Biomolecules — Important Questions
Maharashtra Board · Class 12 · Chemistry
44 important questions from Biomolecules for Maharashtra Board Class 12 Chemistry, with answers. Includes multiple choice and multiple correct questions.
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Important Questions from Biomolecules
Identify the reducing sugars from the following options:
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Glucose, Fructose, Maltose
Reducing sugars contain free anomeric carbon that can reduce Benedict's or Fehling's reagent. Glucose, fructose, and maltose are reducing sugars, while sucrose is non-reducing as both anomeric carbons are involved in glycosidic linkage.
Identify the purine bases from the following:
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Adenine, Guanine
Purine bases have double ring structure. Adenine and Guanine are purines. Cytosine, Thymine, and Uracil are pyrimidines with single ring structure.
Which amino acid does not have a chiral carbon?
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Glycine
Glycine has the structure NH₂-CH₂-COOH where the α-carbon has two hydrogen atoms, making it achiral. All other amino acids have chiral α-carbons.
The hydrolysis of sucrose gives:
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Glucose + Fructose
Sucrose on hydrolysis with dilute acid or invertase enzyme gives equimolar mixture of D-glucose and D-fructose. This process is called inversion of sucrose.
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