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
Last Answer : Answer : A
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
Last Answer : Answer : B
Description : Human heart muscle contains (A) D-Arabinose (B) D-Ribose (C) D-Xylose (D) L-Xylose
Last Answer : C
Description : An L-isomer of monosaccharide formed in human body is (A) L-fructose (B) L-Erythrose (C) L-Xylose (D) L-Xylulose
Last Answer : D
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 : The sugar found in DNA is (A) Xylose (B) Ribose (C) Deoxyribose (D) Ribulose
Description : The pentose sugar present mainly in the heart muscle is (A) Lyxose (B) Ribose (C) Arabinose (D) Xylose
Last Answer : A
Last Answer : (C) Deoxyribose
Last Answer : (A) Lyxose
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 : The enzyme involved in essential pentosuria is (A) Reductase (B) Hydroxylase (C) Isomerase (D) Racemase
Description : What is essential pentosuria?
Last Answer : Excretion of pentose (L-xylulose) in urine due to the deficiency of xylitol dehydrogenase.
Description : For conjugation with many enogenous and exogenous substances before elimination in urine, the uronic acid pathway provides (A) Active glucuronate (B) Gulonate (C) Xylulose (D) Xylitol
Description : The sugar absorbed by fac i l itated diffusion and requiring Na independent transporter is (A) Glucose (B) Fructose (C) Galactose (D) Ribose
Description : There can be intolerance with respect to the following sugar: (A) Glucose (B) Lactose (C) Maltose (D) Xylose
Description : All the following are ketones except (A) Xylulose (B) Ribolose (C) Erythrose (D) Fructose
Last Answer : Answer : C
Description : The intermediate n hexose monophosphate shunt is (A) D-Ribulose (B) D-Arabinose (C) D-xylose (D) D-Lyxose
Description : The four membered aldose sugar phosphate formed in HMP shunt pathway is (A) Xylulose P (B) Erythrulose P (C) Erythrose P (D) Ribulose P
Description : The intermediate in hexose monophosphate shunt is (A) D-Ribolose (B) D-Arobinose (C) D-xylose (D) D-lyxose
Description : A sugar alcohol is (A) Mannitol (B) Trehalose (C) Xylulose (D) Arabinose
Description : The most important epimer of glucose is (A) Galactose (B) Fructose (C) Arabinose (D) Xylose
Last Answer : (A) Mannitol
Last Answer : (A) Galactose
Description : $ Proteins, polysaccharides and nucleic acid are the macromolecules of a cell. ! DNA contains Ribose Sugar.
Last Answer : $ Proteins, polysaccharides and nucleic acid are the macromolecules of a cell. ! DNA contains Ribose Sugar. A ... wrong D. If both As and R are wrong.
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 : 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 : 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 : A 60-year-old man was diagnosed last year with adenocarcinoma of the lung, and a 4 cm mass lesion was treated with a right lower lobectomy. He now has an ... 2) Membranous glomerulonephritis 3) Minimal change glomerulonephritis 4) Nodular glomerulosclerosis 5) Rapidly progressive glomerulonephritis
Last Answer : Answers-2 Most cases of membranous GN are idiopathic, but in some patients there is a history of an infection or a malignancy (usually lung) with antigenemia.
Description : The sugar present in DNA is – (1) Pentose (2) Xylulose (3) Hexose (4) Heptulose
Last Answer : ( 1) Pentose Explanation: The sugar present in DNA is 2- deoxyribose, which is a pentose
Description : The sugar present in DNA is (1) Pentose (2) Xylulose (3) Hexose (4) Heptulose
Last Answer : Pentose
Description : A key substance in the committed step of pyrimidines biosynthesis is (A) Ribose-5-phosphate (B) Carbamoyl phosphate (C) ATP (D) Glutamine
Description : A common substrate of HGPRTase, APRTase and PRPP glutamyl amidotransferase is (A) Ribose 5 phosphate (B) Phosphoribosyl pyrophosphate (C) Hypoxanthine (D) Adenosine
Description : In RNA, apart from ribose and phosphate, all following are present except (A) Adenine (B) Guanine (C) Thymine (D) Cytosine
Description : Nucleic acids can be detected by means of their absorption maxima near 260 nm. Their absorption in this range is due to (A) Proteins (B) Purines and pyrimidines (C) Ribose (D) Deoxyribose
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 : 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
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 sugar moiety present in DNA is (A) Deoxyribose (B) Ribose (C) Lyxose (D) Ribulose
Description : The sugar moiety present in RNA is (A) Ribulose (B) Arabinose (C) Ribose (D) Deoxyribose
Description : RNA does not contain (A) Uracil (B) Adenine (C) Thymine (D) Ribose
Description : Uracil and ribose form (A) Uridine (B) Cytidine (C) Guanosine (D) Adenosine
Description : Glucose-6-phosphate dehydrogenase is induced by (A) 6-Phosphogluconolactone (B) Glucose-6-phosphate (C) Ribose-5-phosphate (D) Insulin
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 substrate for amylase is (A) Cane sugar (B) Starch (C) Lactose (D) Ribose
Description : Barfoed’s solution is not reduced by (A) Glucose (B) Mannose (C) Sucrose (D) Ribose
Description : Epimers of glucose is (A) Fructose (B) Galactose (C) Ribose (D) Deoxyribose
Last Answer : B
Description : The epimers of glucose is (A) Fructose (B) Galactose (C) Ribose (D) Deoxyribose
Description : The smallest monosaccharide having furanose ring structure is (A) Erythrose (B) Ribose (C) Glucose (D) Fructose
Description : A carbohydrate found in DNA is (A) Ribose (B) Deoxyribose (C) Ribulose (D) All of these