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After watching a programme on TV about the adverse effects of junk food and soft drinks on the health of school children, Sonali, a student of Class XII, discussed the issue with the school principal. Principal immediately instructed the canteen contractor to replace the fast food with the fibre and vitamins rich food like sprouts, salad, fruits etc. This decision was welcomed by the parents and the students.
After reading the above passage, answer the following questions:
(a) What value are expressed by Sonali and the Principal of the school?
(b) Give two examples of water-soluble vitamins.
Concept: Introduction of Vitamins
Write the structural difference between starch and cellulose.
Concept: Biomolecules in the Cell > Carbohydrates >> Polysaccharides
Write the structural difference between starch and cellulose.
Concept: Biomolecules in the Cell > Carbohydrates >> Polysaccharides
What type of linkage is present in nucleic acids?
Concept: Introduction of Nucleic Acids
Which one of the following is a polysaccharide:
Starch, Maltose, Fructose, Glucose
Concept: Biomolecules in the Cell > Carbohydrates >> Polysaccharides
Which one of the following is a polysaccharide:
Starch, Maltose, Fructose, Glucose
Concept: Biomolecules in the Cell > Carbohydrates >> Polysaccharides
Define the following terms as related to proteins :
Peptide linkage
Concept: Biomolecules in the Cell > Proteins >> Peptide
Define the following term as related to proteins:
Denaturation
Concept: Biomolecules in the Cell > Proteins >> Denaturation of Proteins
What are the products of hydrolysis of maltose?
Concept: Biomolecules in the Cell > Carbohydrates >> Oligosaccharides
What do you understand by the term glycosidic linkage?
Concept: Biomolecules in the Cell > Carbohydrates >> Disaccharides
Define the following terms:
Oligosaccharides
Concept: Biomolecules in the Cell > Carbohydrates >> Oligosaccharides
What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
Concept: Biomolecules in the Cell > Nucleic Acids >> Chemical Composition of Nucleic Acids
Differentiate between the following:
Fibrous proteins and Globular proteins
Concept: Biomolecules in the Cell > Proteins >> Structure of Proteins
The two strands in DNA are not identical but are complementary. Explain.
Concept: Biomolecules in the Cell > Nucleic Acids >> Structure of Nucleic Acids
Which one of the following is a monosaccharide:
starch, maltose, fructose, cellulose
Concept: Biomolecules in the Cell > Carbohydrates >> Monosaccahrides
What is the difference between acidic amino acids and basic amino acids?
Concept: Biomolecules in the Cell > Proteins >> Amino Acids
Write the name of the vitamin whose deficiency causes bleeding of gums.
Concept: Introduction of Vitamins
Name the base that is found in nucleotide of RNA only.
Concept: Introduction of Nucleic Acids
Glucose on reaction with HI gives n-hexane. What does it suggest about the structure of glucose?
Concept: Biomolecules in the Cell > Carbohydrates >> Structures of Glucose
Which component of starch is a branched polymer of α-glucose and insoluble in water?
Concept: Biomolecules in the Cell > Carbohydrates >> Preparation of Glucose
