Description : Yeast play an important role in the alcohol industry, converting pyruvic acid into carbondioxide and ethyl alcohol by the process of A- glycolysis B- respiration C- fermentation D- Krebs cycle
Last Answer : fermentation
Description : Write the enzyme & its coenzymes which catalyse the following reaction:- Pyruvic acid `+NAD^(+)to"ACetylCoA"+CO_2+NADH`
Last Answer : Write the enzyme & its coenzymes which catalyse the following reaction:- Pyruvic acid `+NAD^(+)to"ACetylCoA"+CO_2+NADH`
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 : Which one of the following pairs is mismatched? a. Alcohol-fermentation b. Pyruvate-glycolysis c. Carbon dioxide-glycolysis d. NADH-citric acid cycle
Last Answer : c. Carbon dioxide-glycolysis
Description : End product of aerobic glycolysis is (A) Acetyl CoA (B) Lactate (C) Pyruvate (D) CO2 and H2O
Last Answer : Answer : C
Description : In fermentation, the conversion of pyruvate into a final end product is critical for the production of a. CO2. b. glucose c. NAD. d. 02.
Last Answer : a. CO2.
Description : Which one of the following is NOT produced during glycolysis? a. ATP b. NADH c. Pyruvate d. Glucose
Last Answer : c. Pyruvate
Last Answer : d. Glucose
Description : How many ATPs are produced in the conversion of phosphoenol pyruvate to citrate? (A) 1 (B) 2 (C) 4 (D) 6
Last Answer : C
Description : The net gain of ATP in glycolysis is (A) 12 ATPs (B) 24 ATPs (C)1 ATP (D) 2 ATPs
Last Answer : (D) 2 ATPs
Description : End product of glycolysis is (a) acetyl CoA (b) pyruvic acid (c) glucose 1-phosphate (d) fructose 1-phosphate.
Last Answer : (b) pyruvic acid
Description : In photosynthesis is chlorophyll considered a reactant a product neither how does the role of chlorophyll compare with the roles of co2 and h20?
Last Answer : Need answer
Description : This early atmosphere was rich in CO2 and H2O. How did oxygen enter our atmosphere? (a) Meteorites. (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen. (c) Volcanic emissions. (d) Methanogenic bacteria.
Last Answer : (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen.
Description : End product of citric acid cycle/Krebs’ cycle is (a) citric acid (b) lactic acid (c) pyruvic acid (d) CO2 + H2O
Last Answer : (d) CO2 + H2O.
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 : At the end of glycolysis, six carbon compound ultimately changes into (a) ethyl alcohol (b) acetyl Co-A (c) pyruvic acid (d) ATP
Last Answer : (c) pyruvic acid
Description : Which is the enzyme that degrade tryptophan to indol , pyruvic acid and ammonia A Tryptoamylase B Indolase C Tryptophanase D Tryptolyase
Last Answer : C Tryptophanase
Description : The main product of glycolysis under aerobic conditions is a. Pyruvate b. Lactate c. None of these d. Both a and b Ans: A 2. The protein moiety of an enzyme is known as a. Holo enzyme b. Apo enzyme c. Co enzyme d. Enzyme
Last Answer : Ans: B
Description : As the end product of glycolysis, pyruvate and NADH are formed. During aerobic conditions, this NADH is reconverted to NAD+ by what mechanism?
Last Answer : Oxygen.
Description : As the end product of glycolysis, pyruvate and NADH are formed. During anaerobiasis, this NADH is reconverted to NAD+ by what mechanism?
Last Answer : Lactate dehydrogenase reaction.
Description : . End product of glycolysis is (A) ATP (B) Pyruvate (C) PEP (D) Glucose
Last Answer : (B) Pyruvate
Description : Where is the most ATP produced in cellular respiration? a. Fermentation b. Electron Transport Chain c. Glycolysis d. Citric Acid Cycle
Last Answer : b. Electron Transport Chain
Description : Multiple Choice [1 point each] (1) The gases that contribute to the greenhouse effect on Earth are, in order of greatest to smallest in importance, (a) CO2, H20, CH4 (b) H20, CO2, CH4 (c) CH4, CO2, H20 (d) H20, CH4, CO2
Last Answer : (b) H20, CO2, CH4
Description : The following is an enzyme required for glycolysis: (A) Pyruvate kinase (B) Pyruvate carboxylase (C) Glucose-6-phosphatose (D) Glycerokinase
Last Answer : A
Description : The following is an enzyme required for glycolysis: (A) Pyruvate kinase (B) Pyruvate carboxylase (C) Glucose-6-phosphatase (D) Glycerokinase
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 : O2 released in the process of photosynthesis comes from (a) CO2 (b) Water (c) Sugar (d) Pyruvic acid
Last Answer : Ans:(b)
Description : In sugarcane plant 14CO2 is fixed to malic acid, in which the enzyme that fixes CO2 is (a) ribulose biphosphate carboxylase (b) phosphoenol pyruvic acid carboxylase (c) ribulose phosphate kinase (d) fructose phosphatase.
Last Answer : (b) phosphoenol pyruvic acid carboxylase
Description : During an early step of respiration, glucose is converted into two identical molecules of: a) CO2 b) ATP c) pyruvic acid(pron: pie-ROO-vik) d) chlorophyll
Last Answer : ANSWER: C -- PYRUVIC ACID
Description : If all the enzymes, intermediates and cofactors of the citric acid cycle as well as an excess of the starting substrate acetylCoA are present and functional in an organelle free solution at the appropriate ... oxygen (B) Half life of enzyme (C) Turnover of intermediates (D) Reduction of cofactors
Last Answer : Answer : D
Description : How many ATPs are generated per one rotation of the citric acid cycle?
Last Answer : 12 ATP.
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 : The glycolysis is regulated by (A) Hexokinase (B) Phosphofructokinase (C) Pyruvate kinase (D) All of these
Last Answer : D
Description : Connecting link between glycolysis and Krebs’ cycle before pyruvate entering Krebs’ cycle is changed to (a) oxaloacetate (b) PEP (c) pyruvate (d) acetyl CoA.
Last Answer : (d) acetyl CoA.
Description : The conversion of pyruvate to acetyl CoA and CO2 (A) Is reversible (B) Involves the participation of lipoic acid (C) Depends on the coenzyme biotin (D) Occurs in the cytosol
Last Answer : B
Description : In C4 plants, CO2 combines with (a) phosphoenol pyruvate (b) phosphoglyceraldehyde (c) phosphoglyceric acid (d) ribulose diphosphate.
Last Answer : (a) phosphoenol pyruvate
Description : Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 - pyruvate Cell wall C acid ... b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction
Last Answer : (c) Fixation Decarboxylation Regeneration
Description : In glycolysis, ATP is created by A.photophosphorylation B.the chemiosmotic mechanism C.substrate level phosphorylation D.the pentose phosphate pathway
Last Answer : C.substrate level phosphorylation
Description : All the following are produced during the citric acid cycle except: a. CO2. b. 02. c. ATP. d. NADH.
Description : In the synthesis of 1 molecule of urea in the Kreb’s Hanseleit cycle, the number of ATPs required is (A) 1 (B) 2 (C) 3 (D) 4
Description : The first product of photosynthesis in C 3 plant is— (A) Pyruvic acid (B) Phospho-glyceric acid (C) Oxalo-acetic acid (D) Succinic acid
Last Answer : (B) Phospho-glyceric acid
Description : Compared to the resting state, vigorously contracting muscle shows (A) An increased conversion of pyruvate to lactate (B) Decreased oxidation of pyruvate of CO2 and water (C) A decreased NADH/NAD+ ratio (D) Decreased concentration of AMP CARBOHYDRATES AND CARBOHYDRATE METABOLISM 21
Description : In presence of the following cofactor, pyruvate carboxylase converts pyruvate to oxaloacetate: (A) ATP, Protein and CO2 (B) CO2 and ATP (C) CO2 (D) Protein
Description : Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in (a) C4 plants (b) C2 plants (c) C3 and C4 plants (d) C3 plants.
Last Answer : (a) C4 plants
Description : Out of 36 ATP molecules produced per glucose molecule during respiration (a) 2 are produced outside glycolysis and 34 during respiratory chain (b) 2 are produced outside mitochondria and 34 inside ... (c) 2 during glycolysis and 34 during Krebs' cycle (d) all are formed inside mitochondria
Last Answer : (b) 2 are produced outside mitochondria and 34 inside mitochondria
Description : The electron transport chain is directly involved with a. ATP Synthesis b. CO2 Production. c. H + Pumping d. Generating Oxygen Gas.
Last Answer : a. ATP Synthesis
Description : In the reaction, C6H12O6 + 6O2 6CO2 + 6H2O + energy, which component is → being reduced? A- O2 B- CO2 C- .H2O D- Energy
Last Answer : O2
Description : Achlorophyllous means A-.leading in chlorophyll B- lacking chlorophyll C- unable to use CO2 D- none of these
Last Answer : lacking chlorophyll
Description : Which of the metabolites is common to respiration- mediated breakdown of fats, carbohydrates and proteins? (a) Pyruvic acid (b) Acetyl CoA (c) Glucose - 6 - phosphate (d) Fructose 1, 6 - bisphosphate
Last Answer : (b) Acetyl CoA