Description : Binding of catecholamines to α2− adrenergic receptors (A) Increases the intracellular concentration of cAMP (B) Increases the intracellular concentration of cGMP (C) Decreases the intracellular concentration of cAMP (D) Decreases the intracellular concentration of cGMP
Last Answer : Answer : C
Description : The mean intracellular concentration of ATP in mammalian cell is about (A) 1 mM (B) 2 mM (C) 0.1 mM (D) 0.2 mM
Last Answer : Answer : A
Description : All the following statements about charging of tRNA are correct except (A) It is catalysed by amino acyl tRNA synthetase (B) ATP is converted into ADP and Pi in this reaction (C) The enzyme recognizes the tRNA and the amino acid (D) There is a separate enzyme for each tRNA
Last Answer : Answer : B
Description : All of the following statements about thioredoxin reductase are true except: (A) It requires NADH as a coenzyme (B) Its substrates are ADP, GDP, CDP and UDP (C) It is activated by ATP (D) It is inhibited by dADP
Description : Cyclic AMP can be formed from (A) AMP (B) ADP (C) ATP (D) All of these
Description : The enzyme aspartate transcarbamoylase of pyrimidine biosynthesis is inhibited by (A) ATP (B) ADP (C) AMP (D) CTP
Last Answer : Answer : D
Description : UDP and UTP are formed by phosphorylation from (A) AMP (B) ADP (C) ATP (D) GTP
Description : The cofactors required for synthesis of adenylosuccinate are (A) ATP, Mg++ (B) ADP (C) GTP, Mg++ (D) GDP
Description : In purine biosynthesis ring closure in the molecule formyl glycinamide ribosyl-5- phosphate requires the cofactors: (A) ADP (B) NAD (C) FAD (D) ATP and Mg++
Description : G-proteins have a nucleotide binding site for (A) ADP/ATP (B) GDP/GTP (C) CDP/CTP (D) UDP/UTP
Description : Standard free energy (∆G°) of hydrolysis of ATP to ADP + Pi is (A) –49.3 KJ/mol (B) –4.93 KJ/mol (C) –30.5 KJ/mol (D) –20.9 KJ/mol
Description : Hexokinase (Glucose + ATP → Glucose-6– P + ADP) belongs to the category: (A) Transferases (B) Lysases (C) Oxidoreductases (D) Isomerases
Description : Coenzyme for phosphoenolpyruvate carboxykinase is (A) ATP (B) ADP (C) GTP (D) GDP
Description : The enzyme phosphoenolpyruvate carboxykinase catalyses the conversion of oxaloacetate to phosphoenolpyruvate requires (A) ATP (B) ADP (C) AMP (D) GTP
Description : The reaction catalysed by α-ketoglutarate dehydrogenase in the citric acid cycle requires (A) NAD (B) NADP (C) ADP (D) ATP
Description : Phosphofructokinase key enzyme in glycolysis is inhibited by (A) Citrate and ATP (B) AMP (C) ADP (D) TMP
Description : Given that the standard free energy change (∆G°) for the hydrolysis of ATP is -7.3 K cal/mol and that for the hydrolysis of Glucose 6-phosphate is -3.3 Kcal/mol, the ∆G° for the phosphorylation of glucose is Glucose + ATP → ... -10.6 Kcal/mol (B) -7.3 Kcal/mol (C) -4.0 Kcal/mol (D) +4.0 Kcal/mol
Description : The enzyme acyl-CoA synthase catalyses the conversion of a fatty acid of an active fatty acid in the presence of (A) AMP (B) ADP (C) ATP (D) GTP
Description : Synthesis of glutamine is accompanied by the hydrolysis of (A) ATP (B) ADP (C) TPP (D) Creatin phosphate
Description : Allsoteric activator of glutamate dehydrogenase is (A) ATP (B) GTP (C) ADP and GDP (D) AMP and GMP
Description : Allosteric inhibitor of glutamate dehydrogenase is (A) ATP (B) ADP (C) AMP (D) GMP
Description : Which one of the following would be expected in pyruvate kinase deficiency? (A) Increased levels of lactate in the R.B.C (B) Hemolytic anemia (C) Decreased ratio of ADP to ATP in R.B.C (D) Increased phosphorylation of Glucose to Glucose-6-phosphate
Last Answer : B
Description : Sufficient energy required to produce 3 ATP from 3 ADP and 3 pi is (A) –21,900 cal (B) 29,900 cal (C) 31,900 cal (D) 39,900 cal
Last Answer : A
Description : Consider the following statements associated with the germination of an angiospermous seed: (1) As the seed gets hydrated and germinates, enzymatic activity is increased (2) The respiration ... The increase in the respiratory rate continues till senescence (4) Rate of enzymatic activity decreases
Last Answer : Ans. ((b))
Description : Concentration of the following is higher in intracellular fluid than in extracellular fluid: (A) Sodium (B) Potassium (C) Chloride (D) Bicarbonate
Description : During deficiency of thiamine the concentration of the following compound rises in blood and intracellular fluid: (A) Glycogen (B) Sugar (C) Amino acids (D) Pyruvic acid
Last Answer : Adenosine Diphosphate, Adenosine Triphosphate
Last Answer : : Photophosphorylation or photosynthesis. At this time 6300 calories are bound in ATP .
Description : $ Process of conversion of ADP into ATP is called phosporylation. ! Glycolysis is also called EMP.
Last Answer : $ Process of conversion of ADP into ATP is called phosporylation. ! Glycolysis is also called EMP. A. If ... is wrong D. If both As and R are wrong.
Description : Synthesis of ATP and ADP and inorganic phoshate in presence of light is known as
Last Answer : Synthesis of ATP and ADP and inorganic phoshate in presence of light is known as
Description : What molecule as a phosphate group to ADP to make ATP?
Last Answer : Need answer
Description : Why does the conversion of ATP and ADP help keep us warm?
Last Answer : Feel Free to Answer
Description : What happens to the ADP molecules that is produced when cells use the energy in ATP?
Last Answer : Most are taken up by mitochondria and reprocessed into ATP.
Description : What and happens to ADP after ATP hydrolysis?
Description : What happens when ATP to changed to ADP?
Last Answer : it loses an inorganic phosphate from a chemical reaction.
Description : What is the equation that shows how ADP i changed into ATP?
Description : When you are rested, do you have more ATP or ADP ?
Last Answer : 2 Chainz
Description : What's the difference in the Flashlight beams in ADP and ATP?
Last Answer : ADP is like a partially charged battery that will produce a dim light & ATP is like a fully charged battery that produces a bright light
Description : Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP
Last Answer : Ans. ((d))
Description : The pumping of Na+ depends on a. ADP b. ATP c. GDP d. All
Last Answer : ATP
Description : When one glucose molecule is completely oxidised, it changes (a) 36 ADP molecules into 36 ATP molecules (b) 38 ADP molecules into 38 ATP molecules (c) 30 ADP molecules into 30 ATP molecules (d) 32 ADP molecules into 32 ATP molecules.
Last Answer : (b) 38 ADP molecules into 38 ATP molecules
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 : 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 : 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 : In photosynthesis energy from light reaction to dark reaction is transferred in the form of (a) ADP (b) ATP (c) RuDP (d) chlorophyll.
Last Answer : (b) ATP
Description : Which one of the following concerns photophosphorylation? (a) ADP + AMP ATP Light energy (b) ADP + Inorganic PO4 ATP Light energy (c) ADP + Inorganic PO4 ATP (d) AMP + Inorganic PO4 ATP
Last Answer : ) AMP + Inorganic PO4 ATP
Description : What has the most energy in its chemical bonds? a) AMP b) ADP c) ATP d) All are equal
Last Answer : ANSWER: C -- ATP
Description : Which of the following statement(s) is/are true concerning ischemia reperfusion injury? a. During ischemia, ATP degradation results in increased plasma and intracellular levels of ... immunization with antibodies to neutrophil adhesive complex lessen the ischemic/reperfusion microvascular injury
Last Answer : Answer: a, b, c, d During the ischemia and hypoperfusion phase, degradation of ATP stores essential to maintain cell integrity and significant loss of diffusible ... either the neutrophil adhesive complex or the endothelial selectins dramatically lessens ischemia/reperfusion microvascular injury