An oxidative phosphorylation is the formation of

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An oxidative phosphorylation is the formation of A. `NADPH_(2)` in respiration B. `NADPH_(2)` ... C. ATP in respiration D. ATP in photosynthesis

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Description : Oxidative phosphorylation is (a) formation of ATP by transfer of phosphate group from a substrate to ADP (b) oxidation of phosphate group in ATP (c) addition of phosphate group to ATP (d) formation of ATP by energy released from electrons removed during substrate oxidation.

Last Answer : (d) formation of ATP by energy released from electrons removed during substrate oxidation.

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Description : What is oxidative phosphorylation? -Biology

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Description : Site of Krebs cycle and oxidative phosphorylation. -Biology

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Description : The chemical inhibiting oxidative phosphorylation, Adependent on the transport of adenine nucleotides across the inner mitochondrial membrane is (A) Oligomycin (B) Atractyloside (C) Dinitrophenol (D) Pentachlorophenol

Last Answer : Answer : B

Description : An uncoupler of oxidative phosphorylation is (A) Carboxin (B) Atractyloside (C) Amobarbital (D) Dinitrocresol

Last Answer : Answer : D

Description : The number of ATP produced in the oxidation of 1 molecule of NADPH in oxidative phosphorylation is (A) Zero (B) 2 (C) 3 (D) 4

Last Answer : Answer : A

Description : Chemiosmotic theory for oxidative phosphorylation has been proposed by (A) Chance and Williams (B) Pauling and Corey (C) S. Waugh (D) P. Mitchell

Last Answer : Answer : D

Description : In non shivering thermogenesis (A) Glucose is oxidized to lactate (B) Fatty acids uncouple oxidative phosphorylation (C) Ethanol is formed (D) ATP is burned for heat production

Last Answer : Answer : B

Description : All of the following statements about the enzymic complex that carries out the synthesis of ATP during oxidative phosphorylation are correct except (A) It is located on the matrix side of the inner ... inhibited by oligomycin (C) It can exhibit ATPase activity (D) It can bind molecular O2

Last Answer : D

Description : An uncoupler of oxidative phosphorylation such as dinitrophenol (A) Inhibits electron transport and ATP synthesis (B) Allow electron transport to proceed without ATP synthesis (C) Inhibits electron transport without impairment of ATP synthesis (D) Specially inhibits cytochrome b

Last Answer : B

Description : Tissues form lactic acid from glucose. This phenomenon is termed as (A) Aerobic glycolysis (B) Oxidation (C) Oxidative phosphorylation (D) Anaerobic glycolysis

Last Answer : D

Description : Glycogenin is (A) Uncoupler of oxidative phosphorylation (B) Polymer of glycogen molecules (C) Protein primer for glycogen synthesis (D) Intermediate in glycogen breakdown

Last Answer : C

Description : Oxidative phosphorylation is production of (a) ATP in photosynthesis (b) NADPH in photosynthesis (c) ATP in respiration (d) NADH in respiration

Last Answer : (c) ATP in respiration

Description : Which of these statements is incorrect? (a) Enzymes of TCA cycle are present in mitochondrial matrix. (b) Glycolysis occurs in cytosol. (c) Glycolysis operates as long as it is supplied ... that can pick up hydrogen atoms. (d) Oxidative phosphorylation takes place in outer mitochondrial membrane

Last Answer : (d) Oxidative phosphorylation takes place in outer mitochondrial membrane

Description : The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because (a) a proton gradient forms across the inner membrane (b) there is a ... mitochondrial proteins (d) ADP is pumped out of the matrix into the intermembrane space.

Last Answer : (a) a proton gradient forms across the inner membrane

Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.

Description : Emerson’s enhancement effect and Red drop have been instrumental in the discovery of (a) photophosphorylation and cyclic electron transport (b) oxidative phosphorylation (c) photophosphorylation and non-cyclic electron transport (d) two photosystems operating simultaneously.

Last Answer : (d) two photosystems operating simultaneously.

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Last Answer : a. Oxidative Phosphorylation

Description : Why the bacterium Treponemapallidum is difficult to culture? A-.Because it requires a great deal of water to reproduce B- .Because it is unable to use carbohydrates as an energy source ... TCA cycle and oxidative phosphorylation D- Because it requires extremely low temperature at which water freezes

Last Answer : Because it lacks the genes needed for TCA cycle and oxidative phosphorylation

Description : Oxidative phosphorylation involves (A) Electron transport system (B) Substrate level phosphorylation (C) Reaction catalyzed by succinic thiokinase in TCA cycle (D) None of the above

Last Answer : (A) Electron transport system

Description : The most probable mechanism of action of imidazole antifungal drugs is: A. They bind to ergosterol in fungal cell membrane and make it leaky B. They interfere with ergosterol synthesis by fungi C. They interfere with fungal mitosis D. They block oxidative phosphorylation in fungi

Last Answer : B. They interfere with ergosterol synthesis by fungi

Description : Which of these statements is incorrect ? (1) Enzymes of TCA cycle are present in mitochondrial matrix. (2) Glycolysis occurs in cytosol. (3) Glycolysis operates as long as it is supplied ... that can pick up hydrogen atoms. (4) Oxidative phosphorylation takes place in outer mitochondrial membrane.

Last Answer : (4) Oxidative phosphorylation takes place in outer mitochondrial membrane.

Description : During cyclic phosphorylation NADP is formed or not. a. No NADP formation b. No NADP utilization c. NADP is converted into NADPH d. All are correct

Last Answer : Ans: A

Description : During light reaction of photosynthesis, which of the following phenomenon is observed during cyclic phosphorylation as well as non-cyclic phosphorylation? (a) Release of O2 (b) Formation of ATP (c) Formation of NADPH (d) Involvement of PS I and PS II pigment systems

Last Answer : (b) Formation of ATP

Description : Net gain of ATP during oxidative decarboxylation of pyruvic acid? -Biology

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Description : Is Oxygen an Oxidative or Toxic ?

Last Answer : Oxygen oxidant.

Description : L-glutamic acid is subjected to oxidative deaminition by (A) L-amino acid dehydrogenase (B) L-glutamate dehydrogenase (C) Glutaminase (D) Glutamine synthetase

Last Answer : Answer : B

Description : Enzymes, vitamins and hormones are common in (A) Being proteinaceous (B) Being synthesized in the body of organisms (C) Enhancing oxidative metabolism (D) Regulating metabolism

Last Answer : Answer : D

Description : Pyruvate is converted into acetyl-CoA by (A) Decarboxylation (B) Dehydrogenation (C) Oxidative decarboxylation (D) Oxidative deamination

Last Answer : Answer : C

Description : Thiamin diphosphate is required for oxidative decarboxylation of (A) α-Keto acids (B) α-Amino acids (C) Fatty acids (D) All of these

Last Answer : Answer : A

Description : A cofactor required in oxidative decarboxylation of pyruvate is (A) Lipoate (B) Pantothenic acid (C) Biotin (D) Para aminobenzoic acid

Last Answer : Answer : A

Description : Vitamin B1 coenzyme (TPP) is involved in (A) Oxidative decarboxylation (B) Hydroxylation (C) Transamination (D) Carboxylation

Last Answer : Answer : A

Description : Oxidative degradation of acetyl CoA in the citric acid cycle gives a net yield of all the following except (A) FADH2 (B) 3 NADH (C) 2 ATP (D) 2CO2

Last Answer : Answer : C

Description : NADPH required for fatty acid synthesis can come from (A) Hexose monophosphate shunt (B) Oxidative decarboxylation of malate (C) Extramitochondrial oxidation of isocitrate (D) All of these

Last Answer : Answer : D

Description : Which co-enzyme is not involved in oxidative decarboxylation of pyruvic acid? (A) TPP (B) Mg++ (C) Biotin (D) CoA-SH

Last Answer : Answer : C

Description : Oxidative conversion of many amino acids to their corresponding -ketoacids occurs in mammalian: (A) Liver and kidney (B) Adipose tissue (C) Pancreas (D) Intestine

Last Answer : Answer : A

Description : Histidine is converted to histamine through the process of (A) Transamination (B) Decarboxylation (C) Oxidative deamination (D) Urea cycle

Last Answer : Answer : B

Description : Free ammonia is released during (A) Oxidative deamination of glutamate (B) Catabolism of purines (C) Catabolism of pyrimidines (D) All of these

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Description : The amino acid that undergoes oxidative deamination at significant rate is (A) Alanine (B) Aspartate (C) Glutamate (D) Glutamine

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Description : The main sites for oxidative deamination are (A) Liver and kidney (B) Skin and pancreas (C) Intestine and mammary gland (D) Lung and spleen

Last Answer : Answer : A

Description : The following co-enzyme is needed for the oxidative decarboxylation of ketoacids: (A) NADP+ (B) TPP (C) Folate coenzyme (D) Biotin coenzyme

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Description : Oxidative decarboxylation of pyruvate requires (A) NADP+ (B) Cytichromes (C) pyridoxal phosphate (D) COASH

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Description : Pyruvate dehydrogenase complex and α-ketoglutarate dehydrogenase complex require the following for their oxidative decarboxylation: (A) COASH and Lipoic acid (B) NAD+ and FAD (C) COASH and TPP (D) COASH, TPP,NAD+,FAD, Lipoate

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Description : The conversion of alanine to glucose is termed (A) Glycolysis (B) Oxidative decarboxylation (C) Specific dynamic action (D) Gluconeogenesis

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Last Answer : Answer: b, c A broad spectrum of metabolic abnormalities become apparent in sepsis and the systemic inflammatory response syndrome following shock. Disruption of the normal cycles of carbohydrate, ... acetyl coenzyme A. This results in reduced serum level of leucine, isoleucine and valine

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Last Answer : Answer: ABCD DISCUSSION: Oxidants are reactive oxygen metabolites that have both physiologic and pathophysiologic roles. As potent oxidizing agents, oxidants are involved in cytochrome P ... leukocyte infiltration and activation, causing further tissue damage by the release of cytotoxic proteases

Description : What are the co-enzymes necessary for oxidative decarboxylation of pyruvate?

Last Answer : Thiamine pyrophosphate, NAD, FAD, Lipoic acid, Co-enzyme A.

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Last Answer : (a) respiratory chain

Description : Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these (a) help in regulating metabolism (b) are exclusively synthesized in the body of a living organism as at present (c) are conjugated proteins (d) enhance oxidative metabolism.

Last Answer : (a) help in regulating metabolism