Study Material
BIOMOLECULES
Very Short Answer Questions
Q1. Define Carbohydrates.
Q2. Name the different types of carbohydrates on the basis of their hydrolysis Give one example for each.
Q3. Why are sugars classified as reducing and non-reducing sugars?
Q4. What do you understand from the names (a) aldo pentose and (b) ketoheptose?
Q5. Write two methods of preparation of glucose.
Q6. Glucose reacts with bromine water to give gluconic acid. What information do you get from this reaction about the structure of glucose?
Q7. Glucose and gluconic acid on oxidation with nitric acid give saccharic acid. What Information do you get from this reaction about the structure of glucose?
Q8. Glucose reacts with acetic anhydride to form penta acetate. What do you understand about the structure of glucose from this reaction?
Q9. Give any two reasons to understand that glucose molecule has no open chain structure.
Q10. D-glucose means dextro rotatory glucose. Is it true? Why?
Q12. Write the ring structure of D-glucose. What are their names?
Q13. Write the ring structure and open chain structure of fructose.
Q14. What do you understand by invert sugars?
Q15. What are amino acids? Give two examples.
Q16. Write the structure of alanine and aspartic acid.
Q17. What do you mean by essential amino acids? Give two examples for non essential amino acids
Q18. What is Zwitter lon? Give an example.
Q19. What are proteins ? Give an example.
Q20. What are fibrous proteins ? Give examples.
Q21. What are globular proteins? Give examples.
Q22. How are proteins classified with respect to peptide bond?
Q23. What are the components of a nucleic acid?
Q24. Write the names of three types of RNA
Q25. Write the biological functions of nucleic acids.
Q26. Name the vitamin responsible for the coagulation of blood.
Q27. What are monosaccharides?
Q28. What are reducing sugars?
Q29. Write two main functions of carbohydrates in plants.
Q30. Classify the following into monosaccharides and disaccharides (i) ribose (ii) 2-deoxy ribose (iii) maltose (iv) fructose
Q31. What do you understand by the term glycosidic linkage?
Q32. What is glycogen? How is it different from starch?
Q33. What are the hydrolysis products of (i) sucrose and (ii) lactose?
Q34. What is the basic structural difference between starch and cellulose?
Q35. What happens when D-glucose is treated with the following reagents (i) $\ce{ HI}$ (ii) Bromine water (iii) $\ce{ HNO3}$
Q36. Enumerate the reactions of D-glucose which cannot be explained by its open chain structure.
Q37. What are essential and non-essential amino acids? Give one example for each.
Q38. Define the following as related to proteins (i) Peptide linkage (ii) Primary structure (iii) Denaturation
Q39. What are the common types of secondary structure of proteins?
Q40. What type of bonding helps in stabilizing the $\ce{ \alpha}$-helix structure of proteins?
Q41. Differentiate between globular and fibrous proteins.
Q42. How do you explain the amphoteric behaviour of amino acids?
Q43. Why are vitamin A and vitamin C essential to us? Give their important sources.
Q44. What are nucleic acids? Mention their two important functions.
Q45. What is the difference between a nucleoside and a nucleotide?
Q1. How are the carbohydrates classified on the basis of their (a) Taste (b) Hydrolysis (c) Functional groups.
Q2. Write a brief note on the structure of glucose
Q3. Write short notes on Sucrose.
Q4. Write the structure of maltose and lactose. What are the products of hydrolysis of maltose and lactose ?
Q5. Write about polysaccharides with starch and cellulose as examples.
Q6. Write the importance of carbohydrates.
Q7. Explain the classification of proteins as primary, secondary, tertiary and quarternary proteins with respect to their structure.
Q8. Explain the denaturation of proteins.
Q9. What are enzymes? Give examples.
Q10. Explain the role of sucrose in its hydrolysis.
Q11. Write notes on vitamins.
Q12. What do you understand by The two strands of DNA are complementary to each other? Explain.
Q13. What are hormones? Give one example for each. (i) steroid hormones (ii) Poly peptide hormones and (iii) amino acid derivatives.
Q14. Give the sources of the following vitamins and name the diseases caused by their deficiency (a) A (b) D (c) E and (d) K
Q1. Explain the classification of carbohydrates.
Q2. Discuss the structure of glucose on the basis of its chemical properties.
Q3. Write notes on (a) fructose(b) sucrose (c) maltose (d) lactose
Q4. Write notes on (a) starch (b) cellulose (c) importance of carbohydrates
Q5. Write notes on amino acids.
Q6. Write notes on proteins.
Q7. Write notes on (a) enzymes and (b) vitamins
Q8. Explain the structures of $\ce{ DNA}$ and $\ce{ RNA}$.
Q9. Write notes on the functions of different hormones in the body.