Two Carbohydrate Solution Essay Example for Free

Two Carbohydrate Solution Essay This experiment consist of 2 part . First part is to test whether solution A and solution B are reducing sugar. Second part of the experiment is to investigate 2 type of reaction , biological reaction and chemical reaction. The chemical enzyme is hydrochloric acid while the biological enzyme is amylase saliva . The specific enzyme reaction involved in the experiment is hydrolysis reaction. Solution B is a polysaccharide which will break down into monosaccharide by hydrolysis reaction. Hydrochloric acid is a very strong acid and it can digest any that contact with it. At high temperature, hydrochloric acid can act as chemical enzyme which can hydrolyses polysaccharide. Hydrochloric acid can break down solution B and starch which are polysaccharide to their respective monosaccharide. Temperatures may have affect the substances such as solutions A and B, saliva, and hydrochloric acid. Saliva is a type of biological enzyme needs an optimum temperature of 37Â °C to carry out high activity. High temperature causes amylase to become denatured, and the shape of the active site changes, because the bonds in the enzymes are broken because of the heat energy gained to brak the bond. When an enzyme is denatured, it cannot function, hence , no catalyse biological reaction. When solution B is under high temperature, solution B gains heat, which is converted to kinetic energy. Solution B thus have high kinetic energy, and its easier to be catalyzed because the activation energy is achieved easily. Because it has high kinetic energy, the solution can be catalyzed by the hydrochloric acid. The product that formed after hydrolysed is broken to monosaccharide which are glucose molecules. This is because glucose is a type of reducing sugar that can turns Benedict’s solution from blue to brick-red precipitate. Starch and glucose are consider as carbohydrate . Figure below shows the structures of starch. Structure of glucose is shown as above . Basis of the test used in this experiment is for amylase enzyme and hydrochloric acid to function as enzymes to convert starch, which is solution B to their monomers. At 37Â °C, amylase enzyme are able to convert starch to glucose because it is in their optimum temperature. Beside that, HCl cannot carry out reaction because its has not gained enough energy to catalyse reaction. At 95Â °C, HCl are able to catalyse starch into glucose molecule because it has gained enough energy through heating process. However, amylase enzyme are denatured at high temperature. High temperature breaks the bonds that holds the 3D shape of an amylase enzyme. This causes the active site of the amylase enzyme to be altered, and therefore starch molecules cannot bind to the altered active site. The purpose of adding sodium hydroxide is to neutralize the hydrochloric acid in the solutions, while adding Benedict’s solution is to test the presence of glucose molecules. Carbohydrate Solution B is the complex molecule and this is because show no reaction in benedict’s test. Before hydrochloric acid is added, solution B still is starch. After hydrolyzing reaction take place , is shows positive result to th benedict’s test. Means glucose is present in solution B after hydrolyzing. Conclusion : Salivary amylase will only hydrolyse starch into glucose at optimum temperature(37 while hydrochloric acid can hydrolyse starch at temperature (c).

Classification of Characters Bill and Boyd Meet :: essays research papers

Billy and Boyd come in contact with many interesting characters through out their journeys. There are six characters that Billy and Boyd meet who seam to impact their lives the most. Those six characters can be broken up into two groups to describe how they impacted Billy and Boyd’s lives. The two groups are the characters that helped them along their journeys, and the characters that did not help them along their journeys. The first character who impacted their lives and ultimately their journeys is the Indian. Billy and Boyd were down at the river when they met this character. The Indian did not like them from the beginning. The Indian did not like them knowing he was there, so he used them. The Indian got them to bring him food. Then he asked for coffee and other good. Billy and Boyd decided not to bring the items back to the Indian because they did not want anything to do with him. The only problem was the Indian knew where they lived. The Indian did not help Billy and Boyd in the journeys. The Indian ended killing their parents, burning part of their house, and slitting their dog’s neck, which made him mute. Another character who did not help in Billy and Boyd’s journeys is the Mexican deputy. Billy and Boyd were trying to find their stolen horses that they had papers for. They knew that the deputy knew information about the horses. When they showed the deputy the horse’s papers, he told them to put them away, that the papers would not help them get the horses back. The other character(S) that did not help Billy and Boyd’s journeys is the two kidnapers. Along their journeys they run into a girl who is around Boyd’s age, she is traveling alone. They kind of scare her so she does not let them help her. They go on their way, down the rode they run into to guys. Billy and Boyd know that these guys are going to give her trouble. So they wait till sun down and they go back and find her. The kidnapers have in fact given her trouble. They have also raped her. Billy and Boyd decide that they are going to get her away from the kidnapers.

First Poem for You Essay

The Shakespearean sonnet â€Å"First Poem for You† has an iambic pentameter and consistent rhyme scheme. Every other line represents a true rhyme – the final accented vowels and all succeeding consonants or syllables are identical. For example the words â€Å"complete† and â€Å"neat† (Addonizio 1, 3). Every line of the poem has a basic stressed and unstressed syllable format, except the last line. The extension of the last line â€Å"but touch them, trying† implements a longer stress (14). I believe this has definite meaning to the structure of the poem. In addition, the final verse of the poem is the longest line. In relation to the word â€Å"trying†, I believe that the longer stress and length in the final line of the poem emphasizes the woman continuing to mend the relationship with her boyfriend. The theme of the poem is about love and desire, a woman who cares for her boyfriend seeks to mend the brokenness in their relationship. The title of the poem, â€Å"First Poem for You†, is simplistic and straightforward. Nevertheless, it has direct meaning and relation to the poem. There is a woman writing to her boyfriend about her feelings towards him. She likes to touch his tattoos, have sexual intercourse, yet she recognizes the pain between them and states that â€Å"such permanence is terrifying† (13). These split feelings cause a tone of ambivalence – conflicting feelings toward a person. She is touching the tattoos in complete darkness, which can help the reader understand her desire for her boyfriend yet the shame or timidity that is shared as well. Most shameful acts are done in the dark. Culture and society distinguish the pros of light vs. darkness. This poem does not directly reflect light vs. darkness (good vs. vil), but I believe the negative connotation the word darkness holds, transcends into this poem. If she was touching her boyfriend in the light the poem may have a more optimistic mood. However, darkness is usually related to death, therefore having a pessimistic mood. Furthermore, the connotation of death demonstrates a more in depth meaning of verse 11, â€Å"you’re seared to ashes†. This is a representation of the boyfriend’s death. Perhaps, he is burned alive, but I believe it refers more to him being cremated. Either meaning the reader interprets, the writer wants the reader to understand that the tattoos will remain until death. This is important because I believe the lasting of the tattoos reflect the â€Å"until death do apart† affections the woman has. This brings us back to the last phrase of the poem, â€Å"but touch them, trying†. Despite the confusing feelings, the woman wants to work through the relationship till the death of one of them. Just as the tattoos will remain till death, so will her pursuit towards her boyfriend. The tattoos have many symbolic representations that help the reader understand the feelings the woman has for her boyfriend. Water and lightening are two words that have a symbolic meaning for the poem. â€Å"Lines of lightening pulsing just above your nipple, can find, as if by instinct, the blue swirls of water on your shoulder where a serpent twists, facing a dragon† (4-7). Though symbols can have multiple meanings, the tone and theme of the poem helps to point out the specific meaning behind the relationship. The girlfriend, of the guy with the tattoos, enjoys touching the tattoos when she is unable to see the guy. She knows by heart just where the lightening is pulsing. In this case, the lightening symbolizes power of love that has a pulse, just like a person’s heartbeat; a beat that can go faster or slower depending on the situation. It is instinctive for the woman to know where every tattoo on the guy, just like in a relationship, a person may know every mark or scar on the other’s body. The woman knows that just above his shoulder are the blue swirls of water, where the water is symbolizing that the boyfriend may be pure at heart. The serpent facing the dragon symbolizes the warrior in him, and it also shows he has no fear against his enemies. When I pull you to me, until we’re spent and quiet on the sheets, I love to kiss the pictures in your skin† (Kennedy, 601), means that she pulls him closer to her while they’re laying down and falling asleep, she expresses her love and care for him until there’s no more time left in the night, until it’s all spent. To kiss the pictures in his skin simply means kissing his tattoos. â€Å"They’ll last until you’re seared to ashes; whatever persists or turns to pain between us, they will still be there† (Kennedy, 601), whatever persists†¦

How to Start Tutoring From Home

Starting a tutoring business in addition to classroom teaching works well for part-time teachers. With plenty of time and sanity left for a few hours of one-on-one tutoring in the afternoons or weekends, tutors can enrich lives and bank accounts. If you have the availability to add more duties to your schedule, consider taking on additional pupils by planning and implementing a tutoring business plan. On the other hand, it is not recommended for full-time teachers to take on even more responsibilities. You need time for yourself, away from other peoples children. Think of the Big Picture What subjects are you qualified to teach? How can you prove to prospective clients that you have the knowledge and experience for these subjects? If there is a high demand for high school math tutors in your area and you are competent and comfortable teaching Algebra and Geometry, you will have no trouble finding clients. However, if youre rusty on popular subjects in your area, take time to brush up. Youll probably only have to cram briefly before youre back on track to tutor that subject for the foreseeable future. Once youve figured out the time, place, and rate, you need to formulate a lesson plan for one-on-one sessions. Figure Out Hourly Rates Do some precise market research to see how much other tutors in your area charge. Don’t sell yourself short, and be careful about compromising and lowering your rate once its set. Introductory discounts to land your first clients may lock you into too low of a rate that isnt worth your while when youre established. Plus, no matter what feels comfortable and fair, youre likely to lose potential clients to complaints about your high prices. Know your worth, and dont let unreasonable frugality bother you. If you research properly, you shouldn’t have to lower your rates at all. Consider Possible Clients What age group would you like to work with? You’ll also want to decide on a reasonable radius from your home that you’d be willing to accept clients from. Consider traffic and geography, or youll make the mistake of accepting a client who lives a twenty miles away, on the freeway in both directions. Not ideal, by any means. If youre just starting out, desperate, or simply not prepared, you could be caught off-guard and agree to something thats not worth the agreed hourly rate. Optimally, you would only accept clients in your immediate vicinity. Marketing Techniques Think about the best way to reach your target audience. Some of the options include: Flyers with tabs on the neighborhood mailboxesFlyer delivery service to your target areaPost on CraigslistSign up for an online tutoring referral servicePut up flyers in the community, or put them in local mailboxesAdvertise in community publicationsSend a letter and business cards to guidance counselors at local schools One of the best things about tutoring is that theres very little start-up cost. As your client list grows, word-of-mouth will be your best way to gain new clients. Collect reference letters from long-term clients to build up your reputation as a trusted neighborhood tutor. The Nitty-Gritty of Where and When   Will you travel to clients houses, host your students at home, or meet at the library? Ideally, your clients always arrive neatly and promptly on your doorstep, ready to learn. However, if when starting out, you probably won’t be able to demand such a thing. As you build your resume and references, perhaps this idea can become a reality. Tutoring from home requires a very clean and distraction-free space, which makes your tutoring sessions more productive and appeals to parents with chaotic homes. As for when, be realistic about how much time you need to transition between appointments or accommodate off-the-clock interactions, and how many hours you can feasibly cover in one afternoon.