Minerals Nutrients are chemicals in foods that provide energy for powering life processes; chemicals aiding or enabling life processes; or materials to construct molecules for the normal development, growth, and maintenance of the body. There are six groups of nutrients: All six groups provide raw materials for constructing new molecules, but only carbohydrates, lipids, and proteins provide energy to sustain life processes.
Carbohydrates Carbohydrates are better known to students as sugars and starches. Monosaccharides or simple sugars such as glucose and fructose C6H12O6 function as energy source in cells during cellular respiration and are also used to build cell structures and other organic molecules within the cells.
Disaccharides are composed of two monosaccharides joined together. Sucrose table sugar is a disacharide composed of one glucose and one fructose molecule. Are long chains of monosaccharides bond together. Plants store excess glucose in the form of starch, a polysaccharide composed of long chains of glucose.
Starches can be found in potatoes, rice, wheat, corn, bananas, peas, beans, lentils, and other tubers, seeds and fruits of plants. Animals and humans store excess glucose in the form of glycogen in the liver and muscles. Between meals the liver breaks down glycogen to glucose and releases it into the blood stream to supply glucose to cells in need.
Other important polysaccharides are cellulose and chitin. Cellulose makes up the cell wall of plants whereas chitin provides structure to fungi and the exoskeleton of arthropods.
Lipids A lot of lipids function as long-term energy storage. One gram of fat stores more than twice as much energy as one gram of carbohydrates. Lipids are also an important component of the cell membrane. Lipids consist of glycerol and fatty acids "tails".
The fatty acid chains can be saturated, with all carbons saturated with hydrogen atoms forming a straight chain without double bonds. Unsaturated fatty acids contain double bonds within the carbon chain, which results in a bend of the chain.
Proteins Proteins are complex, specialized molecules composed of carbon, oxygen, hydrogen, nitrogen and sometimes sulfur. The building blocks of proteins are amino acids. There are 20 different amino acids that combine to form polypeptides proteins. The different amino acids are similar in structure: The different amino acids have different side chain, but are otherwise identical.
Proteins have many important roles in organisms. Structural proteins such as collagen or elastin, provide support. Regulatory proteins such as enzymes control cell processes. Proteins also play an important part in the immune system antibodiesoxygen transport hemoglobinmovement muscles etc.
Nucleic Acids Nucleic acids are composed of building blocks called nucleotides. Each nucleotide is made of a sugar molecule, a phosphate molecule and a nitrogenous base. In DNA deoxyribose nucleic acid the sugar is a deoxyribose and the nitrogenous bases are adenine, guanine, cytosine and thymine.
In RNA ribose nucleic acid the sugar is a ribose and the bases are adenine, guanine, cytosine and uracil. Nucleic acids carry the genetic information within cells.
This reaction is caused by the reducing property of simple carbohydrates.Carbohydrates, Proteins, lipids, and nucleic Acid Lab Exercise 6 Date: 9/17/12 Bio Purpose the purpose of this experiment was to perform test to detect the presence of carbohydrates, proteins, lipids, and nucleic acids.
Explain the importance of a positive and a negative control in biochemical caninariojana.com://caninariojana.com · Lab 6 Protein, Fats, Sugars and Starch Plants are composed of a variety of compounds, many of which humans use for food, drugs oils and cosmetics.
Besides water, certain plant organs have high concentrations of carbohydrates, proteins and lipids that can vary in different organs in the plant caninariojana.com Protein.
BIOLOGY 3A LABORATORY LAB 2: Biologically Important Molecules Carbohydrates, Proteins, Lipids, and Nucleic Acids Objectives In this lab you will learn to: 1.
Perform tests to detect the presence of carbohydrates, lipids, proteins, and nucleic acids 2. Recognize the importance of a control in a biochemical test 3.
Use biochemical tests to. Lab 2: Carbohydrates and Protein/Lipid Laboratory 2, AP Biology Spurthi Tarugu, Kavinmozhi Caldwell, Chelsea Mbakwe, Radha Dave, Navya Kondeti Abstract: Almost all living organisms contain four organic compounds, two of which are lipids and proteins.
Lipids are made up of one molecule of glycerol and three molecules of fatty acids, . LAB REPORT. Lakyn Allen, Landon Fox, Gina Thomas, Paola Ruiz, Christine Carroll. Proteins, Simple Sugars, Lipids, and Starch: An Experiment. Researching the Existence of These in Lemonade and Crackers.
A great way to check whether students have mastered the tests is to give them one or more unknown samples of mixtures of lipids, carbohydrates and proteins and have students perform the tests above to figure out which of .