• 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
Who Wants To Be A Biologist?
Who Wants To Be A Biologist?

...  FADH2 donates electrons further down the ETC than NADH. This means the ATP yield for every FADH2 is only about 2 ATP, as opposed to 3 ATP per molecule of NADH. ...
I will henceforth cover the importance of eating simpler meals versus
I will henceforth cover the importance of eating simpler meals versus

... 3) Polysaccharides (“poly” means multiple or many), also known as complex carbohydrates or starches, are composed of 3 or more monosaccharides. No organism can use this kind of sugar in its complex form. Like disaccharides, these sugars must be broken down into simple sugars first. The breakdown of ...
11A
11A

... 4. When a water molecule is split, what is it split into? Where do all the resulting components end up? ...
Chapter 3 The Molecules of Cells
Chapter 3 The Molecules of Cells

... 3.14 DNA and RNA are the two types of nucleic acids  The amino acid sequence of a polypeptide is programmed by a discrete unit of inheritance known as a gene.  Genes consist of DNA(deoxyribonucleic acid), a type of nucleic acid.  DNA is inherited from an organism’s parents.  DNA provides direct ...
3.the nature of proteins
3.the nature of proteins

... called amino acids  Every amino acid possesses an amino end and a carboxylic acid end  There are twenty different naturally occurring amino acids  Amino acids differ by virtue of the nature of their R groups  Amino acids bond together forming peptide bonds  When two amino acids bond during a co ...
Lecture 27 - Redox and PDH
Lecture 27 - Redox and PDH

c) acidic amino acids
c) acidic amino acids

... mutations in the gene have been reported. The elevated phenylpyruvate, phenyllacetate (reduction product of phenylpyruvate) and phenylacetate (decarboxylation of phenlpyruvate) excreted in urine give urine its characteristic odor. The neurological symptoms and light color of skin and eyes are genera ...
An Agriscience Lesson Plan: Protein Needs
An Agriscience Lesson Plan: Protein Needs

... • No danger in over feeding protein, but it is usually the most expensive part of the feed • Once the animal has consumed all the protein needed for cell construction, muscle, fetal growth, etc., the rest is broken down for energy • Carbohydrates are a cheaper source of energy ...
Cells functions - RMC Science Home
Cells functions - RMC Science Home

... if cell grows uncontrollably this self-destruct mechanism is triggered to remove damaged cell  cancer must over-ride this to enable tumor growth ...
Exam 2
Exam 2

... 6. In the reduction of 2-butanone to (2)-butanol using the (S)-CBS reagent (2-methyloxazaborolidine + BH3), what is transferred in the critical step in the reaction mechanism? a) a hydride ion, H- b) a hydrogen radical, H c) a proton, H+ d) both hydrogens simultaneously as molecular hydrogen, H2 e) ...
Regulation of carbohydrate metabolism Intracellular - Rose
Regulation of carbohydrate metabolism Intracellular - Rose

... of regulatory enzymes by various metabolites. The important metabolites involved in regulation of carbohydrate metabolism include ATP, NADH, glucose-6phosphate, citrate, and fructose-2,6-bisphosphate. Many cell types respond to hormonal and neuronal signals that allow the coordination of metabolism ...
Student notes in ppt
Student notes in ppt

... A value for Gº’ < 0 confirms that this coupled redox reaction is favorable, i.e., it is favorable to oxidize isocitrate and reduce NAD+. In order to calculate the actual reduction potentials for conjugate redox pairs, you need to use the Nernst equation and know the actual concentration of the oxid ...
Derived copy of Bis2A 07.1 Glycolysis
Derived copy of Bis2A 07.1 Glycolysis

Unit 3 1 of 3
Unit 3 1 of 3

... 1) Describe the reactants and products of the Calvin cycle. 2) Explain why this cycle is dependent upon the light reactions. 3) Explain where this reaction occurs in the prokaryotic and eukaryotic cells. D) Write and explain the overall reaction for photosynthesis. E) Explain which products of photo ...
lightindependantphot..
lightindependantphot..

... Makes food, oxygen In which cycle does photosynthesis feature? carbon What is the waste product of photosynthesis? oxygen What is the splitting of water called? photolysis ...
Major Assignment: Modelling Carbohydrates, Lipids, and Proteins
Major Assignment: Modelling Carbohydrates, Lipids, and Proteins

... After all text questions, answer these questions under the heading “Additional Questions”. 1.) What is the function of glycogen? What is the function of cellulose? Explain why the molecular structures of each of these polysaccharides are well suited for their functions. (4 marks) 2.) Explain what 2 ...
Amino Acid Analysis
Amino Acid Analysis

... LCTech-en / Pickering / Amino Acid Analysis ...
Department of Chemistry and Clinical Biochemistry
Department of Chemistry and Clinical Biochemistry

... - chemical composition, - molecular weight, - spatial structure: homo- and copolymers, cross-linking. 2. Polymerization reactions: - addition polymerization (chain-reaction polymerization), - condensation (step-reaction polymerization). 3. Polymers as biomaterials: - polymer composites, - polymers u ...
Document
Document

... • additional membrane is needed for cell expansion; synthesize new membranes only by expansion of existing membranes • the basic structural and physical properties of membranes are determined by their lipid components—principally phospholipids, sphingolipids, and sterols such as cholesterol • early ...
Cellular Respiration
Cellular Respiration

... attaching it to something that is even more electronegative. In aerobic respiration, this “something” is oxygen, which is a highly electronegative atom. H+ travels with the electrons and attaches to the oxygen as well, forming H2O. Near the electron transport chain and also embedded in the cristae i ...
2 - Pleasantville High School
2 - Pleasantville High School

... 14. The equation below represents a summary of a biological process. carbon dioxide + water → glucose + water + oxygen This process is completed in 1. mitochondria 2. ribosomes 3. cell membranes 4. Chloroplasts ...
bio chapter 9
bio chapter 9

... molecules of PGAL is transferred to the cytoplasm and used in the synthesis of sugars and other carbohydrates. After three rounds of the cycle, six molecules of PGAL are produced. ...
Biotechnology 15 ECTS
Biotechnology 15 ECTS

Chapter 2 - OrgSites.com
Chapter 2 - OrgSites.com

... Dissociation of water molecules leads to acidic and basic conditions that affect living organisms 6. Dissociation of water a. Write down the chemical equation for the dissociation of water into hydrogen and hydroxide ...
H - IS MU
H - IS MU

... dehydrogenation reactions of substrates in catabolic processes ...
< 1 ... 507 508 509 510 511 512 513 514 515 ... 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