waxes‚ -compound lipids‚ -steroids‚ and -derived lipids. Various experiments are done on lipids. Some tests are for saturation‚ presence of certain compounds‚ or for the different chemical reactions that lipids undergo. Lipids may be composed of esters‚ amides‚ alcohols‚ cyclic‚ acyclic‚ or polycyclic structures‚ and may also be a combination of these. OBJECTIVES General Objective: At the end of the experiment‚ students must be able to familiarize themselves with the different classes of lipids
Premium Fatty acid Solvent Glycerol
Polymethylmethacrylate‚ or PMMA for short‚ is a polymer consisting of the monomer methyl methacrylate that has been around since the 1930s1. PMMA is a polymer that has a high impact strength‚ is scratch and shatter resistant‚ and is relatively lightweight1. Because PMMA can also be formed into a transparent thermoplastic and has a glass transitions temperature of 130oC‚ this polymer served as a glass substitute in its early uses1. Other beneficial characteristics of Polymethylmethacrylate include
Premium Orthopedic surgery Osseous tissue Collagen
can be interpreted as noble and brave anti-hero like behavior. Sacrifice self as a martyr to win her dignity. Ester has strength to reject the conventional model of womanhood. She longs to have adventures that society denies her‚ particularly sexual adventures. She dreams of a larger life‚ but the stress even of dreaming such a thing worsens her madness. Ester is trapped in the system that is larger than her white fragile body‚ she is trapped in the men’s world. 5. Phoebe
Premium Love Woman Interpersonal relationship
Preliminary Test and Solubility Classification of Organic Compound Keene Louise Topacio‚ Christopher Jay Robidillo Abstract The experiment focuses on how to classify organic compounds by its functional groups. It is done by preliminary test and with the solubility test. Preliminary test used two known compounds also the unknowns. Physical state‚ color‚ odor‚ and ignition test were noted. The known compounds are inorganic and organic compounds. A comparison is made from the observation in the unknown
Premium Functional group Carboxylic acid Acetic acid
various reasons for keeping the temperature as low as possible. Yeast stops growing as temperatures increase and will die at higher temperatures. Also at lower temperatures colours and flavours are extracted from the skins and by-products such as esters and aromatic compounds are produced which add to the flavour and also the clarity of the wine. Advances in Wine Chemistry As more and more research is done into the constituents of the wine and the way they are formed‚
Premium Winemaking Wine Fermentation
SOCIO-ECONOMIC ISSUES!!! BY: AMMARAH SULIMAN GRADE 10 WHAT DOES SOCIO- ECONOMICS MEAN? Socioeconomics is an area that governs the understandings and the activities of individuals that shape them as economically active WHAT IS SOCIO-ECONOMIC ISSUES? socio-economic issues are the problems that socioeconomics tackles and the factors that have negative influence on the individuals’ economic activity. Such issues are lack of education‚ cultural and religious discrimination‚ overpopulation‚ unemployment
Premium AIDS HIV Immune system
reliever) Identifying salicylic acid Three chemical tests which are used to predict the structure of salicylic acid 1. Salicylic acid in aqueous solution is weakly acidic ( presence of COOH group) 2. Salicylic acid reacts with alcohols to form esters which give of strong odours. 3. When salicylic acid is added to a neutral solution such as iron chloride it turns intense pink colour. ( presence of a phenol- OH attached to a benzene ring ) WM4-Instrumental analysis Instrumental analysis includes
Premium Carboxylic acid Chemistry Salicylic acid
Ligation is the process of joining two DNA fragments or other molecules by a phosphate ester linkage with the action of enzyme. Ligation of DNA is process that involve the DNA of interest is inserted into the plasmid. This 3’-hydroxyl of DNA terminus are joined together with 5’-phosphoryl of another by phosphodiester bond. The ligation of DNA fragments usually performed by using T4 DNA ligase. All the reaction components such as ligation buffer‚ DNA insert‚ pGEM®-T‚ and T4 DNA ligase is mixed by
Premium DNA Gene Genetics
has many different components that make it up such as hydrogen‚ oxygen‚ nitrogen‚ and phospurous. The structure has two long polymers of a simple unit called nucleotides. Holding the back of the structure is sugar and phosphate which are attached by ester bonds. Bonded to each sugar is 4 different types of molecules called bases. The backbone of the dna is where the genetic information is stored. The code is read by copying stretches of DNA into the related nucleic acid RNA‚ in a process called transcription
Free DNA
upper neck and the chest. The glands produce sebum which is responsible for keeping the skin moisturized. The major function of the sebaceous glands is secretion of the sebum by a holocrine process. The sebum secreted is composed of triglycerides‚ wax esters and squalence. Sebum on the skin plays a crucial role in maintain a skin barrier by expressing pro inflammatory and anti inflammatory properties. Combination of sebum and other apocrine secretions have a thermoregulatory role (Smith‚ 2011). Sweat
Premium Skin