Biomolecules

Class 12 · Chemistry

34 questions13 easy11 medium10 hard

Sample Questions

Q1.In the Haworth projection of sucrose, C-1 of glucose is linked to C-2 of fructose. This is a(n) α,β-1,2-glycosidic bond. This unique linkage makes sucrose:

  • AA reducing sugar with free anomeric carbons
  • BA non-reducing sugar because both anomeric carbons are used in the glycosidic bond
  • CMore reactive than maltose or lactose
  • DInsoluble in water

Q2.Maltose on hydrolysis gives:

  • AGlucose and fructose
  • BTwo molecules of glucose
  • CTwo molecules of galactose
  • DGlucose and galactose

Q3.Which of the following is a monosaccharide?

  • ASucrose
  • BMaltose
  • CGlucose
  • DStarch

Q4.In proteins, which bond can be cleaved by strong acids, bases or enzymatic hydrolysis?

  • ADisulphide bonds (–S–S–)
  • BHydrogen bonds
  • CPeptide bonds (–CO–NH–)
  • DVan der Waals forces

Q5.Essential amino acids are those that:

  • AAre found in essential proteins only
  • BCannot be synthesized in our body and must be obtained through diet
  • CAre essential components of enzymes
  • DHave only one type of functional group

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Amino Acids and ProteinsBase Pairing in DNAClassification of CarbohydratesDenaturation of ProteinsDisaccharides and PolysaccharidesEnzymesGlycosidic LinkageHormonesNucleic Acids - DNA and RNANucleotides and NucleosidesPeptide Bond and Protein StructureReducing and Non-Reducing SugarsStructure of Glucose and FructoseVitamins

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