Experimentation Essay Example for Free

Experimentation Essay Cell Transport Mechanisms and Permeability: Activity 2: Simulated Facilitated Diffusion Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Molecules need a carrier protein to help them move across a membrane because You correctly answered: d. they are lipid insoluble or they are too large. 2. Which of the following is true of facilitated diffusion? You correctly answered: c. Movement is passive and down a concentration gradient. 3. Examples of solutes that might require facilitated diffusion include You correctly answered: d. all of the above.Which of the following would not affect the rate of facilitated diffusion? You correctly answered: a. the amount of intracellular ATP 08/30/12 page 1 Experiment Results Predict Question: Predict Question 1: What effect do you think increasing the number of protein carriers will have on the glucose transport rate? Your answer : a. The glucose transport rate will decrease. For facilitated diffusion, increasing the concentration of glucose on one side of the membrane is the same as You correctly answered: b. making the concentration gradient steeper 3. When all of the membrane carriers are engaged, or busy, we say they are You correctly answered: a. saturated. Â  Na+ Cl- had no effect on glucose transport because You correctly answered: b. odium is not required for glucose transport in the simulation. 08/30/12 page 3 Review Sheet Results 1. Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it is different from simple diffusion. Your answer: Simple diffussion moves molecules from an area of higher concentration to lower without an input of energy. facilitated follows the same rule but uses protein carrier molecules to allow substance that are fat solubles to diffuse through the cell membrane. The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose transport. Explain why the rate increased. How well did the results compare with your prediction? Your answer: My prediction was wrong the glucose transport rate would increase 3. Explain your prediction for the effect Na+ Cl- might have on glucose transport. In other words, explain why you picked the choice that you did. How well did the results compare with your prediction? Your answer: The rate should stay ther same 08/30/12 page 4

Criticism Of Diego Velàzquezs Las Meninas, Sebastiàn de Morra, and Bal

  Ã‚  Ã‚  Ã‚  Ã‚  Diego Velà  zquez was called the â€Å"noblest and most commanding man among the artists of his country.† He was a master realist, and no painter has surpassed him in the ability to seize essential features and fix them on canvas with a few broad, sure strokes. â€Å"His men and women seem to breathe,† it has been said; â€Å"his horses are full of action and his dogs of life.† Because of Velà  zquez’ great skill in merging color, light, space, rhythm of line, and mass in such a way that all have equal value, he was known as â€Å"the painter’s painter,† as demonstrated in the paintings Las Meninas, Sebastià  n de Morra, and Baltasar Carlos and a Dwarf. Las Meninas is a pictorial summary and a commentary on the essential mystery of the visual world, as well as on the ambiguity that results when different states or levels interact or are juxtaposed. The painting of The Royal Family also known as Las Meninas has always been regarded as an unsurpassable masterpiece. According to Palomino, it ‘was finished’ in 1656, and, while Velà  zquez was painting it, the King, the Queen, and the Infantas Marà ¬a Teresa and Margarita often came to watch him at work. In the painting, the painter himself is seen at the easel; the mirror on the rear wall reflects the half-length figures of Philip IV and Queen Mariana standing under a red curtain. The Infanta Margarita is in the center, attended by two Meninas, or maids of honor, Doà ±a Isabel de Velasco and Doà ±a Marà ¬a Sarmiento, who curtsy as the latter offers her mistress a drink of water in a bà ¹caro—a reddish earthen vessel –on a tray. In the right foreground st and a female dwarf, Mari-Bà  rbola, and a midget, Nicolà  s de Pertusato, who playfully puts his foot on the back of the mastiff resting on the floor. Linked to this large group there is another formed by Doà ±a Marcela de Ulloa, guardamujer de las damas de la Reina – attendant to the ladies-in-waiting—and an unidentified guardadamas, or escort to the same ladies. In the background, the aposentador, or Palace marshal, to the Queen, Don Josà ¨ Nieto Velà  zquez, stands on the steps leading into the room from the lit-up door. Las Meninas has three foci: The figure of the Infanta Margarita is the most luminous; the likeness of the Master himself is another; and the third is provided by the half-length images of the King and the Queen in the mirror on the rear wall. Velà  zquez bui... ...asting perfection and imperfection of the two little figures almost unavoidably becomes a metaphor of the social and natural order. In these royal portraits, whatever the interpretation Velà  zquez made or whatever emotional reaction he experienced he kept to himself. Royalty, courtliness of the most rigid character was his task to portray not individual personality. Through his practice of using pigment in short or long, thin or thick, apparently hasty and spontaneous but actually most skillfully calculated strokes, Velà  zquez was the precursor of the modern practice or direct painting. Bibliography Brown, Jonathan. Velà  zquez Painter and Courtier. New Haven and London: Yale University Press, 1986. Kleiner, Fred S., Mamiya, Christin J., Tansey Richard G. Gardner’s Art Through the Ages, vol. II. Harcourt college Publishers; San Diego et al. 2001. Lopez-Rey, Josà ¨. Velà  zquez Work and World. Greenwich, Connecticut: New York Society, 1968. Internet Article: www.ibiblio.org/wm/paint/auth/velazquez/   Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  

5 Minute Sppech

Does the thought of writing and delivering a speech terrify you? Most people share your fear. But why remain scared of public speaking when the solution to this age old problem is so simple? Follow these simple speaking tips and you'll be ready to present a decent speech next week. First, take a deep breath and relax your mind. Your challenge is to speak to an audience about a topic that you know something about. In other words, you will be sharing your knowledge in a conversational manner with people who are interested in what you have to say. Second, break down the elements of your speech.A simple technique to use in your opening is the Attention Grabber Question. Ask the audience a question that will force them to respond either aloud or to themselves. This will get people involved with your topic and provide you with the positive feedback you need to share a quality message. Decide on three main body points that you want to cover. You may even choose three stories or anecdotes to use as the body points. That will make audience sharing even easier. The goal is to make you feel like you're telling a story to a friend. The only difference is that you're telling the story to ten, twenty, fifty or one hundred friends!Finally, your conclusion must challenge, issue a call to action, or motivate your audience to do something positive with the information that you've just shared. The conclusion is the most frequently abused piece of a speech. The speaker typically hurries to finish and leaves out a profound bit of wisdom that the audience needs and wants. Speaker Beware – Don't try to memorize your speech word for word. If you lose your place and grasp for the exact word that makes up your script, you may draw a mind blank and panic. Let's look at a simple speech topic that can quickly be developed into a complete presentation.Suppose you want to talk about container gardening. An Attention Grabber Question might be, â€Å"How many of you have a green thumb? â€Å"Well neither did I until I started dropping plants into pots. † Audience members will either answer yes or no to the green thumb question. You have their involvement at this point in the beginning. Your three main body points may feature three different types of plants you have successfully grown in containers. For added impact, show pictures of your work or bring a sample of your passion for gardening. Props always add another dimension to your presentations. Let your excitement about the topic fuel your words.In the conclusion, simply tell the audience how easy it is to begin container gardening. You may even give them resources to explore for more information. This leaves the audience members with valuable advice that they can use after leaving the room. For beginning orators, consider taking a three by five note card to the lectern. The card should only feature the Attention Grabber Question, the three main body points, and the profound conclusion that sends the au dience home feeling content and fulfilled. Glance at the card only to keep order. Make an effort to look at each audience member.Use a sweeping eye movement so that you're sharing the information with everyone in the room. As you gain confidence as a speaker, you can experiment with hand gestures, vocal variety and body movement. These skills will develop with practice. When you get that next speech assignment, decide to share and not recite your wisdom. Break down the elements of the presentation. Don't let the project overwhelm you. Make sure you give the audience members something to take home. You are offering some information that they can use. With a positive, sharing attitude, you can knock out a quality presentation in only 5 – 7 minutes!

Bring Your Own Device Free Essay Example, 3500 words

In recent times, it is nearly becoming conventional for schools to allow students to carry their own computers to school instead of simply relying on the school computers (Cochrane et al. , 2014). This development is what has led to the so-called BYOD/BYOT trend, which entails allowing learners to carry their personal devices to school, to connect them to the school network and to use them in classes (Centre for Digital Education, 2011). There is a wide range of digital tools that learners can bring to school, including but not limited to smartphones, laptops, e-readers, netbooks, tablets, as well as PDAs and gaming gadgets. Issues in Public discourses concerning BYODIndicatively, the BYOD trend is catching up so fast in many schools, particularly because it presents the most cost-effective strategy towards achieving one-one computing as well as reaping the gains of educational technologies or mobile learning. This trend appeals to many other schools (Kyoko, 2015), especially in the context of limited finances and thoroughly constrained educational budgets. For that matter, the BYOD option provides options for learners (Ray 2012), and saves on costs of providing educational technologies to students since it is cheaper and affordable. We will write a custom essay sample on Bring Your Own Device or any topic specifically for you Only $17.96 $11.86/page Consequently, the BYOD trend effectively aligns the school system to societal life thereby familiarizing learners with digital tools that are utilized in society (Kyoko, 2015).