List of top Bioinformatics Questions on Biochemistry

Which statement best explains why Phosphofructokinase \((PFK-1)\) is considered the major regulatory enzyme of glycolysis?
Which coenzymes are involved in oxidation-reduction reaction? A. Thiamine pyrophosphate, B. Flavin mononucleotide, C. Flavin adenine dinucleotide, D. Lipoamide, E. Nicotinamide adenine dinucleotide.
What is the unit of first order rate constant?
Match List-I with List-II. List-I: A. Beer-Lambert law, B. Raman Spectroscopy, C. Fluorescence, D. NMR Spectroscopy. List-II: I. Inelastic Scattering, II. \(A=\varepsilon cl\), III. Emission at longer wavelength, IV. Chemical shift.
The law of thermodynamics that gives the idea of temperature is:
Match List-I with List-II. List-I: A. X-ray, B. Visible light, C. Infrared radiations, D. Ultraviolet radiation. List-II: I. \(400\,nm-700\,nm\), II. \(0.01\,nm-10\,nm\), III. \(700\,nm-1\,mm\), IV. \(10\,nm-400\,nm\).
Match List-I with List-II. List-I: A. Coenzyme Q, B. Biocytin, C. Pyridoxal Phosphate, D. Thiamin Pyrophosphate. List-II: I. Amino groups, II. Aldehyde, III. Carbon Dioxide, IV. Hydrogen atoms.
Given below are two statements: Assertion (A): Allosteric enzyme do not usually show classical Michaelis-Menten kinetic relationships between substrate concentration and \(K_m\). Reason (R): Their kinetic behaviour is greatly altered by variations in concentration of allosteric modulator.
The radiation emitted by human body is:
Match List-I with List-II. List-I: A. Coenzyme A, B. Cobamide coenzymes, C. Flavin Mononucleotide, D. Biocytin. List-II: I. Hydrogen atoms, II. Carbon Dioxide, III. Acyl group, IV. Alkyl group.
Identify the correct sequence of the Regulatory cascade of controlling glycogen breakdown. A. The active C Monomer of PKA activates Phosphorylase b kinase. B. Active Phosphorylase a catalyzes glycogen breakdown. C. Hormone binding activates adenylate cyclase. D. The active kinase converts the inactive phosphorylase b to active phosphorylase a. E. cAMP binds to the R-subunits of the PKA \(R_2C_2\) tetramer, causing their dissociation from C sub-units.
For a first order reaction, which of the following statements are correct? A. The half life are independent of initial concentration. B. The rate of constant has unit of \(s^{-1}\). C. The plot of \(\ln[A]\) vs. time is linear. D. A rate is independent of reactant concentration.
Arrange the following in chromatography process order: A. Pack column with stationary phase, B. Inject sample (mobile phase), C. Partition/adsorption of analytes, D. Elution by mobile phase gradient, E. Detection and fraction collection.
Which amino acid is responsible for forming disulfide bridges in a protein structure?
In the Michaelis-Menten equation, what does the constant $K_m$ represent?
Eicosanoids are a type of polyenoic fatty acids that consist of
(A). Leukotrienes
(B). Prostaglandins
(C). Lipoxins
(D). Cholesterol
Choose the correct answer from the options given below:
The sequence of reactions catalyzed by pyruvate dehydrogenase complex are:
(A). Decarboxylation of pyruvate
(B). Formation of Acetyl-CoA
(C). Formation of acetyl lipoamide
(D). Oxidation of dihydrolipoamide
Choose the correct answer from the options given below
The urea cycle takes place in which of the following compartments of the cell
(A). Cytosol
(B). Endoplasmic reticulum
(C). Mitochondrial matrix
(D). Peroxisomes
Choose the correct answer from the options given below:
The amino acid Tryptophan exhibits maximum UV absorption at what approximate wavelength
Amino acid that can form Di-sulfide linkage in protein