(DEC 2012) 70. An enzyme catalyzed reaction was measured in the presence and absence of an inhibitor for an uncompetitive inhibition, (1) only Km is increased (2) only is Vmax […]
Tag: csir biochemistry
No posts found.
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Selecting the Optimal Isozyme for Low Substrate Concentrations: Liver Enzyme Kinetics Explained
The correct answer is (1) A. Introduction Isozymes are enzyme variants catalyzing the same reaction but optimized for different tissue environments, frequently distinguished by their kinetic properties: the Michaelis constant (KmKm) […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Correcting Misconceptions in Enzyme Kinetics: Allosteric Behavior and Enzymatic Efficiency
(JUNE 2019) 57. Choose the INCORRECT statement from the following statements made for an enzyme- catalyzed reaction (1) The kinetic properties of allosteric enzyme do not diverge from Michaelis-Menten behaviour. […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Concerted Feedback Inhibition in Metabolic Pathways: Achieving Stoichiometric End Product Balance
The correct answer is (1) K inhibits F→G and L inhibits F→H; D→E is inhibited at equal amounts of K and L. Introduction Metabolic pathways often branch to produce multiple end […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Allosteric Regulation: Identifying Positive and Negative Effectors Through the Allosteric Constant LL
(DEC 2019 ASSAM) 55. An allosteric enzyme has two heterotropic effectors, X and Y. The allosteric constant, L for the enzyme in the absence of effector molecules is 180. For […]
![(NOV 2020-11) 53. The Hill equation and its plot describe the following enzyme kinetic behaviours A. Saturation Kinetics B. Cooperative Kinetics C. Log Vi/(Vmax — Vi) versus Log [s] D. Log (Vmax — Vi)/Vi versus Log [s]-1 Which one of the following combination represent correct descriptions? (1) A and C (2) B and C (3) B and D (4) A and D](https://www.letstalkacademy.com/wp-content/uploads/2025/09/53.jpg)
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding the Hill Equation and Hill Plot: Describing Cooperative Enzyme Kinetics
(NOV 2020-11) 53. The Hill equation and its plot describe the following enzyme kinetic behaviours A. Saturation Kinetics B. Cooperative Kinetics C. Log Vi/(Vmax — Vi) versus Log [s] D. […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Interpreting Ligand Binding Isotherms: Cooperativity and Protein Structure
The correct answer is (2) B is obtained with protein with positive cooperativity. Introduction The analysis of ligand binding isotherms provides insight into protein-ligand interactions, stoichiometry, and cooperative behavior in molecular […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Analyzing Elastase Substrate Specificity Using Kinetic Data: Rate, Residue Size, and Cleavage Preferences
The correct answer is (2) (B), (D), (E). Introduction Elastase is a proteolytic enzyme known for its specificity based on the size and nature of amino acid residues adjacent to its […]
![(SEPT 2022-1) 34. A student was asked to plot a graph representing enzyme kinetic data for initial velocity, vO , and substrate concentration [S] using any of the equations given below. The student used an equation for which neither X-axis nor Y-axis had independent variables. Which one of the following equation might the student have used? (1) 1/ vO = (Km/Vmax) 1/[S]+ 1/Vmax) (2) [S]/vO = [S]/Vmaxx + (Km /Vmax) (3) vO / [S] = (Vmax / Km) - vO / Km (4) vO = V max [S] / Km + [S]](https://www.letstalkacademy.com/wp-content/uploads/2025/09/34.jpg)
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Enzyme Kinetic Plots: Identifying Equations Without Independent Variables on Axes
(SEPT 2022-1) 34. A student was asked to plot a graph representing enzyme kinetic data for initial velocity, vO , and substrate concentration [S] using any of the equations given […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Substrate Concentration for Half-Maximal Velocity: Understanding Michaelis Constant (Km)
(JUNE 2010) 27. Km for enzyme is equal to where (1) V0=Vmax (2) 2V0= Vmax (3) 4V0=Vmax (4) V0 = 2 Vmax The correct answer is (2) Introduction In enzymatic reactions, […]
