• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
World of Dairy Cattle Nutrition
World of Dairy Cattle Nutrition

... compound in plants. Plant tissues are high in carbohydrates such as starch, cellulose and hemicellulose. When a cow consumes carbohydrates, the ruminal microorganisms release enzymes that break them down into monosaccharides or “simple sugars.” The monosaccharides are then converted by the microorga ...
Rhizobium
Rhizobium

... The addition of SE of either control or gamma irradiated soybean seeds enhanced Rhizobium CFU than RE. SE of gamma irradiated seeds up to 50 Gy significantly increased Rhizobium CFU while 200 Gy caused non-significant decrease in the CFU relative to control. On the other hand, RE released from gamma ...
Macrocyclic Carbohydrate/Amino Acid Hybrid Molecules
Macrocyclic Carbohydrate/Amino Acid Hybrid Molecules

... Proteins are versatile molecules that are involved in almost all aspects of life.1 Proteins convert nutrients to energy in the metabolism, transport molecules through cell membranes, and mediate cell adhesion in tissue formation. Proteins also have many other functions and it would be difficult to f ...


... Choice C: Explain why it is important for biological membranes to be fluid, and discuss the role of cholesterol in this property of the membrane. A: A cis double bond will cause a “kink” in the fatty acid chain, reducing van der Waals interactions. This will lead to a decrease in the melting tempera ...
Task - The British Association of Sport and Exercise Sciences
Task - The British Association of Sport and Exercise Sciences

... (1) Transfer RNA (tRNA) has an anticodon that only binds to a particular mRNA codon AUCUUAACCUCCCCAGCAGCUGGGACUACAGCCACGCGCCACUGCAC ...
Ten remarks on peptide bond formation on the ribosome
Ten remarks on peptide bond formation on the ribosome

... A number of residues other than A2451 also showed pHdependent rearrangements. Two wobble pairs, A2453–C2499 and A2450–C2063, have been proposed as potential candidates to convey pH-dependent flexibility to the PTC [28]. Each of them is presumed to possess a near-neutral pK a and both lie in proximit ...
Model of Skeletal Muscle Energy Metabolism
Model of Skeletal Muscle Energy Metabolism

... MATERIALS S2: METABOLIC REACTIONS FLUX EXPRESSIONS The flux expressions for the compartmentalized lumped metabolic reactions that convert substrates to products in the two subcellular compartments (cytosol and mitochondria) in coupled with the energy controller pairs ATP-ADP and NADH-NAD+ are writte ...
Document
Document

... catalyzed chemical reactions in a cell.  Metabolic pathways are determined by enzymes.  Enzymes are encoded by genes. ...
Molecular analysis of an operon in Bacillus subtilis
Molecular analysis of an operon in Bacillus subtilis

... sequence with proteins in the Swiss-Prot database showed about 30% sequence homology to a large number of ATP-binding proteins, which all belong to the superfamily of ABC transporters. Sequence comparison shows that EcsA displays similarities with ATP-binding components of ABC-type transporters. The ...
From Structure to Function
From Structure to Function

... it unfavorable for them to exchange a proton. This occurs in many enzyme active sites; for example, in aspartate aminotransferase, a lysine and an aspartic acid are both involved in binding the pyridoxal phosphate cofactor, but in the environment of the active site their proton affinities are adjust ...
Acid-Base Balance
Acid-Base Balance

... cells of the tubule are not permeable to bicarbonate ions. The steps involved in supplying bicarbonate ions to the system are seen in Figure 3 (Conservation of Bicarbonate in the Kidney ) and are summarized below: ...
Enzymology BIOC231
Enzymology BIOC231

... α-Amylases (EC 3.2.1.1) is an enzyme of glycoside hydrolases mainly produced in the salivary glands and pancreas, play a well-known role in hydrolyzing a-1,4- glucosidic bonds between glucose in starch ( consists of two types of polysaccharide amylose, amylopectin) and maltose is release. Elevated l ...
digestion in the pig - The Australian Society of Animal Production
digestion in the pig - The Australian Society of Animal Production

... is of particular importance for young pigs, where there is rapid gastrointestinal development, but it must be taken into consideration in formulating diets from birth, through pregnancy and lactation. The following four papers discuss the development of the digestive system and digestibility, with p ...
Overexpression of C4-cycle enzymes in transgenic C3 plants: a
Overexpression of C4-cycle enzymes in transgenic C3 plants: a

... by carbonic anhydrase (1) in the cytosol of the mesophyll cells and fixed by oxygen-insensitive PEPC (2). The oxaloacetate formed is imported into the stroma of the mesophyll chloroplasts and reduced by NADP-MDH (3) using redox equivalents from non-cyclic electron transport. Malate is exported from ...
Sulfur Part II: Sulfur and Sulfur Compounds in the Human Body
Sulfur Part II: Sulfur and Sulfur Compounds in the Human Body

...  Biotin (C10H16N2O3S) – also known as vitamin B7, is a water-soluble Bcomplex vitamin. A vitamin is an organic compound required as a nutrient in tiny amounts with the B-complex vitamins (8 of them) playing important roles in cell metabolism. Functions Biotin is attached, as a cofactor/ coenzyme (e ...
Metabolomic and flux‐balance analysis of age‐related decline of
Metabolomic and flux‐balance analysis of age‐related decline of

... sudden oxygen influxes that its inactive oxidative pathways and damaged mitochondria cannot immediately metabolize, resulting in the creation of reactive oxygen species (ROS) (Ambrosio et al, 1987). It has been suggested that one way by which hypoxia-tolerant organisms prevent these dangerous imbalan ...
CHAPTER 1 1.1 Introduction In many developing countries, herbal
CHAPTER 1 1.1 Introduction In many developing countries, herbal

... (Kamboj, 2000). This is supported by literature in behavioural and pharmacological sciences with animals and people using a number of different plants for the control of disease symptoms and related illnesses in their environment (Hart, 2004; Cousins and Huffman, 2002). One of such disorder is diabe ...
THE COMPLEMENT SYSTEM IN HUMAN DISEASE Joseph C. …
THE COMPLEMENT SYSTEM IN HUMAN DISEASE Joseph C. …

... What pathologic changes would explain this patients symptoms? What is the effect of defective C1 esterase levels on complement system regulation? What other inflammatory mediator systems are effected by C1esterase inhibitor? Why are these patients not at significant risk for bacterial infection? ...
Divergent Evolution of Function in the ROK Sugar
Divergent Evolution of Function in the ROK Sugar

... Biochemistry synthetic small-molecule catalysts (23). Specificity is defined by the ratio of second-order rate constants, kcat/Km, that govern the transformations of two competing substrates. Several models have been put forth to explain the structural, thermodynamic, and kinetic basis for enzyme sp ...
Rumen Protected Fat
Rumen Protected Fat

... More beneficial when the animal's requirement for protein is not met through microbial protein In early lactation period of high yielders (15 kg/day)  In rapidly growing (1 kg/day) calves  Animals thriving on poor quality roughages ...
Assigning and Using Oxidation Numbers in Biochemistry Lecture
Assigning and Using Oxidation Numbers in Biochemistry Lecture

Nutrition Lecture 7/8 - Website of Neelay Gandhi
Nutrition Lecture 7/8 - Website of Neelay Gandhi

... via the lymphatic system. Then they are transported in blood by lipoproteins or specific binding proteins. Water-soluble vitamins are absorbed by the intestine and carried by the circulatory system to the specific tissues that they will be put to use. The different types of vitamin are differentiate ...
Analyzing Amino-Acid Sequences to Determine Evolutionary
Analyzing Amino-Acid Sequences to Determine Evolutionary

... divergingfrom a common ancestor,the greaterthe differencesthat can be expectedin the amino-acid sequencesof their proteins. Twoproteins are commonly studied in attempting to deduce evolutionaryrelationships from differencesin amino-acid sequences.One is cytochromec, and the other ishemoglobin. Cytoc ...
Organic Molecules chapt03
Organic Molecules chapt03

... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Understanding Our Environment
Understanding Our Environment

... Johnson - The Living World: 3rd Ed. - All Rights Reserved - McGraw Hill Companies ...
< 1 ... 122 123 124 125 126 127 128 129 130 ... 905 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report