ICAR-ASRB Placement Paper Contributed by Krishna updated on May 2019

                                                           IVRI Model Paper

Biochemistry

1. The network of interrelated catabolic and anabolic pathways in cells is referred to as ______________

2. A system that exchanges both energy and material with its surrounding is said to be ______________

3. ________________ is a type of weak interaction that stabilizes the native conformation of a biomolecule or supramolecular complex.

4. The monomeric subunits of ________ are ribonucleotides.

5. The stretching and breaking of bonds that occurs during the conversion of a reactant to a product creates a ____________ state.

6. ____________ is a measure of randomness.

7. Enzymes enhance the rate of chemical reactions by lowering the __________ energy that constitutes an energy barrier between reactants and products.

8. mRNA molecules with two or more attached ribosomes are called ____________

9. ______________ is a component of eukaryotic cells consisting of microtubules, actin filaments, and intermediate filaments.

10. _____________ and _______________ are the two groups of extant prokaryotes.

11. The role of _____________ is to produce large number of ribosomes needed by the cell and have DNA that contain many copies of ribosomal RNA coding genes.

12. ________________ helps in the condensation of DNA molecule.

13. ____________, _______________ and __________ are three classes of cytoskeletal proteins.

14. ________________ is a complex of RNA and protein.

15. ______________ are molecular complexes of DNA plus associated histone and nonhistone proteins.

16. _____________ are compounds having electron-deficient functional groups; they tend to bond to electron-rich sites.

17. ______________ are steroisomers that cannot be superimposed.

18. ________________ are a pair of stereoisomers that are not mirror images of each other.

19. ___________ is the energy or heat content of a system.

20. Henderson-Hasselbalch equation = ____________________.

21. The glycan portion of glycoprotein is known as a ___________ group.

22. A covalent bond between two adjacent cysteines in a polypeptide chain is a __________ bond.

23. All stereoisomers must have at least one __________ centre.

24. ________________ procedure provides information about a protein’s primary structure.

25. The whole assortment of proteins in an organism.

26. ______________ are cellular agents that assist in protein folding at elevated temperatures.

27. _____________ is stable arrangement of few secondary structures.

28. ______________ is an amino acid which can either accept protons or donate them at a pH that is close to physiological pH values.

29. _______________ interactions are thought to be the driving force behind the formation of “molten globule” during protein folding.

30. Individual amino acids in a protein is called a ____________.

31. ______________ refers to the portion of a protein that is often composed of noncontiguous amino acid sequences and is usually defined on the basis of its contribution to protein function.

32. _________ is a type of secondary protein structure that extends 0.15 nm per amino acid residue.

33. _________ is a type of secondary protein structure that extends 0.35nm per amino acid residue.

34. Disrupting the hydrophobic interactions of a single subunit protein would have the greatest effect on the ____________ structure of that protein.

35. Proteins that belong to a ___________ have related structural features though they are unrelated based on their amino acid sequences.

36. The alpha-beta subunits in hemoglobin comprise a single__________; the intact haemoglobin tetramer contains two of these.

37. The saddle conformation is a __________________ structure.

38. alpha-Keratin is referred to as a _______________ ____________ of protein subunits; haemoglobin with only four subunits is referred to as a(n) ____________

39. Beta turn is an example of ___________ structure.

40. ______________ occurs when the binding of one ligand increases or decreases the binding of additional ligands.

41. The _______________ immune system protects against bacterial infections.

42. ______________ has a hyperbolic oxygen binding curve, no quarternary structure and serves as an oxygen “reservoir” in muscle cells.

43. ______________ has a sigmoid oxygen binding curve and has a quaternary structure.

44. ______________ is also called programmed cell death.

45. The metabolic intermediate _________________ binds to haemoglobin with a stoichiometry of 1:1 and promotes the release of oxygen.

46. A helper T cell can signal nearby lymphocytes by secretion of a signal protein called ______________

47. The contribution of lactic acid in muscle tissue contributes to the _______ effect, which explains the link between lactate production and an increased release of oxygen from haemoglobin.

48. RBCs transport carbon dioxide produced by respiring tissues in two forms: as bicarbonate ions and as _____________

49. ___________ are small molecules covalently attached to large proteins in the laboratory in order to elicit an immune response.

50. _____________ is a particular molecular structure within antigen that binds an individual antibody.
 

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