(DEC 2013) 8. Enzymes help to lower the activation energies of reactions by (1) covalent interaction with substrates. (2) binding only with the solvent molecules, (3) changing reaction equilibria. (4) […]
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CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES (62)
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Properties of Enzymes: Understanding What Enzymes Can and Cannot Do in Catalysis
7.Which of the following is NOT a property of an enzyme (1) from complex with substrate (2) decrease activation energy (3) decrease Gibb’s free energy (4) Increases rate of reaction […]
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Properties of Enzymes: Understanding What Enzymes Can and Cannot Do in Catalysis
6. Which of the following is NOT a property of an enzyme (1) from complex with substrate (2) decrease activation energy (3) decrease Gibb’s free energy (4) Increases rate of […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Enzyme-Substrate Interactions: Mechanisms, Models, and Catalytic Processes
6. Enzymes do not interfere with (1) Path of reaction (2) Rate of reaction (3) Activation energy (4) Reaction equilibrium The correct answer is (4) Reaction equilibrium. Enzymes accelerate the rate […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Do Enzymes Affect Chemical Equilibrium? Understanding Enzyme Action in Catalysis
The correct answer is (1) disturbing the equilibrium of the chemical reaction. Enzymes are biological catalysts—they speed up reactions and alter the pathway (lower activation energy), but do not change the reaction’s […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Types of Bonds in Enzyme-Substrate Interaction: Which Is Not Present?
The correct answer is (3) Peptide bond. Peptide bonds are not typically formed between enzyme and substrate; rather, these covalent bonds connect amino acids in proteins, forming the enzyme’s structure, not […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Endothermic Reaction with Least Activation Energy: Graph Identification and Explanation for CSIR NET Life Sciences
3. Which graph represents the endothermic reaction with least activation energy? (‘A’ Substrate→ ‘B’ Product) The correct answer is Option 3. This graph best represents an endothermic reaction with the least activation energy where ‘A’ (substrate) transitions to ‘B’ (product). Introduction […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
How Do Enzymes Accelerate Reaction Rates? Lowering Activation Energy Explained
2. Enzymes accelerates rate of reaction by (1) Lowering number of transition states (2) Lowering the activation energy of highest transition state (3) Providing direct energy to substrate (4) Providing […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Enzyme Catalysis and Activation Energy
Enzymes accelerate a reaction by which one of the following strategies? (1) Decreasing energy required to form the transition state. (2) Increasing kinetic energy of the substrate. (3) Increasing the […]
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Which One Is NOT a Vasoconstrictor? Prostacyclin, Thromboxane A2, Angiotensin-II, or Endothelin-1?
Which one of the following is NOT a vasoconstrictor? (1) Prostacyclin (2) Thromboxane A2 (3) Angiotensin-ll (4) Endothelin-1 Which One Is NOT a Vasoconstrictor? An In-Depth Explanation Understanding the complex […]
