Cell Membrane Lab Report Essays

Cell Membrane Lab Report Essays Cell Membrane Lab Report Paper Cell Membrane Lab Report Paper Time (min) Total Diameter (mm) Distance of Diffusion * (mm) Rate (mm/min) * 15 30 45 Potassium Permanganate 5 Celsius Methyl Blue 5 Celsius Total Diameter (mm) Distance diffused = diameter of each reading minus initial diameter Rate distance in mm/elapsed time (min) Double click the chart below. A spreadsheet will open. Enter the data from the table above into the spreadsheet in the areas provided. When you are finished, click into another area of the lab report. The spreadsheet will close automatically. Do not close the spreadsheet with the X in the upper right corner. What effect did temperature have on the rate of diffusion? How did molecule size affect the rate of diffusion? What happens to the rate of diffusion over time? Why? What can you conclude from this experiment? II. Osmosis Osmosis EXERCISE 2 Osmosis demonstration After 15 minutes, record the volume change in each tube. Seismometer Dialysis Tube Contents Beaker Contents Volume Fluid Moved Direction of Movement 2 Describe the net movement of water in seismometer 1 . Describe the net movement of the water in seismometer 2. How is the movement of water molecules related to the concentration gradient of the water? EXERCISE 3 Effect of solute concentration on rate of osmosis Subtract the beginning mass from the final mass for each of the five bags. Record the difference in the table below. Double click the chart below to open a spreadsheet and enter the results from the table above to complete the graph. When you are finished with your work, click into another area in the lab report to close the spreadsheet (do not use the X in the upper right hand corner). For visual purposes the answer key shows the chart only from 10 grams to 22 grams. Your chart will begin at 0 grams. Answer the questions below based on data displayed in the graph above. Was the direction of net movement of water in bags 1 to 4 into or out of the bags? Which bag gained the most weight? Why? Explain the results from bags 4 and 5. Viewing the data you entered in the table above, summarize the results for each bag. Summary Tonic of Bag/Beaker 3 4 5 Ill. Permeability of Membranes EXERCISE 4 Differential permeability Tube 3 is tested for starch. Tube 4 is tested for chloride ions. Enter the data from the lab exercise into the table below. Contents of Beaker Contents of Bag O min 60 min Starch Chloride Ion Which substances diffused through the dialysis membrane? How does dialysis tubing model the differential permeability of a plasma membrane? What physical property of dialysis tubing allows it to be differentially permeable? IV. Tonic Tonic Hypotonic Isotonic Hypersonic Turgid. Polynomials. Lists Lased Hemolytic Hemolytic Creation A. Tonic in Plant Cells EXERCISE 5 Polynomials in Elodea cells Label which sample is turgid and which is polymerase (Answer 1 in each column). Label the cell wall, central vacuole, plasma membrane, and chloroplasts on each slide. For a more detailed view of the slides below, increase the document size to 150% using the drop-down feature on the toolbar or look under mom in the view options of the menu bar.

How To Say ‘Want’ in Spanish

How To Say ‘Want’ in Spanish The English verb to want can be translated to Spanish in at least five ways, the most common of them being querer. Using Querer When querer is used to mean to want, is can be used almost exactly the same way as the English verb. You should be aware, however, that querer is also a common way of expressing romantic affection, and Te quiero is a common way of saying I love you. Some examples of querer for want:  ¿Quà © quieres hacer? (What do you want to do?)Solo quiero verte. (I only want to see you.)Siempre quise un viaje al Perà º. (I always wanted a trip to Peru.)Quiero tres tacos y un refresco, por favor. (I want three tacos and a soft drink, please.)No queremos dinero; shopping argentina queremos justicia. (We dont want money. We want justice.)Los manifestantes quieren que el gobierno reduzca los impuestos federales. (The demonstrators want the government to reduce federal taxes.)Hace una semana quisimos las frutas, pero ahora no las queremos. (A week ago we wanted the fruits, but now we dont want them.) Querer typically is followed by one of three grammatical constructions: An infinitive, often translated to English as an infinitive (the verb form beginning with to). Infinitives in the first two examples above are hacer and ver (in verte).One or more nouns. The nouns serving as objects of querer are viaje in the third sentence, tacos and refresco in the fourth, and dinero and justicia in the fifth. Alternatively, a pronoun can be placed before the verb, as in the second half of the final example.The relative pronoun que followed by a clause that uses a verb in the subjunctive mood. Reduzca is in the subjunctive mood in the fifth example. Using Desear for 'Want' Because querer is conjugated irregularly, beginning Spanish students instead often use desear, which is used in the same way as querer. However, desear is used less often and is more formal; in many situations it can sound overly flowery, which is one reason it seems common on Spanish-language greeting cards. Desear can have romantic or sexual overtones in some contexts (it comes from the same origin as the English verb desire), so you should exercise caution when using it to refer to people. Deseo aprender sobre este curso. (I want to learn about this course.)Desean el regreso de las libertades, la llegada de la democracia. (They want the return of liberty, the arrival of democracy.)Deseo que tengas un buen dà ­a. (I want you to have a great day.) Using Pedir for 'Want' When want refers to asking or requesting, it is often best translated using pedir:  ¿Cunto pide ella por su coche? (How much does she want for her car? Literally, how much is she asking for her car?)Pedimos un empleo de alta calidad. (We want a high-quality employee. Literally, we are asking for a high-quality employee.)Piden 900 pesos por dà ­a por una sombrilla en la playa. (They want 900 pesos per day for an umbrella on the beach. Literally, they are asking for 900 pesos per day for an umbrella on the beach.) Using Buscar for 'Want' If want could be replaced by look for or seek, you can use buscar. Te buscan en la oficina. (Youre wanted at the office. Literally, theyre looking for you at the office.)Muchos estadounidenses buscan casa en Mà ©xico. (Many Americans want a house in Mexico. Literally, many Americans are looking for a house in Mexico.)Todos ellos buscan trabajos que puedan proveerles la oportunidad de aprender. (They all want jobs that offer them the opportunity to learn. Literally, they all are looking for jobs that offer them the opportunity to learn.) Translating an Older Use of 'Want' Although not common in modern English, want is sometimes used to mean need. In such cases, a verb such as necesitar or a negated use of  faltar can be used in translation.  ¿Necesitas dinero? (Are you wanting for money?)El Seà ±or es mi pastor, nada me faltar. (The Lord is my shepherd, I shall not want.) Key Takeaways The most common Spanish verb for to want are querer and desear, which typically are followed by an infinitive, a noun, or que and a verb in the subjunctive mood.When want refers to asking for or requesting something, pedir can be used.When want refers to seeking or looking for something, buscar can be used.

Pop Art and Photorealism Essay Example | Topics and Well Written Essays - 500 words

Pop Art and Photorealism - Essay Example Photorealism, although a product of the much larger pop art movement during the 60s, had another aim during creation. The artists first took photographs of a place or event and then back in their studio the artist replicated the photo onto canvas. The paintings coming from photos were highly realistic and appealing. These artists differed from traditional pop artists in that they did not use already published material and superimpose it to a painting. Instead, the painter was intimately familiar with the location as the painter was also usually the photographer. Photo realism was not about the mockery of life, but more the enjoyment and wonderment of the ordinary. Anything could be ordinary, but when looked upon a different way, it became something new. While pop artists were able to use relatively any media for their paintings, photo realists had a specific set of rules on what constituted a photorealism painting. These five guidelines set about what it meant to be an originator of the movement. Due to these rules, only a select few could be considered founders of the movement. Artistic movements evolve and die out as new methods present themselves. Pop art, while extremely popular during the 1960s, has faded from popularity. Photo realism, on the other hand, gained popularity with its lifelike paintings and representations of life. Many remember Andy Warhol, while there are not that many photo realists that are household names. This is due to the fact that what pop artists did caused people to remember for days.

Integrity Essay Example | Topics and Well Written Essays - 250 words - 5

Integrity - Essay Example Some leaders strictly abide by this value; but some, by internal or external factors, are led to be swayed into violating ethical and moral codes of conduct and behavior. The most important integrity competency for an organizational leader is acting consistently with principles, values, and beliefs – which include those stipulated by policies and principles of the organization; because they are expected to abide by the overall goals and interests of various stakeholders who are expected to be governed under these standards. For a political leader, the integrity competency of keeping promises is paramount because they had been voted by the public to serve through advocacies and political platform which had been formed and communicated through plan of action and promises of performance. Finally, a spiritual leader is expected to abide by the integrity competency of telling the truth based on religious doctrines and teachings of the faith so that their followers would be enjoined to practice what they preach. I strongly believe that since one has developed personal values and interests, it would naturally be exuded and adhered to in whatever scenario, setting, or role that one assumes in life. Thus, whether one becomes a follower or a leader, the same set of values and interests would be manifested and applied. As a leader, the advice that I would give others to help them stand up for their values and interests would be to develop values that are consistent with moral, ethical and legal standards and to remain steadfast in conforming to these values. By doing so, leaders and followers would be assured that a sense of integrity is maintained and sustained and one’s image as a person with integrity would never be

Life, Death, and Frankenstein Essay -- Frankenstein Essays

Life, Death, and Frankenstein Since I spent last weekend in Vancouver attending the funeral of a beloved aunt who died on Good Friday, you could say that I've been pondering a lot about death and dying lately. It didn't help either that I chose to bring my copy of Mary Shelley's Frankenstein with me to read on the plane rides there and back, seeing as this story deals with the creation of a new form of life and the deaths that result from it. Being in this rather morbid frame of mind, I decided for this commentary just to take a closer examination of life and death as contained within the kind of gothic narrative of this early science-fiction horror story. It's almost like a Yin-Yang pairing between the two: Victor controls the ability to create Life (an ability that is usually looked on as being feminine) through his scientific and medical knowledge, and the Creature controls the ability to create Death (an ability usually looked on as being masculine) through his incredible strength and physical abilities. But although the Yin-Yang of Taoist thought brings harmony to the universe, this pairing of light and dark brings nothing but destruction to those it touches. So, in Frankenstein, I suppose you could divide the death into two different categories, both centered around Victor: Life from Death, and Death from Life. "To examine the causes of life," Victor tells us through Captain Walton, "we must first have recourse to death." And so he does. After Victor discovers the secret to creating life (what it is we are never told, but if you're inclined to believe the various cinematic treatments of the story, it seems to involve lightening storms and complicated machines), he decides to put this to use and see if he can play... ...ankenberry Cereal available for sale, with cartoonish pictures of Boris Karloff smiling on the front. While they may hold opposing powers of Life and Death respectively, in the end, it is as though neither of these two characters is left with any life between them. Everyone Victor has loved is dead because of the attacks inflicted by his creation. The Creature is not accepted by society because of the appearance given to him by his creator. Neither of them having anything left to live for; they engage in a chase up to the high Arctic where the Creature and the body of his creator disappear into the night. With each of them trying to out-manoeuvre the other, each destroys what his opposite desires the most. In this Life from Death, nothing can lead a true existence. Works Cited: Shelley, Mary. Frankenstein (1818 ed.). New York: W. W. Norton & Company, 1996.

Mental Illness and Crim Behavior

A study done in 1999 shows that out of the three million arrests made, we can see that no specific race, economic group, or gender group is the cause for such a high number of arrests. In the reading it seems as if criminal behavior is spoken about as a means to satisfy ones needs in order to make up for something that they lack. For example in the reading it explains how young adults are often frustrated with their lives regardless of race or economic status, they will find a way to take their frustrations and lash out. This is to say that no matter how â€Å"normal† or â€Å"bizarre† the criminal’s mind seems to be, the criminal still has comprehension and attention to detail of the crime they have been involved in and so they cannot be claimed as â€Å"mentally ill†. Contrary to these findings, one might argue that even though crime is not necessarily a â€Å"race† or â€Å"economic† factor but it does play a role in one’s life (environmental factors). In general it is known that criminal behavior is both an individual and social problem. Some crimes are plotted and carried out while others seem more of a compulsive act. Either way, these crimes require â€Å"logic and self-control†, as it says in the reading. (Page 26) This reading further suggests that no matter how out of the norm a criminal act mat be, the offender has a complete understanding and awareness of the crime and their actions that go along with carrying out the crime. This defeats the groundings of the insanity or the mentally ill but guilty defense. However, after looking back at the reading, one may question the statements made because they seem to one sided in that they are not exploring the idea of a criminal who is mentally ill and just exploring the idea that society is the cause of criminal acts. One statement that is made which stands out is when it is said that â€Å"crime is not contagious like the chicken pox†. While it stands true that just because one person in a community decides to partake in criminal behavior, it does not mean to say that others will soon begin to engage in similar behavior simply because they are close to that initial person. However, when it comes to people who are mentally ill the crimes they commit are a type of â€Å"chicken pox† in that certain mental illnesses cause certain types of crimes so that it is sometimes detectable based on one’s behavior if they are going to commit a crime linked to their mental illness. Also, if a criminal with a mental illness is put into the general population of a correctional facility, they may be influenced by others and their behavior to act in a way similar to those they had contact with. Although the environment of a person often determines their behavior, logic, and emotions their DNA or pre-disposed conditions also play a role. Referring back to the example given on page 27, a man who murdered his wife in the heat of an argument would not be considered for the insanity defense because of his â€Å"temporary insanity† through a violent crime of passion. To Samenow, this person was not â€Å"seized by an alien† or had an â€Å"uncontrollable impulse† and so this man was not out of character for committing this crime because according to Samenow he had voiced in the past that he had wished her dead or that the man often held vendettas against those who crossed him. Samenow then shows a case in which a man with worse problems (his wife cheating on him), did not seek revenge in this way and chose to act rationally by petitioning for a divorce. According to Samenow the first case exhibits a man not with a mental illness but with a social/personal problem whose environment forces him to choose to act in such a way. Although compelling it can be argued that this instead is an example of a man who is able to portray or mimic what the â€Å"norm† is and can appear to be functioning normally despite having there be a severe mental illness such as a personality disorder in which he engages in purposeful malicious behavior (pushing his wife, seeking revenge for those who harm him) and may actually be more harm to himself than others before murdering his wife. This person may be highly charming, intelligent, and able to be very put together meanwhile internally he cannot cope with the environment around him and so he creates this persona of the person who others expect him to be. This is a person who suffers from a major mental illness and will not be able to emotionally understand their crimes or the logic/morality for why it is wrong. Although having a mental illness may for an individual to act in a certain way, it does not excuse their actions and they should have consequences just as any other person would. However, a person with a mental illness should be held to a different level of responsibility since they already cannot cope with their lives which is why they acted in such a way to begin with. A criminal with a mental illness should be put into therapy to allow them to gain techniques to cope with life and with situations which cause them to act out along with an incarceration sentence.

Theory Of Games And Economic Behaviour - 968 Words

Although rationality provides the foundation for behavioural decision theory, current findings suggest that heuristics and biases have a significant impact on individual decision making. Rationality can only go so far in explaining individual decision making. A large part of early research into decision theory was based on the economic or normative approach, which tries to predict the actions of a so called ‘rational decision maker’. Although Bernoulli (1738) was the first to introduce the concept of utility into decision making, it was Von Neumann and Morgenstern’s book, ‘Theory of Games and Economic Behaviour’ which revolutionised the idea of a rational decision process. Von Neumann and Morgenstern (1947) explicitly outlined the†¦show more content†¦In contrast, EU theory suggests people have different attitudes toward risk – some would be risk averse and prefer the guaranteed payment, even though the expected value is lower, while others would choose the riskier bet. However, EU Theory and the normative approach to decision making are not without criticisms. As with every mathematical model, EU theory is a simplified representation of reality and does not guarantee reliable predictions o f human behaviour. Indeed, empirical evidence suggests the existence of systematic deviations from rationality. As Dawes (1988) wrote, â€Å"People, groups, organizations, and governments make choices. Sometimes the consequences of their decisions are desirable, sometimes not† (p. 2). Hence it can be argued that decision making is not purely rational (where rationality is defined as the decision predicted by EU Theory). In in attempt to create a more psychologically accurate description of decision making, Kahneman and Tversky (1979) developed Prospect Theory, which theorized that individuals have different perceptions when considering losses versus gains. In contrast to EU Theory, which suggests we make decisions that maximise our utility, research by Kahneman and Tversky (1979) found that information is not processed in such a rational way. For example, according to EU Theory, the amount of utility gained by receiving $200 should be equal to receiving $300 and losing $100 as in both situations