Macromolecules Lab

The purpose of this lab was to test different substances using various procedures to see what biomolecules were present and ultimately find out what restaurant Anna Lyza had eaten at before she died. For the first control test, we used vegetable oil to test for lipids. So, if the solution does not contain lipids, it does not become translucent when placed onto a paper bag square and held up to a light. So, it is a negative result. However, in the presence of lipids, the solution will become translucent when placed onto a paper bag square and held up to a light. Therefore in this case, the result is positive. On the other hand, we used albumin egg to test for proteins in another control test. If the solution does not contain proteins, it will not experience any color change and so it is a negative result. When there are proteins existing in the solution, it will turn bluish/purplish and for this reason it is a positive result. Furthermore in the third control test, we used dextrose to test for simple carbohydrates such as glucose. If the solution does not contain simple carbohydrates, it will not undergo any color change and will remain a blue color. So, it is a negative result in this circumstance. If there are simple carbohydrates present in the solution, the solution will turn reddish and so the result is positive. For the last control test, we used starch solution to test

All living things contain some form of organic macromolecules including: Lipids, proteins, carbohydrates and nucleic acids. All of these organic molecules are alike in the sense that is they are made up of bonded elements such as carbon, hydrogen, oxygen, and to smaller quantities nitrogen, phosphorus and sulfur. The macromolecules each contain large long chains of carbon and hydrogen atoms and often consists of repeating smaller molecules bonded together in a repeating pattern (polymers). To test whether a specific solid white substance is a protein is simple due to the unique chains found in the respective type of macromolecule. To test if the substance is a carbohydrate, two tests could be performed on separate samples of the object. First,

The most common macromolecules found in living organisms are lipids, carbohydrates, proteins and nucleic acids. Briefly, the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy, information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests, many cannot. Scientists then use certain tests to determine the presence of macromolecules.

Carbohydrates are used for energy and structural support in cell walls of plants and exoskeletons of crustaceans and insects. They are also used to make cell structures and can make a large group of chemical compounds. Carbohydrates are also made up of carbon, hydrogen and oxygen. The testing solution for carbohydrates is Benedict and iodine. Next is proteins, they help bulk up all solid materials inside your body, such as your muscle, hair, skin, and inside organs. Proteins also make up some hormones which help with the chemical control in the body. They

7)a) You would do the Benedict’s reagent test for simple sugars and the Lugol’s solution or Iodine test for polysaccharides and starch. To test the lipids you would use the Sudan iV test and Biurets reagent test for protein.

A macromolecule can be any of a general selection of molecules, such as: proteins, carbohydrates, lipids, and

Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells. (Dr. Ananya Mandal, MD, 10/09/2012, Para.1) The lipids that are usually in our foods are fats and oils. Lipids are hydrophobic, meaning they have little or no affinity for water. (Neil A. Campbell,

Then, nucleic acids are made up of nucleotides and has the ability to make new cells. Finally, Lipids. Lipids are made up of glycerol and fatty acids. Lipids play a big role in the body, it provides cushion and insulation for the larger organisms in our bodies. All of these macromolecules and monomers are needed to make energy.

Lipids are fats and oils and have no true monomers, but they are made of glycerol and fatty acids. Lipids can be saturated, which means that every carbon has a single bond and has the maximum number of hydrogens possible, and they can be unsaturated, which means the carbons can have double bonds and not the maximum number of hydrogen. Lipids store energy, act as insulation to organisms, and protect organs from injury. Nucleic acids are made of monomers called nucleotides, and they make up the DNA and RNA of an organism. They have the information needed to produce proteins needed for a person’s body.

Lipids make up the outer membranes of cells, while carbohydrates can be used to make exoskeletons. Furthermore, the glycerol heads in lipids are made of carbon, oxygen and hydrogen which are attached to long hydrocarbon tails. Carbohydrates must have this ratio of carbon, hydrogen and oxygen:(CH2O)n They both contain a lot of energy. Another similarity is that both carbohydrates and lipids can be used to provide structure. Both are broken by hydrolysis and combined using dehydration

All submission will be ran through a plagiarism-checker) Due 4-13-1847. What are characteristics of carbohydrates, lipids, and proteins? What do they look like? What are their functions?Carbohydrates- simple sugar. They are composed of carbon, hydrogen and oxygen. They are also monosaccharides.Lipids- They are fats, oils and steroids. Lipids store energy and also helps in the synthesis of vitamins and hormones.Proteins- They are a long chain of amino acids. They are the most complex and most diverse chemical composition.Functions of carbohydrates, lipids and proteins Carbohydrates- provides energy as they are the bod’s main source of fuel, needed for physical activity.Lipids- Lipids are used for storage of energy and forming cell membranes.Proteins- They do most of the work in cells and are required for the structure, function, and regulation of body tissue and organWhat do they look like?Lipids- They have long hydrocarbon chains that determine the way they act.Carbohydrates- Molecules combines of carbon, hydrogen and oxygen.Protein- A long chain of amino acids combined.48. What is metabolism? How are carbohydrates, lipids, and proteins metabolized? What role does enzymes play in metabolisms?Metabolism is the chemical process that occur within a living organism in order to maintain life.Carbohydrate metabolism- begins with digestion in the small intestine where monosaccharides are absorbed into the blood stream. Blood sugar concentrations are controlled by three hormones: insulin, glucagon, and epinephrine. If the concentration of glucose in the blood is too high, insulin is secreted by the pancreas.Lipid metabolism- are involved with Fatty Acid Oxidation to produce energy or the synthesis of lipids which is called Lipogenesis. Lipid metabolism is closely connected to the

Lipids and Carbohydrates Lipids are a group of substances, which include fats, oils and waxes. Carbohydrates include sugars, starches, glycogen and cellulose. They are stored in plants as starches and in animals as glycogen. There are many differences between carbohydrates and lipids.

The Biological macromolecules play a critical role in cell structure and function. Most biological macromolecules (but not all) are polymers. Polymers are any molecules constructed by linking together many smaller molecules, called monomers. The Monomers typically found within the polymer tend to be either identical or very similar, linked in a sequenced chain to build up the larger macromolecule. These simple monomers can be combined in numerous ways to produce complex biological polymers. Just as Lego blocks can build things such as a basic model of a house to something complex as a car, monomers are similar in the respect that they can build simple biological polymers to very complicated polymers. Another great example of these monomers

There are four types of biomolecules, carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates are large chains of sugar found in food and living tissues. This includes sugars, starch, and cellulose. They have the same ratio of hydrogen and oxygen that water has, 2:1. They are broken down to release energy in the animal body. Lipids are any organic compounds that are fatty acids and don’t dissolve in water but do in organic solvents. Fatty acids can be found in natural oils, waxes, and steroids. Proteins are macromolecules that do everything in the cell. They are tools and machines that make things happen. Nucleic acids are long strands of nucleotides, and function primarily in storage and transmission of genetic information. There are two types of nucleic acids, DNA and RNA. DNA is the genetic material of all cellular organisms, and RNA sends out messages from the information that is held in the DNA.

Most organic compounds in living organisms are carbohydrates, proteins, lipids, and nucleic acids they are called macromolecules. Each of these macromolecules is made of smaller subunits. These subunits are linked by dehydration synthesis. Dehydration synthesis is an energy requiring process in which a molecule of water is removing and the two subunits are boded