Description : A molecule of ATP contains a. Ribose But No Adenine. b. Phosphate But No Ribose. c. Adenine But No Deoxyribose. d. Deoxyribose But No Thymine.
Last Answer : b. Phosphate But No Ribose.
Description : Which one of the following statements is not true of RNA? a. RNA contains the monosaccharide ribose. b. RNA is primarily a single-stranded molecule. c. RNA has a sugar-phosphate backbone. d. RNA contains five different nucleotides.
Last Answer : d. RNA contains five different nucleotides.
Description : In RNA, apart from ribose and phosphate, all following are present except (A) Adenine (B) Guanine (C) Thymine (D) Cytosine
Last Answer : Answer : C
Description : A key substance in the committed step of pyrimidines biosynthesis is (A) Ribose-5-phosphate (B) Carbamoyl phosphate (C) ATP (D) Glutamine
Last Answer : Answer : B
Description : When a phosphate group is removed from an ATP molecule?
Last Answer : Need answer
Description : What molecule as a phosphate group to ADP to make ATP?
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 : RNA does not contain (A) adenine (B) OH methyl cytosine (C) d-ribose (D) Uracil
Description : Acid hydrolysis of ribonucleic acid would yield the following major products: (A) d- deoxyribose, cytosine, adenine (B) d-ribose, thymine, Guanine (C) d-ribose, cytosine, uracil, thymine (D) d-ribose, uracil, adenine, guanine, cytosine
Last Answer : Answer : D
Description : RNA does not contain (A) Uracil (B) Adenine (C) Thymine (D) Ribose
Description : Polynucleotide chain of DNA contains (a) a nitrogenous base, deoxyribose sugar and phosphate group (b) a nitrogenous base, ribose sugar and phosphate group (c) deoxyribose sugar ribose sugar and phosphate group (d) a nitrogenous base and phosphate group only
Last Answer : Ans:(a)
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 : How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to CO2 and H2O yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal? (a) 1 (b) 2 (c) 30 (d) 57
Last Answer : d) 57
Description : Synthesis of sphingosine requires the cofactor (A) NAD (B) NADP (C) NADPH+ (D) ATP
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
Last Answer : A
Description : A common substrate of HGPRTase, APRTase and PRPP glutamyl amidotransferase is (A) Ribose 5 phosphate (B) Phosphoribosyl pyrophosphate (C) Hypoxanthine (D) Adenosine
Description : 6-Mercapto purine inhibits the conversion of (A) IMP→ XMP (B) Ribose 5 phosphate → PRPP (C) PRPP → 5-phospho →β -D-ribosylamine (D) Glycinamide ribosyl 5-phosphate → formylglycinamide ribosyl-5-phosphate
Last Answer : Answer : A
Description : The key substance in the synthesis of purine, phosphoribosyl pyrophosphate is formed by (A) α-D-ribose 5-phosphate (B) 5-phospho β-D-ribosylamine (C) D-ribose (D) Deoxyribose
Description : The first pentose formed in HMP shunt is (A) Ribose-5-phosphate (B) Ribulose-5-phosphate (C) Xylose-5-phosphate (D)Xylulose-5-phosphate
Description : Glucose-6-phosphate dehydrogenase is induced by (A) 6-Phosphogluconolactone (B) Glucose-6-phosphate (C) Ribose-5-phosphate (D) Insulin
Description : Pentosuria is a rare hereditary disease is characterized by increased urinary excretion of (A) L-xylulose (B) Xylitol (C) Xylulose 5-phosphate (D) Ribose 5-phosphate
Description : Xylulose-5-phosphate serves as a donar of active glycolaldehyde, the acceptor is (A) Erythrose 4-phosphate (B) Ribose 5-phosphate (C) Glyceraldehyde 3-phosphate (D) Sedoheptulose 7-phosphate
Description : In pentose phosphate pathway, D-ribulose5-phosphate is converted to D-ribose-5- phosphate by the enzyme: (A) Fumarase (B) Ketoisomerase (C) G-6-PD (D) Epimerase
Description : The 5- carbon compounds produced during dark reaction of photosynthesis is (A) Ribose phosphate (B) Xylulose phosphate (C) Ribulose bis phosphate (D) Seda heptulose phosphate
Last Answer : (C) Ribulose bis phosphate
Description : Which one of the following is a non - reducing carbohydrate? (a) Maltose (b) Sucrose (c) Lactose (d) Ribose 5-phosphate
Last Answer : (b) Sucrose
Description : Cofactor (Prosthetic group) is a part of holoenzyme, it is (A) Inorganic part loosely attached (B) Accessory non-protein substance attached firmly (C) Organic part attached loosely (D) None of these
Description : $ ATP is a type of coenzyme. ! Adenine is a type of pyrimidine.
Last Answer : $ ATP is a type of coenzyme. ! Adenine is a type of pyrimidine. A. If both As and R are correct and R ... , R is wrong D. If both As and R are wrong.
Description : The standard free energy of hydrolysis of terminal phosphate group of ATP is (A) –7,300 cal/mol (B) –8,300 cal/mol (C) 10,000 cal/mol (D) +7,300 cal/mol
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 : RNA does not contain (A) Uracil (B) Adenine (C) Hydroxy methyl cytosine (D) Phosphate
Description : IN a DNA molecule, the guanosine content is 40%, the adenine content will be (A) 10% (B) 20% (C) 30% (D) 40%
Description : In DNA molecule (A) Guanine content does not equal cytosine content (B) Adenine content does not equal thymine content (C) Adenine content equals uracil content (D) Guanine content equals cytosine content
Description : The T ψ C arm in the tRNA molecule possesses the sequence (A) T, pseudouridine and C (B) T, uridine and C (C) T, dihydrouridine and C (D) T, adenine and C
Description : In RNA molecule (A) Guanine content equals cytosine (B) Adenine content equals uracil (C) Adenine content equals guanine (D) Guanine content does not necessarily equal its cytosine content.
Description : In RNA molecule guanine content does not necessarily equal its cytosine content nor does its adenine content necessarily equal its uracil content since it is a (A) Single strand molecule ( ... stranded molecule (C) Double stranded helical molecule (D) Polymer of purine and pyrimidine ribonucleotides
Description : n the DNA molecule, (a) the proportion of adenine in relation to thymine varies with the organism (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → ... is not always equal (d) there are two strands which run parallel in the 5′ → 3′ direction.
Last Answer : (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → 5′
Description : Adenine binds to which base in an RNA molecule?
Last Answer : ANSWER: URACIL
Description : Which one of the following biomolecules is correctly characterized? (a) Lecithin-a phosphorylated glyceride found in cell membrane. (b) Palmitic acid - an unsaturated fatty acid with 18 carbon atoms. ... Alanine amino acid - contains an amino group and an acidic group anywhere in the molecule.
Last Answer : (a) Lecithin-a phosphorylated glyceride found in cell membrane
Description : A phosphoglyceride is always made up of (a) a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached (b) a saturated or unsaturated ... unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached.
Last Answer : (a) a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached
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 : Where is ATP produced in prokaryotic cells? a. In The Mitochondria b. In The Chloroplast c. On The Cell Membrane d. On The Ribosomes
Last Answer : b. In The Chloroplast
Description : A key energy compound in bacterial photosynthesis by cyanobacteria is ______ and a major end-product is ______. a. GTP; protein b. citrate; lactose c. glucose; chlorophyll d. ATP; glucose
Last Answer : c. glucose; chlorophyll
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 : All the following are produced during the citric acid cycle except: a. CO2. b. 02. c. ATP. d. NADH.
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
Description : Which of the following(s) is/are the products of the light reactions of photosynthesis? A.ATP only B.NADPH only C.ATP and O2 only D.ATP, NADPH, and O2
Last Answer : D.ATP, NADPH, and O2
Description : For each pair of electrons passing from NADH located inside the mitochondria to oxygen, how many ATP molecules can be generated? A.1 B.2 C.3 D.4
Last Answer : C.3
Description : For each pair of electrons passing from NADH located inside the mitochondria to oxygen, how many ATP molecules can be generated? A- 1 B- 2 C- 3 D- 4
Last Answer : 3
Last Answer : d. Glucose