scale degree of C minor. This chord is a Db major. Following some research on this chord, I found that it is what’s called a Neapolitan chord, its name coming from its association with the â€Å"Neapolitan school† of 18th century Italian opera composers (â€Å"Neapolitan Chord,† n.d.). What is unusual about the one found in measure 12 is that it is not found in its common fir st inversion form, but rather in second inversion. This chord’s harmonic function is to prepare for the dominant. The fifth of the chord (Ab) usually resolves down a semitone to G (which is what happens in the bass part on beat 3). Another curious thing about thisShow MoreRelatedThe Problem Of Mozart s Requiem959 Words   |  4 PagesIn the last decade, the problem of Mozart’s Requiem has divided itself into three categories which most of the scholars have majored on in an attempt to come up with a clear analysis of the arguments and various evidence. The three main problems include the authenticity problem viewed in a narrower sense, the instrumentation problem and the dating problem. 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