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Protein catabolism in metabolic acidosis: inhibition of glycolysis by
Protein catabolism in metabolic acidosis: inhibition of glycolysis by

... the proteasome [l] and of branched-chain keto-acid dehydrogenase, the enzyme thought to regulate branched chain amino-acid catabolism in skeletal muscle. The net effect is degradation of protein, accompanied by increased oxidation of the amino acids liberated [21. There is at present no explanation ...
The citric acid cycle • Also known as the Kreb`s cycle
The citric acid cycle • Also known as the Kreb`s cycle

... • Can you determine what the exact amount of energy is under these conditions?? ...
Fatty Acid Catabolism
Fatty Acid Catabolism

... – Run through beta oxidation SEVEN times • 7 QH2 = 10.5 ATP • 7NADH = 17.5 ATP ...
Text S1.
Text S1.

... glycerol (or glucose, see Figure II-2) into co2 and h2o. Abbreviations: PKL phosphoketolase; TAL transaldolase; TKT transketolase; PYROX pyruvate oxidase; GLYK glycerol kinase; G3PD1 glycerol 3-phosphate dehydrogenase; TPI triose phosphate isomerase; actp acetyl phosphate; pyr pyruvate; g3p glyceral ...
SLG MOCK MIDTERM – FOR PRACTICE ONLY
SLG MOCK MIDTERM – FOR PRACTICE ONLY

... 22. Which of the following can easily pass through a membrane’s lipid bilayer? A) Charged ions. B) Small, nonpolar, hydrophobic molecules. C) Large polar but uncharged molecules. D) All of the above. E) None of the above. 23. Which of the following statements about enzymes is true? A) The increase t ...
Cell Energy
Cell Energy

... Cell Energy • Other organisms cannot use sunlight directly. • They eat green plants. In that way, they obtain the energy stored in plants. ...
Enzymes - Hartismere
Enzymes - Hartismere

... digestion of proteins into smaller peptide. • It is produced in the pancreas and released in pancreatic juice into the small intestine. • These can then be broken down into amino acids by other protease that can then be absorbed by cells or into the blood stream. ...
chapter 3 - rci.rutgers.edu
chapter 3 - rci.rutgers.edu

... Primary structure of a protein is the linear sequence of amino acids in the protein. This is unique for each protein, and comes from sequences stored in the DNA genes. Secondary structure is repeated small-scale structure. The two most important secondary structures, the -helix and the -sheet, are ...
course outline - Department of LD
course outline - Department of LD

... Nutritional requirements of microorganisms and growth factors. Transport of nutrients in microorganisms based on nutrient requirement Microbial growth and conditions necessary for growth Generation of Energy An overview of metabolisms, the break down of glucose to Pyruvate Tricarboxylic acid cycle, ...
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File

... molecules that are embedded in the inner membrane of the mitochondria. The hydrogen atoms carried by NADH and FADH2 are separated into a hydrogen ion (H+) and electron. The electrons are passed to a chain of electron carrier molecules. As the electrons move from one carrier to the next, they release ...
FST 123 - Enzymology Homework IS `13
FST 123 - Enzymology Homework IS `13

... any assumptions you might need to make about the % acrylamide in the gel.) d. Sketch the elution profile of these proteins from a carboxymethyl cellulose ion exchange chromatography column, run at pH 6.25 (with a salt gradient, if necessary). Label the peaks. G-100 Column ...
NAME_________________ 1 BIO 451 13th
NAME_________________ 1 BIO 451 13th

... ammonia toxicity and why this is likely in this case, as well as the composition of collagen.] ...
survey of biochemistry - School of Chemistry and Biochemistry
survey of biochemistry - School of Chemistry and Biochemistry

Course Outline - KSU Faculty Member websites
Course Outline - KSU Faculty Member websites

... Lectures: once /week = 1h Tutorials: once/week = 3 h Practical: once/week = 3 h The course is conducted to two male student groups (A&B) and one female student group ...
Secondary Metabolism Part 1: Introduction, Fatty Acids and
Secondary Metabolism Part 1: Introduction, Fatty Acids and

... molecules needed for the life, growth and reproduction of an organism • Primary metabolites (e.g. carbohydrates, proteins, fats, nucleic acids) and their production via metabolic pathways are conserved among diverse organisms • Secondary Metabolites are more specialized molecules (e.g. toxins, volat ...
RNA and protein synthesis
RNA and protein synthesis

... • DNA provides workers with the instructions for making the proteins and the workers build the proteins • Other workers bring parts, the amino acids, over to the assembly line • The workers for protein synthesis are RNA molecules, which take the instructions from DNA and assemble the protein amino ...
Chapter 6
Chapter 6

... Some organisms do not have the enzymes for Kreb’s cycle or the electron transport system. Some organisms can metabolize glucose in the absence of oxygen. Metabolizing glucose in the absence of oxygen is called anaerobic respiration. ...
chapter 23
chapter 23

... Fats have another important commercial value based on their ability to react with sodium hydroxide, NaOH, commonly known as lye. When a fat combines with NaOH, an acid-base reaction called saponification occurs, and a salt and water form. This salt is made up of molecules that have long ...
Proteins
Proteins

... Amino Acids They are classified as , , , etc. amino acids according the carbon that bears the nitrogen. ...
1 MICROBIOLOGY - EBIO 3400 Dr. Steven K. Schmidt 1. In a
1 MICROBIOLOGY - EBIO 3400 Dr. Steven K. Schmidt 1. In a

... 13. Kluyver and van Niel proposed that all photosynthetic organisms were basically doing the following. a. AH2 + B ----> A + BH2 b. CO2 + 2H2 A ----> CH4 + 2H2 O + A c. 4H2 + CO2 ----> CH2 O + H2 O + 2A d. CO2 + 2H2 A ----> CH2 O + H2 O + 2A e. AH2 + B ----> CH2 O + H2 O + 2A 18. Magnetotactic Bacte ...
Plant cell Animal cell
Plant cell Animal cell

... proteins form enzymes which are biological catalysts which speed up reactions, catalase breaks down hydrogen peroxide to form oxygen and water. Enzymes are used in biological washing powders to attack stains and remove them from the cloth. Enzymes are specific this means that they only work on one s ...
Biochemisty
Biochemisty

... with respect to its two neighbors and contrasts with other glucan polymers such as: • starch (1-4-a-glucan) • callose (1-3-b-glucan). ...
RESPIRATION Metabolic processes that need energy include
RESPIRATION Metabolic processes that need energy include

Amino Acid Metabolism
Amino Acid Metabolism

... Metabolism • consists of both catabolic and anabolic processes • Catabolism comprises all processes, in which complex molecules are broken down to simple ones • Anabolism means any constructive metabolic process by which organisms convert substances into other components required for the organism's ...
Week 6 Pre-Lecture Slides
Week 6 Pre-Lecture Slides

... Pathway for synthesis of RNA, DNA ...
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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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