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H +
H +

... Where is this process taking place? How do the electrons get shuttled down the ETC? How is electronegativity involved? What molecule is the final acceptor of the electrons? What is the byproduct that is generated during the ETC? The ETC does not generate ATP. What is it’s purpose? ...
ORGANIC CHEMISTRY NOTES , 2s , 2px , 2py , 2pz , 2s , 2px , 2py
ORGANIC CHEMISTRY NOTES , 2s , 2px , 2py , 2pz , 2s , 2px , 2py

... Phenols are way more acidic than alcohols, and its delocalized ring is more reactive than benzene. The Lone pair on the oxygen atom, starts to overlap with the delocalized electron cloud on the benzene. The makes the oxygen-benzene bond even stronger and more stable. Hence nucleophilic substitution, ...
eprint_1_29837_493
eprint_1_29837_493

... a. do not alter the reaction equilibrium b. not consumed in overall reaction c. required only in very small quantities. 3. They have enormous power for catalysis . 4. Enzymes are highly specific for their substrate . 5. Enzymes possess active sites at which interaction with substrate takes place . 6 ...
Cycles of Matter PP
Cycles of Matter PP

... the movement of a particular chemical through the biological and geological, or living and non-living, parts of an ecosystem. ...
chp0-Intro
chp0-Intro

... Warning: The textbook is inconsistent in denoting radicals. In many cases it shows a “dot” to indicate the one unpaired electron. However, some examples in the textbook do not have the dot so the reader is left to assume the species is a radical. You should know that species such as OH, CH3, ClO, H ...
Student Questions and Answers October 15, 2002
Student Questions and Answers October 15, 2002

... Q 13. How can the enzyme lower the activation energy of a reaction (to reach the transition state) when, in fact, as you mentioned, the substrate turns into the transition state by itself? Does the enzyme catch the substrate a little bit earlier? Is the transition state with an enzyme at a lower ene ...
Chemistry of Opioids
Chemistry of Opioids

Biology - Saint Mary`s College High School
Biology - Saint Mary`s College High School

... V.1: identify on a dissected frog or a model human the organs of the digestive system ...
Document
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... which is like a “glove” that the substrate fits into. ...
Oxidation
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... Oxidative decarboxylation 2 (pyruvate acetyl CoA), produces 2(N AD + + H + ) ...
Ch. 13: Translation and Proteins
Ch. 13: Translation and Proteins

... Polyribosomes as seen under the electron microscope. They were taken from giant salivary gland cells of the midgefly, Chironomus thummi. Note that the nascent polypeptide chain is apparent as it emerges from each ribosome. Its length increases as translation proceeds from left (5’) to right (3’) al ...
Baumgard Post absorptive CHO metabolism
Baumgard Post absorptive CHO metabolism

... • Only the liver can secrete/release glucose • Muscle can not ...
Protein Synthesis Instructions
Protein Synthesis Instructions

... The structure and operation of the human body (as well as all other organisms) is based on proteins. Everything from skin and bones to hair, muscle and internal organs are constructed from proteins. The enzymes that digest food and the hormones that regulate metabolism are all proteins. Although som ...
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Biochemistry Spring 2015 Exam III Name: Points
Biochemistry Spring 2015 Exam III Name: Points

LABORATORY MANUAL ON BIOLOGICAL CHEMISTRY
LABORATORY MANUAL ON BIOLOGICAL CHEMISTRY

... From 1995 to 1998, the head of biochemistry unit was prof. M.F. Tymochko. The main goal of his scientific research was the investigation of the fundamentals of adaptive-compensatory processes under various experimental conditions with emphasize on changes in oxygen-dependent reactions. He studied me ...
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BioN04 Enzymes 2015 v2

... – ATP synthase is an enzyme that synthesizes ATP ...
biochemistry of fish - Central Institute of Fisheries Technology
biochemistry of fish - Central Institute of Fisheries Technology

... feed industry is complicated by variable availability of raw material and expensive production process because of the comparatively low enzyme concentration. In future, some of these enzymes may be produced more profitably by recombinant DNA or gene technology. Another approach to enzyme engineering ...
Energy systems.
Energy systems.

... for proper functioning. Besides, the required fuels (ATP and PC) have already been stored in the muscle cells ...
Energy systems.
Energy systems.

... for proper functioning. Besides, the required fuels (ATP and PC) have already been stored in the muscle cells ...
Overview of ATP Production
Overview of ATP Production

... cells can use the energy of sunlight or energy /calories stored in carbohydrates, they must transfer the energy to molecules of ATP. – ATP is composed of adenine, ribose, and three phosphate groups. – ATP transfers energy to many different chemical reactions; almost all metabolic pathways directly o ...
Source–Sink Relationships
Source–Sink Relationships

... called the Calvin or Benson–Calvin cycle), which is housed in the chloroplast stroma (Figure 4b). The former comprises two photosystems operating sequentially to achieve lightdriven reduction of NADP 1 with concomitant production of a proton gradient, which is used to generate ATP. NAPDH and ATP thu ...
ElLilkova_slides
ElLilkova_slides

... coordinates of the particles (or a group of particles) of the investigated systems. The set of CVs should be able to clearly distinguish between the initial and the final state and preferably the intermediates. Ideally, the CVs should describe all the slow events that are relevant to the investigate ...
02. MP and MPM that contain polysaccharides
02. MP and MPM that contain polysaccharides

... Fructan - is polysaccharides, which are built from the remains Dfructose:  They are products of phosphorylation of sucrose. ...
To Fold or Not To Fold
To Fold or Not To Fold

... • It takes about a day to simulate a nanosecond (1/1,000,000,000 of a second) on a computer. • Unfortunately, proteins fold on the tens of ...
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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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