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Section 2.5
Section 2.5

... structure. These chains are sufficiently small to make these polysaccharides soluble in water, and easily transported in the organism. Enzymes are present to break down starch and glycogen into glucose. (b) In plants, starch is used for energy storage and cellulose is used for cell structure and str ...
Chemistry Unit
Chemistry Unit

... 19. Write the equation for the neutralization reaction between hydrochloric acid and barium hydroxide. Then balance the reaction. 20. Chemical A has a pH of 3.2 and chemical B has a pH of 2.8. Which is more basic and WHY? 21. Chemical A has a pH of 8.2, chemical B has a pH of 12.5, chemical C has a ...
l-glutathione 50 mg
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... Label Size: 75CC Bottle Size: 75CC Bulk Code: 301340 ...
EnERGY TRANSFORMATIONS IN NATURE
EnERGY TRANSFORMATIONS IN NATURE

... • The products are vitally important to all organisms. • In particular the carbohydrate (glucose) produced is used as the substrate for the process of cellular respiration. This is the process all organisms use to make usable energy in the form of ATP. • The Oxygen produced in photosynthesis is also ...
oxidation - mustafaaltinisik.org.uk
oxidation - mustafaaltinisik.org.uk

... Summary- Oxidation of Carbohydrate 1. Pyruvic acid from glycolysis is converted to acetyl coenzyme A (acetyl CoA). 2. Acetyl CoA enters the Krebs cycle and forms 2 ATP, carbon dioxide, and hydrogen. 3. Hydrogen in the cell combines with two coenzymes that carry it to the electron transport chain. 4 ...
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... nitrogen balance and nitrogen equilibrium and list conditions under which they may occur ...
Unit 1 Chemistry Study Guide
Unit 1 Chemistry Study Guide

... How are ionic bonds formed? How do polar covalent bonds form? What type of weak bond exists between water molecules? What type of bond forms from unequal sharing of electrons between atoms? How does carbon-12 differ from carbon-14? What type of bond forms between 2 atoms that are equally electronega ...
Evolution handout
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... 2. Would you be able to draw a “family tree” of the organisms named, showing when they diverged from one another? Explain. _____________________________________________ ____________________________________________________________________________ ______________________________________________________ ...
Metabolic effects of very-low-carbohydrate diets
Metabolic effects of very-low-carbohydrate diets

... During very low carbohydrate intake, the regulated and controlled production of ketone bodies causes a harmless physiological state known as dietary ketosis. Ketone bodies flow from the liver to extra-hepatic tissues (e.g., brain) for use as a fuel; this spares glucose metabolism via a mechanism sim ...
Introduction - Cedar Crest College
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... • The “Furnace” for making energy • mitochondria • Fuel • food: carbohydrates, fats, proteins • Helpers • oxygen • enzymes ...
Evidence for Evolution Student Answer Sheet
Evidence for Evolution Student Answer Sheet

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Acyl-CoA

... - Triglycerides (or triacylglycerols) are fatty acid esters (usually with different fatty acid R groups) of glycerol—see §1.4! - Triglycerides are largely stored in the adipose tissue where they function as “high-energy” reservoirs—due to being more reduced (carry more electrons, or more hydrogens!) ...
Her kommer logo
Her kommer logo

... mammals, arginine is not an essential amino acid. In fish however, arginine is an essential amino acid in adults, but the requirements in early life stages have been very little studied. In all fish species so far investigated, the urea cycle is active during early life, but is seldom active in the ...
TCA Cycle - eCurriculum
TCA Cycle - eCurriculum

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General Amino Acid Metabolism

... another is catalyzed by a family of transaminases which are also called aminotransferases. Most of the amino acids undergo these reaction except lysine and threonine The main reaction of amino Acid : A. Transamination: the tunneling of amino groups to glutamate i. Transamination is the exchange of t ...
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... Question5: [Entropy and Disorderness] A physical quantity, entropy-S, is often employed to quantify the degree of disordering for a thermodynamic system. Let  be the number of allowed states of N particles in the system. S can be then given by S  k B ln  where kB is the Boltzmann constant. If a ...
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The molecules of life - Breakthrough Science Society
The molecules of life - Breakthrough Science Society

... Again, in both of these nucleic acid chains, the nitrogen bases may be of different types (as shown in Fig 8). It has been found that DNA contains four types of nitrogen bases: adenine, thymine, guanine and cytosine. These are often abbreviated as A, T, C, and G. In RNA, uracil (U) is found in place ...
PowerPoint
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... photosynthesis (food) respiration (energy) amino acids (proteins/growth) lipids (cell membranes) pigments (energy/light capture) ...
Transcription and Translation
Transcription and Translation

... How many bases specify one amino acid? • Reading frame – the correct frame to read the aa’s in • Example – read sentence one letter off • Remove one, two or three bases… • Only by removing three bases is the reading frame unchanged A: Therefore, a codon must be three bases. ...
Respiration: ATP - Pearson Schools and FE Colleges
Respiration: ATP - Pearson Schools and FE Colleges

... Processes in cells that require energy are linked to chemical reactions that yield energy by an intermediary molecule, ATP. Using one type of molecule to transfer energy to many different energy-requiring processes makes it easier for these processes to be controlled and coordinated. All organisms u ...
MC 2
MC 2

... 1. Cohesion is the attractive force that water molecules exert on one another. Adhesion is the attractive force between water molecules and a surface. Both forces help explain capillary action, which is the ability of water molecules to rise up a narrow tube. Vascular plants, which include nearly al ...
lab.2 Precipitation of Proteins at isoelectric Point
lab.2 Precipitation of Proteins at isoelectric Point

... • The most important determinant its electrostatic charge. • The solubility of proteins in aqueous buffers depends on the distribution of hydrophilic and hydrophobic amino acid residues on the protein’s surface. Proteins that have high hydrophobic amino acid content on the surface have low solubilit ...
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Metabolism



Metabolism (from Greek: μεταβολή metabolē, ""change"") is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. The word metabolism can also refer to all chemical reactions that occur in living organisms, including digestion and the transport of substances into and between different cells, in which case the set of reactions within the cells is called intermediary metabolism or intermediate metabolism.Metabolism is usually divided into two categories: catabolism, the breaking down of organic matter by way of cellular respiration, and anabolism, the building up of components of cells such as proteins and nucleic acids. Usually, breaking down releases energy and building up consumes energy.The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy that will not occur by themselves, by coupling them to spontaneous reactions that release energy. Enzymes act as catalysts that allow the reactions to proceed more rapidly. Enzymes also allow the regulation of metabolic pathways in response to changes in the cell's environment or to signals from other cells.The metabolic system of a particular organism determines which substances it will find nutritious and which poisonous. For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The speed of metabolism, the metabolic rate, influences how much food an organism will require, and also affects how it is able to obtain that food.A striking feature of metabolism is the similarity of the basic metabolic pathways and components between even vastly different species. For example, the set of carboxylic acids that are best known as the intermediates in the citric acid cycle are present in all known organisms, being found in species as diverse as the unicellular bacterium Escherichia coli and huge multicellular organisms like elephants. These striking similarities in metabolic pathways are likely due to their early appearance in evolutionary history, and their retention because of their efficacy.
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