| IDENTIFICATION OF SOME MACROMOLECULES | | INTRODUCTION Dehydration-synthesis is a reaction that occurs to form different types of macromolecules. It is a reaction that leaves a macromolecule structure along the lines of developing its own specific function in a living organism. The 4 most common ones are carbohydrates which includes monosaccharides and polysaccharides, lipids, proteins and nucleic acids (Mack 2012). Scientists identify different types of macromolecules to achieve a better understanding on how they function in our bodies. This can be achieved by studying their chemical properties and structure. (http://www.ehow.com/list_5889717_four-macromolecules-occur-living-organisms.html) A few experiments were …show more content…
All steps were followed with no deviations. Results TABLE 1 IODINE TEST FOR STARCH AND GLYCOGEN Beaker | Colour | Positive/Negative | 1 | Yellow | Negative | 2 | Bright Yellow | Negative | 3 | Yellow | Negative | 4 | Yellow | Negative | 5 | Dark Yellow | Negative | 6 | Bright Yellow | Negative | 7 | Dark Reddish Brown | Glycogen | 8 | Dark Blue Purple | Starch | 9 | Yellow | Negative | 10 | Yellow | Negative | 11 | Yellow | Negative | 12 | Reddish Brown Yellow | Glycogen | TABLE 2 BENEDICT’S TEST FOR REDUCING SUGARS Beaker | Colour | Positive/Negative | 1 | Light Orange (red ppt) | Positive | 2 | Sky Blue | Negative | 3 | Light Orange (red ppt) | Positive | 4 | Cloudy Opaque Orange (red ppt) | Positive | 5 | Sky Blue | Negative | 6 | Light Orange (red ppt) | Positive | 7 | Sky Blue | Negative | 8 | Sky Blue | Negative | 9 | Translucent Dark Blue | Negative | 10 | Cloudy Opaque Orange (red ppt) | Positive | 11 | Sky Blue | Negative | 12 | Sky Blue (no ppt) | Negative | TABLE 3 BIURET TEST FOR PROTEIN Beaker | Colour | Positive/Negative | 1 | Transparent light blue purple | Negative | 2 | Transparent light blue purple | Negative | 3 | Transparent light blue purple | Negative | 4 | Transparent light blue purple | Negative | 5 | Transparent light blue purple | Negative | 6 |
Biological evolution begins with the origin of life, but the subject is the perhaps the most interdisciplinary of any in science. Understanding how life began on Earth requires knowledge of the astronomical, geological, and atmospheric settings. However, those settings are in turn dependent on knowing the time period when life arose, which comes from the fossil and molecular records, including molecular clocks based on genetic mutations. Interrelated with the setting is the chemistry that generates the organic molecules used to assemble the first cells and carry the genetic information to successive generations of cells. But holding the chemical reactions and products together in a cell requires a membrane, and the assembly of that involves
Macromolecules are huge molecules that are formed when smaller molecules collide into each other which created a much bigger one. It usually happens when a condensation reaction occurs. Macromolecules are also referred as polymers, “poly” meaning many. The way I remember the word macromolecules was when my High School biology teacher referred “Mac” in macromolecules as the Big Mac from McDonalds, which is supposed to be bigger than other burgers. Everything has macromolecules in them, such as plastic, rubber and even diamonds! There are four classes of Biological Macromolecules, Protein, Nucleic Acids, Carbohydrates and Lipids.
When the two smaller reactants join together, water is produced and removed during the synthesis of the larger molecule. This is also called Dehydration Synthesis.
A macromolecule can be any of a general selection of molecules, such as: proteins, carbohydrates, lipids, and
A cell is the fundamental building blocks of all living organisms. Cell’s consist of four biopolymers; protein, carbohydrates, lipids, and nucleic acids. Each macromolecule is a polymer that is formed from molecules known as monomers. In this experiment samples will be subjected through a variety of chemical tests using procedures that will detect the presence of each macromolecule; carbohydrates, protein, and lipids. The specific chemical tests that will be used during this experiment consist of the Biuret test which is a test used to determine the presence of peptide bonds in protein, which is the chemical bond that holds amino acids together. The test relies on a color change to confirm the presence of proteins. If proteins are present,
There are four basic macromolecules that contribe to healthy eating, Carbohydrates, proteins, fats and lipids. Each one of these needs to maintant a balance in your diet despit the diets that promote elimating them all together from your meals.
Introduction: The food we ingest makes a big impact of what happens inside our bodies. Food and the nutrients it involves contains biological molecules or biomolecules such as Carbohydrates, lipids, proteins, and nucleic acids. These biological molecules are necessary for our bodies to function by providing essential nutrients and energy through the food we consume. Macromolecules are large (macro) molecules that are made of simpler units and are in the four major groups of carbohydrates, lipids, proteins, and nucleic acids.
B.Background: Some important terms and definitions that would be helpful in this investigation would be macromolecules, simple sugars, starch, protein, lipids, and SPAM. Macromolecules are a large biomolecule,
All living things are made out of billions of cells and all contain macromolecules. They are responsible for life as we know it. As we begin to advance and go farther in the field of science, more and more questions are being asked and to answer them, more technologies and techniques are being created and discovered. Scientists John B. Fenn and Koichi Tanaka (for mass spectrometry, a method of identifying molecules) and Kurt Wüthrich (for nuclear magnetic resonance, a method used to form a three-dimensional image of a molecule) created different methods that allowed us to embrace macromolecules. They created a revolutionary breakthrough that made chemical biology into the “big science” of our time.
There are four major classes of macromolecules. They are lipids, carbohydrates, proteins, and nucleic acids. There are many similarities between these macromolecules, and they all play a very important role in biology. However, there are also many differences, especially between lipids and the other three groups.
Diamonds are essentially made out of carbon atoms. They are solids that can go through the process of high temperature and high pressure. (Pilgrim, 2011) It is known to man that diamonds are the hardest material on the earth. (Sean, 2008) With a melting point of 3550 ℃and a boiling point of 4827 C. As you can see above that diamonds have an extremely high melting point (m.p) and a high boiling point (b.p.) The pressure to produce diamonds are also in extreme conditions, diamonds are produced with a temperature range of 900 and 1300 degrees Celsius. Then put under pressure of 725,000 pounds per square inch. (World of Carbon, n.d.) Diamonds have these properties
Macromolecules rely on their environment for proper folding of their respective three- dimensional structure.10 This makes intuitive sense since the exterior, which is polar, is making contact to a polar solvent, like the cytoplasm that provide hydrogen bonds, electrostatic interactions, and conceal the nonpolar residues away from the polar solvent.10 The body has a stable pH and temperature that proteins take advantage to form amazing functional complexes. They can catalyze reactions as enzymes, transport compounds, and make complex units to reach a certain goal like ATP synthase10.They can be dangerous as well, such as binding to receptors on cells for virus entry4. Proteins lose their conformation when they are out of range in temperature
Biologically Important Molecules: Enzymes Introduction The purpose of this experiment is to determine how outside factors—pH, temperature, and incubation time—affect an enzyme’s ability to catalyze, or speed up, a chemical reaction and generate the maximum amount of product. The incubation medium’s pH level, for example, may directly influence the binding of the substrate to the enzyme’s active site. This results from the correlation between pH and the ionization of the substrate and amino acid side chains at the binding site of the enzyme.
Polymer is a compound consisting of long-chain molecules, each molecule made up of repeating unit connected together by a covalent bond. Most polymers are based on carbon and are therefore considered organic chemicals. Groover (2011) suggests that ?the word polymer is derived from Greek, poly and meros, meaning many and parts, respectively. Some scientists prefer to use the word macromolecules or large molecules, instead of polymer?. The polymers are created by connecting many small molecules forms together to make molecules are large. The small units are called monomers. The atoms in molecules use covalent bond to connect together; and these atoms are connected a polymer is considered to be the links of the chain. Carraher (2010) states
The four major biochemical groups (carbohydrates, nucleic acid, lipids and proteins) go through the process of dehydration synthesis to reach their goal and become polymers by joining together