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Respiration2
Respiration2

... It is important that you learn both the word and chemical equation. In the above equations we see that glucose is broken down by oxygen to release energy with carbon dioxide and water being produced as by-products of the reaction. Approximately 2900 kJ of energy is released when one mole of glucose ...
Chapter 3: Energy for Cells
Chapter 3: Energy for Cells

... The light reactions require sunlight energy. As sunlight strikes chlorophyll on the surface of the chloroplast, the  energy absorbed powers a reaction that breaks down a water molecule,  releasing the oxygen. The hydrogen from the water is split into protons and electrons.  The  electrons have absor ...
PPT
PPT

... Outline ...
2. Organic macromolecules Chemistry Grade 12
2. Organic macromolecules Chemistry Grade 12

... Examples of biological macromolecules include carbohydrates and proteins, both of which are essential for life to survive. Carbohydrates include the sugars and their polymers, and are an important source of energy in living organisms. Glucose is a carbohydrate monomer. Glucose is the molecule that i ...
General Chemistry 110 Quiz 1
General Chemistry 110 Quiz 1

... Discuss the effect of phosphorylation on glycogen metabolism and glycolysis. Mention at least one hormone. (15 points) ...
Production of lactic acid
Production of lactic acid

... Well, it depends on your circumstance and goals. Most of us are non-competitive or non-elite active individuals, who just want to exercise to gain health benefits, feel good and possibly lose weight. Aerobic exercise conditions enable you to exercise for long periods of time, potentially benefiting ...
answer key
answer key

... spatially separated from the Calvin cycle (the former occurs in mesophyll cells and the latter in bundle-sheath cells), whereas in CAM plants the two are temporally separated (CO 2 fixation occurs at night and the Calvin cycle during the day, both within the same cells). ...
清华大学本科生考试试题专用纸
清华大学本科生考试试题专用纸

... C. The cytosolic and matrix pools of CoA are distinct and separate. D. Once fatty acyl groups have entered the matrix, they are committed to oxidation to acetyl-CoA. E. All of the above are true. Answer(s): E 17. In nucleotide metabolism, all of the following are true except: A. The commitment step ...
Journal of the American Chemical Society, 118, pp. 7646.
Journal of the American Chemical Society, 118, pp. 7646.

... aspects. The references are complete through 1993 and include a few from 1994 and 1995. It cites review articles for earlier work. Most chapters are consistent in the use of abbreviations, with a few exceptions. The sialic acids are a class of carboxylic acids based on the ninecarbon sugar, neuramin ...
Enzymes - africangreyparrott.com
Enzymes - africangreyparrott.com

... Enzymes are proteins usually ending in “ase” They change but are not changed, the definition of a catalase ...
http://teach.genetics.utah.edu/content/cells/InsideaCellWorksheet.pdf
http://teach.genetics.utah.edu/content/cells/InsideaCellWorksheet.pdf

... Pores selectively allow molecules in and out. ...
biochemistry of proteins and nucleic acids
biochemistry of proteins and nucleic acids

... Principle of the method. At interaction of ferric phenolate having violet colour, with lactate, ferric lactate of yellow-green colour is formed. Course of work. To 20 drops of phenol solution add 1-2 drops of ferric chloride solution. Solution of ferric phenolate of violet colour is produced. In the ...
Evolution of the citric acid cycle and respiratory
Evolution of the citric acid cycle and respiratory

... only to ensure redox balance (various other accessory oxidants including certain inorganic compounds could have functioned in similar fashion [10]). I have proposed [1] that the soluble fumarate reduction mechanism gradually evolved by addition of intermediary electron carriers and incorporation of ...
Proteins
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... Codon: The sequence of 3 nucleotides in DNA/RNA that encodes for a specific amino acid. mRNA (messenger RNA): A ribonucleic acid whose sequence is complementary to that of a proteincoding gene in DNA. Ribosome: The organelle that synthesizes polypeptides under the direction of mRNA rRNA (ribosomal R ...
Chapter 8
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... – MOTION energy in the movement of objects. The faster they move, the more energy. Wind is motion energy. When a car comes to a total stop, releases all motion energy in uncontrolled instant. – SOUND -movement of energy through substances in longitudinal waves. Sound produced when force causes objec ...
Cellular Respiration - Parkway C-2
Cellular Respiration - Parkway C-2

... by breaking down glucose and other food molecules. When oxygen is present, it’s aerobic; when oxygen is absent, it’s anaerobic. There are four pathways in cellular respiration (not all function at the same place or at the same time): glycolysis, fermentation (2 types – alcoholic and lactic acid), Kr ...
Practice Questions 1: Genetics
Practice Questions 1: Genetics

... chains folded the same way and the same sequence of simple sugars chains folded the same way and the same sequence of amino acids chains folded differently and a different sequence of simple sugars chains folded differently and a different sequence of amino acids ...
Microbiology Babylon university 2nd stage pharmacy collage
Microbiology Babylon university 2nd stage pharmacy collage

... subcellular differentiation, clearly demarcated by membranes in eukaryotes, is lacking in prokaryotes. Indeed, some prokaryotes form membrane-bound subcellular structures with specialized function such as the chromatophores of photosynthetic bacteria. Prokaryotic Diversity The small size of the prok ...
Plant Respiration Exchange of Gases in Plants - E
Plant Respiration Exchange of Gases in Plants - E

6.3 Protein Synthesis Translation
6.3 Protein Synthesis Translation

... is able to assemble the polypeptide chain, it is the tRNA that must deliver the amino acid to the ribosomes for assembly. ...
Cell Membrane PPT - Gulfport School District
Cell Membrane PPT - Gulfport School District

Energy unit, part 5, Chemoheterotrophic Nutrition
Energy unit, part 5, Chemoheterotrophic Nutrition

... ○ Photosynthetic Autotrophs ○ Chemosynthetic Autotrophs ● Why food molecules need to be broken down into smaller molecules for energy to be harvested from them. ● The molecule that is oxidized and the molecule that is reduced in any REDOX reaction. ...
Chapter 7: Protein
Chapter 7: Protein

... Regulation ...
biotreated bran - MSU College of Engineering
biotreated bran - MSU College of Engineering

... Pure H2 ...
The Cell, 5e
The Cell, 5e

... Liver forms VLDL by lipogenesis from sugars VLDL donates protein to chylomicron, which binds LPL on cells and is cleaved to release FA into muscle, adipose ...
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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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