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Worked solutions: Chapter 2 Human biochemistry
Worked solutions: Chapter 2 Human biochemistry

... The rate of reaction reaches a peak around 400C because this is just a little higher than the usual temperature of the body. The rate falls off rapidly above 420C because the high temperature denatures the enzyme and it is no longer able to function. The rate also falls off rapidly at temperatures b ...
Chapter 26 - Palm Beach State College
Chapter 26 - Palm Beach State College

... – A measure of the capacity to do biological work ...
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MMG 301, Lecture 19 Fermentation
MMG 301, Lecture 19 Fermentation

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MULTIPLE CHOICE

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Chapter 11 DNA and Genes
Chapter 11 DNA and Genes

... Chapter 11 DNA and Genes ...
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A1982NC82400001

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Lecture 33 - Carbohydrate Metabolism 1
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... • The most important function of the pentose phosphate pathway is to reduce two molecules of NADP+ to NADPH (nicotinamide adenine dinucleotide phosphate) for each glucose-6-phosphate that is oxidatively decarboxylated to ribulose-5-phosphate. • NADPH is functionally similar to NAD+ however, NADPH is ...
Respiration - Northwest ISD Moodle
Respiration - Northwest ISD Moodle

... 1 Which type of energy does food contain? 2 What is this energy converted to by other organisms? Give at least 3 examples. (i) (ii) (iii) 3 What name is given to the process by which organisms release energy? 4 What kind of energy is always released in respiration? ...
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... pancreas that catalyze the catabolism of carbohydrates, lipids, proteins, and nucleic acids. Nutrient absorption then occurs in the small intestine, primarily in the jejunum, and the nutrients enter the bloodstream. Indigestible materials and wastes enter the large intestine, where water is reabsorb ...
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... Horse and pigeon – both have 12 differences compared to humans 6. Is it possible that the two organisms you listed in question 7 are equally related to humans but not equally related to each other (HINT: are you sure that the amino acid differences in each organism’s cytochrome-c are the same)? EXPL ...
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... 2. Photosystems I and II are embedded in the internal membranes of chloroplasts (thylakoids) and are connected by the transfer of higher free energy electrons through an electron transport chain (ETC). [See also 4.A.2] 3. When electrons are transferred between molecules in a sequence of reactions as ...
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... amino group transfer from alanine to ketoglutarate to form Glutamate and pyruvate. YOl.ftext on pg 721 shows the mechanism for stage I of this reaction; the transformation of the amino acid to the keto acid (we also did this in lecture). ...
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Amino Acid Metabolism

... and leucine yielding CO2, and acyl-CoA derivatives. • Shares ancestry with pyruvate dehydrogenase complex, -KG dehydrogenase complex – another example of gene duplication ...
No Slide Title - Palm Beach State College
No Slide Title - Palm Beach State College

... hazards of ionizing radiation. – Distinguish between ions, electrolytes, and free radials. – Define the types of chemical bonds. ...
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LECT02 thermo

... “A spontaneous reaction is one that favors movement from order to disorder…occurs with a positive change in entropy” “To go from disorder back to order requires input of energy” Take Home: Living system take chemicals from their disordered environment and assemble them into ordered ...
hibernation
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... Glycogen synthase – active when dephosphorylated, inactive when phosphorylated; insulin vs. glucagon ...
Cellular-Respiration Student
Cellular-Respiration Student

... One CO2 is removed from each pyruvate released as a waste product Remaining 2-carbon portions are oxidized by NAD+ ...
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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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