Biophysics — DU B.Sc. (Hons) Physics Previous Year Question Papers

Roll Number ....... · · · · · · · · · · · · · · · · · ·· Name of Coone Name of. Paper Maximum Mar-b B.Sc. Prog. _ NEP _ DSE · Marks for each question are shown in bracket. Write your roll number on the question paper also Ques. l Do any five:- (a) What are Zymogens? Give one example. (b) Indicate how ATP hydrolysis or tapping into the H+ gr;ulient could lead to cell movement (d) (e) Give a brief account of various types of bonding involved in protein (t) (g) What is denaturation? Give one example. . Why biological membranes are called an insulator? Explain the formation of a glycosidic bond giving a suitable example. Ques. 2 Write short note on (a) Theories of enzyme action (7) Ques. 3 (a) What are fibrous and Globular proteins? Give one example of each. (b) What is denatmation? How can proteins be denatured? (5) (c) Descnoe the role of electrical forces in biological systems. (5) Ques. 4 (a) Give structure of two pyrimidine bases. (b) Describe active and passive transport in ~io-membranes. (11) Ques. 5 (a) Define rate of production and turnover number in a biological system and the enzyme responsible for these factors with example. (11) (b) Explain the factor on which the energy required for the formation of a cell depends. (4) Ques. 6 (a) Describe covalent and ionic bond with example (b) Discuss the biological importance of hydrogen bonding in living structures Give example to illustrate your ~er. (6)' Ques. 7 (a) What is the difference between ~olecular motors and molecular machines? Give example of each. (b) Define the function of a molecular motor with proper diagram. (6+9) Ques. 8 (a) What is genotype-phenotype map? Make a diagram to explain this. (b) What are the applications of genotype-phenotype map? (c) Explain Genetic architecture. (6+5+4)