The objective of this macromolecules lab was to identify the presence any of the major macromolecules in various every day food items. The three macromolecules that this lab was carried out for were carbohydrates‚ lipids‚ and proteins. There were five different experiments conducted and each of those experiments had one factor in common‚ they all had the same controls. The controls in this lab activity were already set for the lab activity. The controls were the distilled water and the baking soda
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The Four Main Macromolecules Interestingly enough‚ all cells that build up an entire organism‚ such as the human body‚ only consist of water‚ inorganic ions‚ and organic compounds as three dominant components. Together‚ water and inorganic ions such as Sodium‚ Magnesium‚ Calcium‚ Phosphate‚ etc. make up around 70% of the cell’s mass‚ while organic compounds make up the rest. Unlike its other two counterparts‚ organic compounds contain carbon-hydrogen reactions that allow them to create‚ sustain‚
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Monosaccharides ▪ Simple sugars o Disaccharides ▪ Compound sugars o Polysaccharides ▪ Complex sugars a. Monosaccharides • Simple sugars • Contain about 3 to 6 carbon atoms per molecule o Trioses ▪ The three carbon simple sugars o Pentoses ▪ The five carbon simple sugars ▪ Examples are – Ribose and Deoxyribose
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Biuret test. Introduction The purpose of this experiment was to identify the presence of macromolecules by using various positive and negative controls. The principle building blocks of living organisms are essentially constructed by carbon-containing molecules in cells. (Alberts‚ 2009) The macromolecules including lipids‚ carbohydrates‚ proteins‚ and nucleic acids contribute to the most distinctive properties on living organisms. Macromolecules are known as polymers which are constructed by small
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University‚ Baybay City‚ Leyte CHEM31a – BIOCHEMISTRY Laboratory Report Name: Alyssa Diane Marie L. Baljon Date Performed: May 7‚ 2015 Course & Year: BSChem 2 Date Submitted: May 11‚ 2015 Lab Schedule: M-F 7:00-10:00 Score: Group No. 4 Experiment No. 3 Carbohydrates Objectives Use of chemical tests to identify some physical and chemical characteristics of typical carbohydrates. Differentiate between monosaccharides‚ disaccharides‚ and polysaccharides using above tests Identify an unknown carbohydrate
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Abstract The aim of the experiment is to test the existence of macromolecules which are carbohydrates‚ lipids‚ nucleic acids and proteins in given samples. The first experiment is to test the existence of carbohydrates in starch suspension and potato cell. If carbohydrate is present in starch suspension‚ the solution will turn into dark blue when iodine solution is added. If carbohydrate is present in potato cell‚ starch granules can be seen clearly under microscope when iodine solution is added
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help to stabilize the overall structure. For example‚ insulin (a globular protein) has a combination of hydrogen bonds and disulfide bonds that cause it to be mostly clumped into a ball shape. Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. Dna And
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test for starch macromolecules occurs when the solution turns dark brown when Iodine solution is added. 2. If there is glucose in the substance‚ the substance turns to an orange-yellow colour when Benedict’s Solution is added to it. The colour of the glucose solution when it is mixed with Benedict’s solution with heat is orange-yellow‚ while all of the sample solutions turn into a light blue or purple colour. We can therefore deduce that a positive test for glucose macromolecules is when the colour
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accelerating‚ unless it is disturbed by an outside force. Two conditions for equilibrium are that the net force acting on the object is zero‚ and the net torque acting on the object is zero. Thus‚ the following objectives were emphasized in this experiment: to determine the equilibrant force using the force table and the component method‚ to determine the unknown forces using the first condition and second conditions for equilibrium‚ to locate the centre of gravity of a composite body‚ and to demonstrate
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water and part chemicals. The chemicals that help make up life are constructed mainly of carbon. A compound that has carbon in its composition is called an organic compound. Organic compounds also usually contain hydrogen atoms. Even though life is very complex‚ all large molecules that make up life are categorized into four large classes: lipids‚ protein‚ carbohydrates‚ and nucleic acids. These four molecules are known as macromolecules‚ due to their large size. Atoms have diverse characters that
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