consuming fats and proteins. According to the Mayo Clinic‚ the main goal of this diet created by Robert C. Atkins in 1972‚ was to maintain a balanced amount of carbohydrates and fats and proteins for ideal health and weight loss. When the Atkins diet was first introduced‚ it was believed that consuming too many carbohydrates led to blood sugar imbalances‚ cardiovascular complications‚ and weight gain. The main idea of restricting levels of carbohydrates consumed and increasing fats and proteins has evolved
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They are responsible for the conversion of starch into sugar‚ that gives the starchy plants and tubers energy. Function: Synthesis and storage of starch granules Cell Membrane or Plasma Membrane The cell membrane is a thin layer made up of proteins‚ lipids‚ and fats. It forms a protective wall around the organelles contained within the cell. It is selectively permeable and thus‚ regulates the transportation of materials needed for the survival of the organelles of the cell. Function: Protects
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the protons are not equal to the electrons ion the protons are not equal to the neutrons isotope atomic mass = mass of protons + neutrons changing the number of neutrons does not influece the mass or electrons atom behaviour is because of electrons hydrogen almost always loses its electron‚ leaving it a hydrogen ion taking away a negative charge creates a cation adding a negative charge creates an anion electronegativity is the ability to steal electrons electronegativity is influenced
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into four major categories: proteins‚ nucleic acids‚ lipids and carbohydrates. These are mainly composed of polymers‚ long molecules made up of a large number of small‚ similar molecules‚ or monomers. Proteins are polymers of amino acids. Long amino acid chains are folded into complex shapes‚ the shape of each determining the function of the protein. They are complex organic compounds‚ essential to the functioning as well as the structure of all organic cells. Proteins range in size from a few
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1) A peptide‚ KKDSRHSTTR is tightly bound to a negatively charged ion exchange column. The column is washed with a pH 7.2 HEPES buffer (50 mM) and the peptide does not elute. Suggest two ways that you can change the buffer that will make the peptide elute from the column. 2) What amino acid(s) is/are involved in crosslinking polypeptide chains. How can these crosslinks be cleaved and prevented from reforming? 3) A polypeptide is subjected to the following degradative techniques results
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this polypeptide passes into the lumen of the ER‚ the signal peptide is cleaved by a membrane protein & the protein undergoes folding with the aid of BiP and other ER chaperones. The Signal Recognition Hypothesis states that secretory proteins have a signal sequence & contain built-in “address codes.” This plays an important role in this synthesis process because this hypothesis applies to nearly all protein trafficking pathways. 2. Dr. George Palade‚ with the help of James Jamieson‚ used
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1.There are three basic types of amino acids: 1) those with electrically charged side chains; 2) those with polar side chains; and 3) those with nonpolar side chains. A) True B) False2.All amino acids share a common “backbone”. Which chemical component (or components) is part of the backbone of an amino acid? A) An amino group (NH2) B) A carboxyl group (COOH) C) A hydrogen atom D) A central carbon atom that is commonly called an α-carbon atom E) All of the above3.Suppose that we link 100
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steps right to the end as you see where the students went wrong‚ interpretation of the results‚ and great answers to work sheet questions. Now‚ dive into the amazing world of catalase catalysis. Background Information: Enzymes are catalytic proteins‚ meaning they speed up – but do not create – chemical reactions‚ without being used up or altered permanently in the process. Although various enzymes use different methods‚ all accomplish catalysis by lowering the free energy of activation –
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structure I.a.i.1.a.i.1.1. Control protein‚ makes muscles move‚ found in all shapes bacteria and chromosomes shaped segregation I.a.i.1. Bacteria Phages I.a.i.1.a. Phages that attack bacteria‚ causes DNA from viruses to produce tubulin protein‚ to create more viruses I.a.i.1. Has a cell wall. Pourous material made of 2 sugars I.a.i.2. 3 amino acids linked known as a Peptide bridge I.a.i. Cell Wall I.a.i.1. Has Plasma membrane made of lipids‚ fats‚ proteins‚ attached to the cell‚ selectively
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1. 2. 3. All of Allison’s eggs will carry the X chromosome and 50% of Allison’s egg cells will carry the recessive allele (hexa). 4.a. There is a 25% chance that Allison and Tim will have a baby boy who is heterozygous for Tay-Sachs. b. No‚ the baby boy will not have Tay-Sachs he will be a carrier for the disease. The boy would only have the disease if he was homozygous recessive. | X | Y | X | XX | XY | X | XX | XY | 1:2 1:2 | T | t | T | TT | Tt | t | Tt | tt
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