Phspholipids are esters of glycerol with

(a) one carboxylic acid residue and two phosphate groups

(b) three phosphate groups

(c) three carboxylic acid residues

(d) two carboxylic acid residues and one phosphate groups

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Which one of the following gives positive Fehling's solution test ?

(a) Sucrose

(b) Glucose

(c) Fats

(d) Protein

Concept Videos :-

#1 | Carbohydrates
#2 | Chemical Reactions of Glucose
#3 | Configuration of Monosaccharides
#4 | Anomers of Glucose

Concept Questions :-

Carbohydrates - Classification, D-L configuration
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Which of the following is the sweetest sugar?

(a) Sucrose

(b) Glucose

(c) Fructose

(d) Maltose

Concept Videos :-

#1 | Carbohydrates
#2 | Chemical Reactions of Glucose
#3 | Configuration of Monosaccharides
#4 | Anomers of Glucose

Concept Questions :-

Carbohydrates - Classification, D-L configuration
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Which one of the following sets of monosaccharides forms sucrose ?

(a) a-D-galactopyranose and a-D-glucopyranose

(b) a-D-glucopyranose and b-D-fructofuranose

(c) b-D-glucopyranose and a-D-fructofuranose

(d) b-D-glucopyranose and b-D-fructofuranose

Concept Videos :-

#5 | Structure of Fructose & Sucrose
#6 | Disaccharides & Polysaccharides

Concept Questions :-

Polysaccharides (starch, cellulose, glycogen) importance
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a-D-(+)-glucose and b-D-(+)-glucose are

(a) anomers

(b) epimers

(c) enantiomers

(d) geometrical isomers

Concept Videos :-

#1 | Carbohydrates
#2 | Chemical Reactions of Glucose
#3 | Configuration of Monosaccharides
#4 | Anomers of Glucose

Concept Questions :-

Carbohydrates - Classification, D-L configuration
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The couplings between base units of DNA is through

(a) hydrogen bonding

(b) electrostatic bonding

(c) covalent bonding

(d) van der waal's forces

Concept Videos :-

#10 | Nucleic Acids

Concept Questions :-

Nucleic Acids: DNA and RNA
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The segment of DNA which acts as the instrumental manual for the synthesis of the protein is 

(a) nucleotide

(b) ribose

(c) gene

(d) nucleoside

Concept Videos :-

#10 | Nucleic Acids

Concept Questions :-

Nucleic Acids: DNA and RNA
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Which of the following structures represents the peptide chain ?

Concept Videos :-

#7 | Amino Acids
#8 | Classification of Proteins

Concept Questions :-

Proteins - α - amino acids, peptide bond, proteins, structure of proteins
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Which of the following does not exihibit the phenomena of mutarotation?

(a) (+) Sucrose

(b) (+) Lactose

(c) (+) Maltose

(d) (-) Fructose

Concept Videos :-

#5 | Structure of Fructose & Sucrose
#6 | Disaccharides & Polysaccharides

Concept Questions :-

Polysaccharides (starch, cellulose, glycogen) importance
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RNA and DNA are chiral molecules, their chirality is due to

(a) L-sugar component

(b) chiral bases

(c) chiral phosphate ester units

(d) D-sugar-component

Concept Videos :-

#10 | Nucleic Acids

Concept Questions :-

Nucleic Acids: DNA and RNA
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