Description : Glucose is to photosynthesis as pyruvate is to _____. a. Oxidative Phosphorylation b. Glycolysis c. Fermentation d. Citric Acid Cycle
Last Answer : a. Oxidative Phosphorylation
Description : The conversion of alanine to glucose is termed (A) Glycolysis (B) Oxidative decarboxylation (C) Specific dynamic action (D) Gluconeogenesis
Last Answer : D
Description : Most of the energy in aerobic respiration of glucose is captured by A- substrate-level phosphorylation B- electron transport of electrons from NADH C- long-chain fatty acid oxidation D- the enzyme formic-hydrogen lyase
Last Answer : electron transport of electrons from NADH
Description : The following are true about the oxidation of glucose: a. glycolysis produces 3% of the energy ultimately obtained from glucose b. the first stage of glycolysis involves phosphorylation of glucose to 1,6-fructose biphosphate. c. glucose enters the Kreb's cycle as pyruvate d. all above
Last Answer : all above
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 : 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 : 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 : 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 : Which tissues prefer anaerobic glycolysis?
Last Answer : RBCs, exercising muscle, and cancer cells.
Description : Which one of the following statements is incorrect? (A) Insulin increases glucose phosphorylation (B) Insulin increases glycolysis (C) Insulin augments HMP shunt (D) Insulin promotes gluconeogenesis
Last Answer : Answer : D
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.
Description : In anaerobic glycolysis, energy yield from each molecule of glucose is (A) 2 ATP equivalents (B) 8 ATP equivalents (C) 30 ATP equivalents(D) 38 ATP equivalents
Description : The net number of ATP formed per mole of glucose in anaerobic glycolysis is (A) 1 (B) 2 (C) 6 (D) 8
Description : During glycolysis of glucose the energy liberated in the absence of oxygen is known as (A) Oxygenesis (B) Glyconeogenesis (C) Glycogenolysis (D) Anaerobic fermentation
Description : Under anaerobic conditions the glycolysis of one mole of glucose yields ______moles of ATP. (A) One (B) Two (C) Eight (D) Thirty
Last Answer : B
Description : Under anaerobic conditions the glycolysis one mole of glucose yields __ moles of ATP. (A) One (B) Two (C) Eight (D) Thirty
Description : What is the net yield of ATP from one glucose molecule during anaerobic glycolysis?
Last Answer : 2 ATP.
Description : Glucokinase (A) Is widely distributed and occurs in most mammalian tissues (B) Has a high km for glucose and hence is important in the phosphorylation of glucose primarily after ingestion of a carbohydrate rich meal (C) Is widely distributed in Prokaryotes (D) None of these
Description : The phenomenon of inhibition of glycolysis by O2 is termed as (A) Red drop (B) Pasteur effect (C) Michaelis effect (D) Fischer’s effect
Description : In aerobic glycolysis, the net yield from one glucose molecule is how much?
Last Answer : 8 ATP.
Description : The ratio that most closely approximates the number of net molecules of ATP formed per mole of glucose utilized under aerobic conditions to the net number formed under anaerobic conditions is (A) 4:1 (B) 13:1 (C) 18:1 (D) 24:1
Last Answer : Answer : C
Description : All the following statements about brown adipose tissue are true except (A) It is rich in cytochromes (B) It oxidizes glucose and fatty acids (C) Oxidation and phosphorylation are tightly coupled in it (D) Dinitrophenol has no effect on it
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
Description : An uncoupler of oxidative phosphorylation is (A) Carboxin (B) Atractyloside (C) Amobarbital (D) Dinitrocresol
Description : Chemiosmotic theory for oxidative phosphorylation has been proposed by (A) Chance and Williams (B) Pauling and Corey (C) S. Waugh (D) P. Mitchell
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
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
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 : Synthesis of Glucose from amino acids is termed as (A) Glycolysis (B) Gluconeogenesis (C) Glycogenesis (D) Lipogenesis
Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase
Last Answer : A.substrate-level phosphorylation
Description : What is the purpose of lactic acid production under anaerobic conditions?
Last Answer : NADH generated in the 5th step has to be oxidised to NAD+. This can be done by oxygen. But when oxygen is lacking, the 5th step has to be coupled with the 10th step for regeneration of NAD.
Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification
Last Answer : (d) Anaerobic ammonium oxidation and denitrification
Description : Respiration that does NOT require oxygen is called: a) photosynthesis b) oxidation c) anaerobic respiration d) aerobic respiration
Last Answer : ANSWER: C -- ANAEROBIC RESPIRATION
Description : During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP? (a) Glycolysis (b) Krebs’ cycle (c) Conversion of pyruvic acid to acetyl CoA (d) Electron transport chain
Last Answer : (d) Electron transport chain
Description : Enzymes leading to the high energy phosphorylation of substrates during glycolysis include which of the following? (A) Phosphoglycerate kinase (B) Enolase (C) Pyruvate Kinase (D) Glyceraldehyde-3-phosphate dehydrogenase
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
Description : Why is oxygen needed for oxidative phosphorylation? -Biology
Last Answer : answer:
Description : What is oxidative phosphorylation? -Biology
Description : Site of Krebs cycle and oxidative phosphorylation. -Biology
Description : An oxidative phosphorylation is the formation of
Last Answer : An oxidative phosphorylation is the formation of A. `NADPH_(2)` in respiration B. `NADPH_(2)` ... C. ATP in respiration D. ATP in photosynthesis
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 : 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.
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 : What is the end product of glycolysis (fermentation) in chordates (pron: KOR-dates) when there is INSUFFICIENT oxygen? a) lactic acid b) hydrogen c) sugar d) alcohol
Last Answer : ANSWER: A -- LACTIC ACID
Description : The glycerol for fatty acid esterification in adipocytes is (A) For the most part, derived from glucose (B) Obtained primarily from phosphorylation of glycerol by glycerol kinase (C) Formed from gluconeogenesis (D) Formed from glycogenolysis ENZYMES 153
Description : What accumulates in the muscles after continuous strenuous physical exercise as a result of temporary anaerobic respiration that causes muscular fatigue? (1) ATP (2) Lactic acid (3) Ethyl alcohol (4) Carbon dioxide
Last Answer : (2) Lactic acid Explanation: Anaerobic reactions break down glucose into pyruvic acid, which then reacts to produce lactic acid. As muscle metabolism shifts from aerobic to anaerobic ATP production, ... begins to accumulate in muscles and to appear in the bloodstream. This leads to muscle fatigue.