• Study Resource
  • Explore
    • 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 →
 
Sign in Sign up
Upload
Polynucleotide Phosphorylase and Mitochondrial
Polynucleotide Phosphorylase and Mitochondrial

... and Gregus, 2009a), and the bacterial enzyme phosphotransacetylase (Németi and Gregus, 2009b). Each of these enzymes utilizes Pi for cleaving the substrate (termed phosphorolysis) into two compounds, one of which is a phosphorylated metabolite. When AsV substitutes for Pi, arsenolysis is carried ou ...
Chapter 4: Cellular Metabolism
Chapter 4: Cellular Metabolism

... (Outcome 4.11) 14. At the end of the chain, hydrogen atoms and oxygen combine to form ____________________________________________________________ _________________________________________________________________ . (Outcome 4.12) 15. Excess glucose in cells may enter ______________________ and be l ...
7vВyВtvphy  hБq  purАvphy  АrpuhБvЖАЖ  Вs  ЕrqИpЗvЙr
7vВyВtvphy hБq purАvphy АrpuhБvЖАЖ Вs ЕrqИpЗvЙr

... where ] indicates the number of exchanged electrons; the charge balance is assumed in Eq.(1), in that the Oxidized Form has higher oxidation state than Reduced Form via electron donation. An oxidation or a reduction cannot occur in isolation. A redox reaction, i.e. a reaction with coupled oxidation ...
Jeopardy
Jeopardy

... Light Independent reactions ...
respiration
respiration

... 2b Differences between burning and respiration: vi In burning, energy is released in the forms of heat and light while in respiration, energy released is used to form ATP while some is lost as heat . ...
AN ABSTRACT OF THE THESIS OF
AN ABSTRACT OF THE THESIS OF

... formerly identified as Sites 23 and 55 in a western portion of the NAWS facility. Tanks consisted of one 550 gallon concrete oil/water separator (Site 23) installed in 1970 and operated until 1989 when it was removed and replaced, and a 500 gallon steel UST (Site 55) operated from the late 1950s to ...
New insight into the photoheterotrophic growth of the
New insight into the photoheterotrophic growth of the

... mesaconate has not been identified/purified to date, nor has a putative gene encoding this enzyme been detected in the genome. Recently, the same group observed the expression of crotonyl-CoA carboxylase/reductase, the key enzyme of the EMC pathway, in Rs. rubrum grown photoheterotrophically on acet ...
Slide 1
Slide 1

... b-hydroxyl acyl step ...
Biology: Concepts and Connections, 6e (Campbell)
Biology: Concepts and Connections, 6e (Campbell)

... B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid because they are tightly packed against one another. E) form impermeable layers for cells . Answer: C Topic: 5.1 Skill: ...
Product Data Sheet Your assurance of quality®
Product Data Sheet Your assurance of quality®

... Athlete’s Choice Pro Elite combines the world’s finest sources of creatine including, CreaPure®, Creatine MagnaPower®, and Creatine Pyruvate. Pro Elite also provides powerful supportive benefits of Peak ATP®, Ribose, Alpha Lipoic Acid, Taurine, Cinnamon Extract, Biotin and Vitamin C. The synergistic ...
Multiple Choice
Multiple Choice

... Covalent network and molecular substances are nonconduction in all states, but C.N. has a high melting pt. Lowest melting point would be for non-polar molecule with the lowest MM (weakest dispersion forces). +H because bonds are broken; +S because liquid is more disordered; -V because water is mo ...
Document
Document

... • Three stages • Activation of fatty acids occurring in the cytosol • Transport of fatty acids into mitochondria • Beta-Oxidation proper in the mitochondrial matrix • Fatty acids are oxidized by most of the tissues in the body. • Brain, erythrocytes and adrenal medulla cannot utilize fatty acids fo ...
glycolysis, gluconeogenesis, and the pentose phosphate pathway
glycolysis, gluconeogenesis, and the pentose phosphate pathway

... to yield the acetyl group of acetyl-coenzyme A; the acetyl group is then oxidized completely to CO2 by the citric acid cycle (Chapter 16). The electrons from these oxidations are passed to O2 through a chain of carriers in the mitochondrion, to form H2O. The energy from the electron-transfer reactio ...
CX3 creatine
CX3 creatine

... Creatine plays a vital role in energy production by recycling ATP (adenosine triphosphate) in muscles. ATP is the body’s major molecule that produces “explosive” chemical energy within cells and is also known as “molecular currency” since it transfers energy within all cells of the body. Approximate ...
Anaerobic Respiration Using a Complete Oxidative TCA Cycle
Anaerobic Respiration Using a Complete Oxidative TCA Cycle

... O-antigen side chains on the outer membrane lipopolysaccharide (LPS) (10), which could be important for surface sensing during initiation of swarming (11). Indeed, disruptions in genes responsible for LPS and cell wall biosynthesis affect swarmer cell elongation (8, 11). In contrast, the surface cap ...
Electron Transport, NADPH Turnover, and Metabolism of Reactive
Electron Transport, NADPH Turnover, and Metabolism of Reactive

... to inhibit NDin(NADPH) (or DPI to inhibit both) will measure only NDin(NADH). NADPH oxidation in the presence of Ca2+ to activate the NDin(NADPH) and rotenone to inhibit complex I will measure only NDin(NADPH). Note that short-chain quinones should not be used as electron acceptors in these assays a ...
Contents - Elsevier
Contents - Elsevier

... oxidation–reduction coenzymes. They may be considered either as carriers of hydrogen or as carriers of electrons (H = H+ + e–) in metabolic reactions. When NAD+ becomes reduced by dehydrogenation of an alcohol, one of the hydrogen atoms removed from the alcohol becomes firmly attached to the NAD+, c ...
Fatty Acids :biosynthesis
Fatty Acids :biosynthesis

... Summary of Fatty Acid Biosynthesis • When the cell energy level is high, rather than being used by the Krebs cycle, acetyl CoA is transferred from the mitochondrial matrix to the cytosol. • In the cytosol, acetyl CoA is converted to malonyl CoA, which is used by fatty acyl synthase (FAS) for the sy ...
Biology: Concepts and Connections, 6e (Campbell)
Biology: Concepts and Connections, 6e (Campbell)

... B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid because they are tightly packed against one another. E) form impermeable layers for cells . Answer: C Topic: 5.1 Skill: ...
Glycolysis
Glycolysis

... 3. Couple the transfer of the phosphate to ADP to form ATP. Stage I A preparatory stage in which glucose is phosphorylated and cleaved to yield two molecules of glyceraldehyde-3phosphate - uses two ATPs Stage II glyceraldehyde-3-phosphate is converted to pyruvate with the concomitant generation of f ...
Lactate - University of Iowa Health Care
Lactate - University of Iowa Health Care

... Because this is a paper written by a beginning student as an assignment, there are no guarantees that everything is absolutely correct and accurate. In view of the possibility of human error or changes in our knowledge due to continued research, neither the author nor The University of Iowa nor any ...
PDF - School of Chemical Sciences
PDF - School of Chemical Sciences

... close to the value of 1.0 ± 0.1 for this mutant with NADP (DV ⁄ KNADP). The slightly higher value for NAD (Table 2), may reflect that PTDH-E175A ⁄ A176R is not strictly ordered with respect to substrate binding because if NAD is the compulsory first substrate to bind, DV ⁄ K for the first substrate sho ...
Slide 1
Slide 1

... The exact molecule where p’syn begins…. ...
Module 1. General principles of metabolism. Metabolism of
Module 1. General principles of metabolism. Metabolism of

... D. The doctor has given up on the patient and administers ethanol for sedation E. B and C 91. If it is known that the only two ionizable residues in the active site are both glutamates, which conclusion can be drawn? A. * The glutamates have different microenviroments which cause their pKa's to diff ...
Structural and mechanistic studies of enolase George H Reed
Structural and mechanistic studies of enolase George H Reed

... there is considerable interest in understanding the means by which enolase accomplishes this difficult ionization step. The second step in the reaction, elimination of O H - from the intermediate, is also expected to require assistance in the form of general-acid catalysis. Indeed, measurements of i ...
1 2 3 4 5 ... 286 >

Light-dependent reactions

In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place. The thylakoid membrane contains some integral membrane protein complexes that catalyze the light reactions. There are four major protein complexes in the thylakoid membrane: Photosystem II (PSII), Cytochrome b6f complex, Photosystem I (PSI), and ATP synthase. These four complexes work together to ultimately create the products ATP and NADPH.[.The two photosystems absorb light energy through pigments - primarily the chlorophylls, which are responsible for the green color of leaves. The light-dependent reactions begin in photosystem II. When a chlorophyll a molecule within the reaction center of PSII absorbs a photon, an electron in this molecule attains a higher energy level. Because this state of an electron is very unstable, the electron is transferred from one to another molecule creating a chain of redox reactions, called an electron transport chain (ETC). The electron flow goes from PSII to cytochrome b6f to PSI. In PSI, the electron gets the energy from another photon. The final electron acceptor is NADP. In oxygenic photosynthesis, the first electron donor is water, creating oxygen as a waste product. In anoxygenic photosynthesis various electron donors are used.Cytochrome b6f and ATP synthase work together to create ATP. This process is called photophosphorylation, which occurs in two different ways. In non-cyclic photophosphorylation, cytochrome b6f uses the energy of electrons from PSII to pump protons from the stroma to the lumen. The proton gradient across the thylakoid membrane creates a proton-motive force, used by ATP synthase to form ATP. In cyclic photophosphorylation, cytochrome b6f uses the energy of electrons from not only PSII but also PSI to create more ATP and to stop the production of NADPH. Cyclic phosphorylation is important to create ATP and maintain NADPH in the right proportion for the light-independent reactions.The net-reaction of all light-dependent reactions in oxygenic photosynthesis is:2H2O + 2NADP+ + 3ADP + 3Pi → O2 + 2NADPH + 3ATPThe two photosystems are protein complexes that absorb photons and are able to use this energy to create an electron transport chain. Photosystem I and II are very similar in structure and function. They use special proteins, called light-harvesting complexes, to absorb the photons with very high effectiveness. If a special pigment molecule in a photosynthetic reaction center absorbs a photon, an electron in this pigment attains the excited state and then is transferred to another molecule in the reaction center. This reaction, called photoinduced charge separation, is the start of the electron flow and is unique because it transforms light energy into chemical forms.
  • studyres.com © 2023
  • DMCA
  • Privacy
  • Terms
  • Report