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Plant Mitochondrial Electron Transfer and Molecular
Plant Mitochondrial Electron Transfer and Molecular

... synthase is not part of the electron transfer chain per se, but its association with the inner membrane and its primary role in oxidative phosphorylation have led to its being referred to as complex V (Hatefi, 1985). The F, component of the ATP synthase is an integral multiprotein complex located in ...
Plant Mitochondrial Electron Transfer and Molecular
Plant Mitochondrial Electron Transfer and Molecular

... synthase is not part of the electron transfer chain per se, but its association with the inner membrane and its primary role in oxidative phosphorylation have led to its being referred to as complex V (Hatefi, 1985). The F, component of the ATP synthase is an integral multiprotein complex located in ...
U B
U B

... Water stress had no effect on leaf chlorophyll content (data not shown) nor on the protein composition of the thylakoid membranes (Fig. 1). Coomassie-stained gels did not reveal differences in the polypeptide pattern of thylakoid membranes nor in the abundance of specific proteins in control and dro ...
PPT slides - USD Biology
PPT slides - USD Biology

... • NADH or FADH2 from Krebs Cycle are fed through ETS with molecular oxygen serving as the final electron acceptor. – ½ O2 reacts with 2 protons to form water (“metabolic water”). ...
Energy and Metabolism - McGraw Hill Higher Education
Energy and Metabolism - McGraw Hill Higher Education

... it can only change from one form to another (from potential to kinetic, for example). The total amount of energy in the universe remains constant. The lion eating a giraffe at the beginning of this chapter is acquiring energy. Rather than creating new energy or capturing the energy in sunlight, the ...
INTRODUCTION - international journal of advances in
INTRODUCTION - international journal of advances in

... energy-rich molecules are produced within the matrix via the Citric Acid Cycle but are also produced in the cytoplasm by glycolysis. Reducing equivalents from the cytoplasm can be imported via the malate-aspartate shuttle system of antiporter proteins or feed into the electron transport chain using ...
Effects of oxygen on the growth and metabolism of Actinomyces
Effects of oxygen on the growth and metabolism of Actinomyces

... were identical: only two cytochrome b-type absorbtion bands were present (Table 3). Under anaerobic conditions these cytochromes are presumably part of an electron transport chain terminating with fumarate reductase [16], which enables the production of 1 mol of ATP per mol succinate formed [17]. Fe ...
Calvin cycle
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... Lysine is an amino acid which has the following elemental composition: C, H, O, N. In one experiment, 2.175 g of lysine was combusted to produce 3.94 g of CO2 and 1.89 g H2O. In a separate experiment, 1.873 g of lysine was burned to produce 0.436 g of NH2. The molar mass of lysine is 150 g/mol. Dete ...
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... molecules to two molecules of pyruvic acid (C3H4O3). Pyruvic acid is more oxidized than glucose The energy released from the oxidation is used to create 2 molecules of ATP from 2 ADP and 2 Pi This is an anaerobic process. Under anaerobic conditions the pyruvic acid can be fermented to lactic acid or ...
Lecture 3 - Glycolysis and Gluconeogenesis
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... molecules to two molecules of pyruvic acid (C3H4O3). Pyruvic acid is more oxidized than glucose The energy released from the oxidation is used to create 2 molecules of ATP from 2 ADP and 2 Pi This is an anaerobic process. Under anaerobic conditions the pyruvic acid can be fermented to lactic acid or ...
AKA TCA CYCLE, KREB`S CYCLE
AKA TCA CYCLE, KREB`S CYCLE

... Note that hormones can activate PDH by increasing Ca++ release into the cytosol and/or mitos REACTIONS OF THE TCA CYCLE •cyclic process involving participation of 8 enzymes •all localized in the mitochondria ...
Impact of an exceptionally hot dry summer on photosynthetic traits in
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... drought increased Ci, indicating metabolic limitation of photosynthesis. Chlorophyll a (Chl a) fluorescence measurements revealed reversible down-regulation of photosystem (PS) II activity during the day, which was accentuated by heat and drought and correlated with diurnal variation in zeaxanthin a ...
biologically important isotope hybrid
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... are intimately connected, probably by the agency of a phenylalanine hydroxylase. Figure 9 illustrates the pmr spectrum of 2H-cytochrome c ('H-leucine) in the oxidized form. In comparison to the spectra of Figure 1, a very simple pattern indeed is obtained. Three methyl groups (tentative assignment) ...
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... (a) Glycolysis/TCA Cycle: The NADH generated by glycolysis needs to get in the mitochondrion for the electron transport chain (NADH from TCA cycle is already there). The malate-aspartate shuttle is used. Electrons (H+) from NADH are used to generate malate (from oxaloacetate), which crosses the memb ...
Chemical Reactivity as Described by Quantum Chemical Methods
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... pioneering work by Heitler and London [2] on the hydrogen molecule in 1928 providing insight into, to quote Pauling, the Nature of the Chemical Bond [3]. However Quantum Chemistry is, at least in our opinion, more than the mere application of quantum mechanical principles to molecules and their inte ...
Regulation of the Citric Acid Cycle
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... 3 Molecules of NADH and 1 molecule of FADH2 are generated each turn of the Citric acid cycle. The eight electrons captured are transported by electron carriers to O2 generating a proton gradient that drives the oxidative phosphorylation of ADP to generate ATP. The stoichiometry of electron transport ...
Chem I Review Part 2
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... 69. Which of these ionic solids would have the largest lattice energy? A. NaCl B. NaF C. CaBr2 D. CsI E. CaCl2 70. Which of these solids would have the highest melting point? A. NaF B. NaCl C. NaBr D. NaI 71. Which of these elements has the greatest electronegativity? A. Na B. As C. Ga D. Cs E. Sb ...
Peroxidases and Catalases. Biochemistry, Biophysics, Biotechnology and Physiology Brochure
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... SINGLE SOURCE GUIDE TO PEROXIDASES AND CATALASES Reflecting the important historical discoveries and exciting research in the field in recent years, Peroxidases and Catalases: Biochemistry, Biophysics, Biotechnology and Physiology provides a much–needed systematic, up–to–date treatment of peroxidase ...
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Content Display : Unit 2 - Energy Metabolism : Lesson 1
Content Display : Unit 2 - Energy Metabolism : Lesson 1

... - Formation of ATP - The CK Reaction (cont.) The advantages of forming ATP by the CK reaction are: (a) The reaction is anaerobic, which means that no oxygen is required. Therefore this reaction is not dependent on the cardiorespiratory system or the so-called oxygen transport system. (b) This method ...
Carbohydrates
Carbohydrates

... • The former carbonyl oxygen becomes a hydroxyl group; the position of this group determines if the anomer is  or  • If the hydroxyl group is on the opposite side (trans) of the ring as the CH2OH moiety the configuration is  • In the hydroxyl group is on the same side (cis) of the ring as the CH2 ...
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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.
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