Description : The general formula of monosaccharides is (A) CnH2nOn (B) C2nH2On (C) CnH2O2n (D) CnH2nO2n
Last Answer : A
Description : The general formula of polysaccharides is (A) (C6H10O5)n (B) (C6H12O5)n (C) (C6H10O6)n (D) (C6H10O6)n
Last Answer : (A) (C6H10O5)n
Description : Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers
Last Answer : (A) Stereoisomers
Description : Non essential amino acids (A) Are not components of tissue proteins (B) May be synthesized in the body from essential amino acids (C) Have no role in the metabolism (D) May be synthesized in the body in diseased states
Last Answer : (B) May be synthesized in the body from essential amino acids
Description : An example of -amino acid not present in proteins but essential in mammalian metabolism is (A) 3-Amino 3-hydroxypropanoic acid (B) 2-Amino 3-hydroxybutanoic acid (C) 2-Amino 4-mercaptobutanoic acid (D) 2-Amino 3-mercaptopropanoic acid
Last Answer : (C) 2-Amino 4-mercaptobutanoic acid
Description : Amino acid with side chain containing basic groups is (A) 2-Amino 5-guanidovaleric acid (B) 2-Pyrrolidine carboxylic acid (C) 2-Amino 3-mercaptopropanoic acid (D) 2-Amino propanoic acid
Last Answer : (A) 2-Amino 5-guanidovaleric acid
Description : The functions of plasma albumin are (A) Osmosis (B) Transport (C) Immunity (D) both (A )and (B)
Last Answer : (A) Osmosis
Description : An aromatic amino acid is (A) Lysine (B) Tyrosine (C) Taurine (D) Arginine
Last Answer : (B) Tyrosine
Description : All the following are sulphur containing amino acids found in proteins except (A) Cysteine (B) Cystine (C) Methionine (D) Threonine
Last Answer : (D) Threonine
Description : An example of sulphur containing amino acid is (A) 2-Amino-3-mercaptopropanoic acid (B) 2-Amino-3-methylbutanoic acid (C) 2-Amino-3-hydroxypropanoic acid (D) Amino acetic acid
Last Answer : (A) 2-Amino-3-mercaptopropanoic acid
Description : Sulphur containing amino acid is (A) Methionine (B) Leucine (C) Valine (D) Asparagine
Last Answer : (A) Methionine
Description : Since the pK values for aspartic acid are 2.0, 3.9 and 10.0, it follows that the isoelectric (pH) is (A) 3.0 (B) 3.9 (C) 5.9 (D) 6.0
Last Answer : (A) 3.0
Description : pH (isoelectric pH) of alanine is (A) 6.02 (B) 6.6 (C) 6.8 (D) 7.2
Last Answer : (A) 6.02
Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive Charge (D) All amino acids contain negatively charged side chains
Last Answer : (A) All amino acids contain both positive and negative charges
Description : At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic
Last Answer : (A) Dipolar ions
Description : The optically inactive amino acid is (A) Glycine (B) Serine (C) Threonine (D) Valine
Last Answer : (A) Glycine
Description : Proteins contain (A) Only L- - amino acids (B) Only D-amino acids (C) DL-Amino acids (D) Both (A) and (B)
Last Answer : (A) Only L- - amino acids
Description : All proteins contain the (A) Same 20 amino acids (B) Different amino acids (C) 300 Amino acids occurring in nature (D) Only a few amino acids
Last Answer : (A) Same 20 amino acids
Description : The sugar found in DNA is (A) Xylose (B) Ribose (C) Deoxyribose (D) Ribulose
Last Answer : (C) Deoxyribose
Description : The major sugar of insect hemolymph is (A) Glycogen (B) Pectin (C) Trehalose (D) Sucrose
Last Answer : (C) Trehalose
Description : A sugar alcohol is (A) Mannitol (B) Trehalose (C) Xylulose (D) Arabinose
Last Answer : (A) Mannitol
Description : Erythromycin contains (A) Dimethyl amino sugar (B) Trimethyl amino sugar (C) Sterol and sugar (D) Glycerol and sugar
Last Answer : (A) Dimethyl amino sugar
Description : The carbohydrate of the blood group substances is (A) Sucrose (B) Fucose (C) Arabinose (D) Maltose
Last Answer : (B) Fucose
Description : In glucose the orientation of the —H and —OH groups around the carbon atom 5 adjacent to the terminal primary alcohol carbon determines (A) D or L series (B) Dextro or levorotatory (C) and anomers (D) Epimers
Last Answer : (A) D or L series
Description : The most important epimer of glucose is (A) Galactose (B) Fructose (C) Arabinose (D) Xylose
Last Answer : (A) Galactose
Description : Isomers differing as a result of variations in configuration of the —OH and —H on carbon atoms 2, 3 and 4 of glucose are known as (A) Epimers (B) Anomers (C) Optical isomers (D) Steroisomers
Last Answer : (A) Epimers
Description : Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers
Description : The number of isomers of glucose is (A) 2 (B) 4 (C) 8 (D) 16
Last Answer : (D) 16
Description : Polysaccharides are (A) Polymers (B) Acids (C) Proteins (D) Oils
Last Answer : (A) Polymers
Description : The pentose sugar present mainly in the heart muscle is (A) Lyxose (B) Ribose (C) Arabinose (D) Xylose
Last Answer : (A) Lyxose
Description : A pentose sugar is (A) Dihydroxyacetone (B) Ribulose (C) Erythrose (D) Glucose
Last Answer : (B) Ribulose
Description : A triose sugar is (A) Glycerose (B) Ribose (C) Erythrose (D) Fructose
Last Answer : (A) Glycerose
Description : The aldose sugar is (A) Glycerose (B) Ribulose (C) Erythrulose (D) Dihydoxyacetone
Description : The distinguishing test between monosaccharides and dissaccharide is (A) Bial’s test (B) Seliwanoff’s test (C) Barfoed’s test (D) Hydrolysis test
Last Answer : C
Description : Whcih of the following features are common to monosaccharides? (A) Contain asymmetric centres (B) Are of 2 types – aldoses and ketoses (C) Tend to exist as ring structures in solution (D) Include glucose, galactose and raffinose
Description : The distinguishing test between monosaccharides and dissaccharides is (A) Bial’s test (B) Selwanoff’s test (C) Barfoed’s test (D) Hydrolysis test
Description : In the diet of a diabetic patient, the recommended carbohydrate intake should preferably be in the form of CARBOHYDRATES AND CARBOHYDRATE METABOLISM 11 (A) Monosaccharides (B) Dissaccharides (C) Polysaccharides (D) All of these
Description : Sucrose consists of what monosaccharides?
Last Answer : Glucose + fructose.
Description : What are the component monosaccharides of lactose?
Last Answer : Galactose and glucose.
Description : Name some important monosaccharides.
Last Answer : Glucose, fructose, galactose, mannose.
Description : How are monosaccharides further classified?
Last Answer : Sugars having aldehyde group are called aldoses and sugars with keto group are ketoses.
Description : What are the commonest monosaccharides? -Biology
Last Answer : answer:
Description : Monosaccharides that are used as energy source
Last Answer : Ans. Glucose and fructose
Description : Monosaccharides possess reducing property due to the presence of
Last Answer : Ans. Free aldehyde or keto group
Description : An example of a natural polymer formed by many units of monosaccharides is
Last Answer : starch.
Description : Which of the following biomolecules does have a phosphodiester bond? (a) Amino acids in a polypeptide (b) Nucleic acids in a nucleotide (c) Fatty acids in a diglyceride (d) Monosaccharides in a polysaccharide
Last Answer : b) Nucleic acids in a nucleotide
Description : All of the following monosaccharides give the same osazone except (a) Galactose (b) Glucose (c) Fructose (d) Mannose
Last Answer : Galactose
Description : . Monosaccharides are classified according to : (a) the number of carbon atoms in the molecule. (b) whether they contain an aldehyde or a ketone group (c) their configurational relationship to glyceraldehyde. (d) all of the above
Last Answer : all of the above
Description : Which of the following terms best fits the statement: "Process by which polysaccharides are degraded to monosaccharides." w) hydrolysis x) glycolosis y) lipogenesis z) none of the above
Last Answer : ANSWER: W -- HYDROLYSIS
Description : The bacteria which cause dental cavities in humans break down sugars, releasing what chemical, that causes tooth destruction? a) acids b) bases c) enzymes d) monosaccharides
Last Answer : ANSWER: A -- acids