Vikasa School Chemistry Past Paper PDF 2024-2025

The Vikasa School, Tuticorin Academic Year (2024 – 2025) Class: XII Subject: Chemistry Tr’s Ini: RP & SR Rapid Fire of 60 Questions in Unit 10 : Biomolecules 1. ….. are polyhydroxy aldehydes or poly hydroxy...

The Vikasa School, Tuticorin Academic Year (2024 – 2025) Class: XII Subject: Chemistry Tr’s Ini: RP & SR Rapid Fire of 60 Questions in Unit 10 : Biomolecules 1. ….. are polyhydroxy aldehydes or poly hydroxyl ketones or large polymeric molecules which on hydrolysis yield poly hydroxyl aldehydes and poly hydroxyl ketones. 2. …….. are those poly hydroxyl aldehydes or poly hydroxyl ketones which cannot be decomposed further by hydrolysis to give simpler carbohydrates. 3. Some common examples of Monosaccharides are ……… 4. The Carbohydrates which upon hydrolysis give a definite number (2-10) of molecules of Monosaccharides are called………. 5. Some common examples of disaccharides are …………. 6. The carbohydrates which upon hydrolysis give two units of the same or different Monosaccharides are called…………. 7. The carbohydrates which upon hydrolysis give a large number of Monosaccharides molecules are called …….. 8. Carbohydrates which are sweet in taste are called … 9. Carbohydrates which are not sweet in taste are called … 10. The carbohydrates which are capable of reducing Tollen’s Reagent and Fehling’s Solution are called ……. 11. The Carbohydrates which are unable to reduce Tollen’s Reagent and Fehling’s Solution are called …… 12. Write the structural elucidation of Glucose with relevant equation. (all reactions) 13. Draw the structure of Glucose and Fructose. 14. List out the tests for Glucose and Fructose. 15. Explain in detail and draw the structure of maltose, sucrose and lactose. 16. Explain in detail about starch (Amylose, Amylopectin), cellulose, glycogen, gums, pectins. 17. ……… aree the basic building units of proteins. 18. Amino acids contains both …… group and ……… group. 19. Draw the structure of amino acids. 20. Draw the structure of Zwitter ion and Define. 21. What are the three categories of amino acids. 22. Explain essential and non-essential amino acids. 23. The lack of essential amino acids in diet can cause disease such as ………….. 24. Define isoelectric point. 25. What is peptide bond, how it is formed. 26. What is N – terminal and C – terminal carbon atom. 27. Differentiate Fibrous proteins and Globular proteins. 28. Explain in detail about primary, secondary, tertiary and quaternary structure of proteins. 29. Define denaturation and give some common methods that may be sued for coagulation of a protein. 30. Define the terms: Prosthetic group, Co enzyme, Co factor and apoenzyme. Vik / Cl XII / WC / Che / Unit 10 / RP & SR [ 2024 – 25] Page 1 31. ……………. are the chemical substance which are secreted by ductless glands and establish communication between different cells to coagulate their development and to control their activities. 32. The congential disease …….. is caused by the deficiency of enzyme called phenylalanine hydroxylase. 33. The another disease caused due to the deficiency of enzyme is ……………. 34. Recently, the enzyme ……… has been used to dissolve such as Clot. 35. The ……. and …………. have significant effects on anabolic system. 36. ………….. is secreted by pancreas and is responsible for maintaining the sugar level in the blood. 37. ……. caused contraction of the uterus during child birth and ……… is responsible for controlling the reabsorption of water in the kidneys. 38. …… and ……. are examples of amine hormones. 39. ….,, constitute an important class of Biomolecules which are present in the nuclei of all living cells. 40. The types of Nucleic acids are ……. and ……… 41. Expand DNA and RNA. 42. What are the three chemical constituents present in nucleotide? 43. The nucleotide present in DNA contains whereas that present in RNA contains …….. sugar units. 44. The nitrogen base residue present in a nucleotide is a heterocyclic nitrogenous base and is a derivative of either …………… or ………………. 45. The commonly found purines are …… and ……… 46. The commonly found pyrimidiens are ………… and ………. 47. What are the base residues present in DNA and RNA? 48. The base – sugar unit present in a nucleic acid chain is termed as a …….. 49. Expand : AMP, dAMP, ATP and UDP 50. Write the structural differences between DNA and RNA. 51. Explain in detail about DNA. 52. The DNA sequence that codes for a specific protein or polypeptide is called a ……….. 53. The relationship between the nucleotide triplets and the amino acids is called the ……. 54. A chemical changes in a DNA molecules which could lead to synthesis of proteins with a different amino acid sequence is termed as a ………….. 55. If one strand of DNA has the sequence of ATGCTTGA, what is the sequence of the complementary strand? 56. What will be the sequence of bases on m – RNA molecule which is synthesized on the following strand of DNA? 57. ……… may be defined as a group of organic compounds which are required in very small amounts for the healthy growth and normal functioning of animal organism. 58. The two types of vitamins are …. & ………. 59. Which vitamin is neither soluble in water not in fat? 60. Tabulate the important vitamins, their chemical name and deficiency diseases. Vik / Cl XII / WC / Che / Unit 10 / RP & SR [ 2024 – 25] Page 2