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The characteristic red colour of hemoglobin is due to
Biochemistry Pharmacist Competitive Exams
Q. The characteristic red colour of hemoglobin is due to
Ans → Heme
Explanation →
This question is taken from the test/quiz post: Biochemistry Important One Liners Questions On HEMOGLOBIN AND PORPHYRINS - attemp/practice
More oneliners in - Biochemistry Important One Liners Questions On HEMOGLOBIN AND PORPHYRINS
Q. The oxidation of ferrous (Fe2+) iron to ferric (Fe3+) iron in hemoglobin results in the formation of a compound namely
Ans → Methemoglobin
Explanation →
Q. Name the compound that is increased in RBC of anemic patients to facilitate the supply of O2 to the tissues
Ans → 2,3-Bisphosphoglycerate
Explanation →
Q. Sickling of RBC in sickle-cell anemia is due to polymerization of
Ans → Deoxyhemoglobin,
Explanation →
Q. The disorders characterized by decreased synthesis or total absence of globin chains of hemoglobin are collectively known as
Ans → Thalassemias
Explanation →
Q. The intermediate of citric acid cycle that is involved in heme synthesis
Ans → Succinyl CoA
Explanation →
Q. The enzyme defect in acute intermittent porphyria
Ans → Uroporphyrinogen synthase I
Explanation →
Q. The enzyme that is regulated by feedback inhibition in heme synthesis is
Ans → δ -Aminolevulinate synthase
Explanation →
Q. The compound that facilitates the release of O2 from oxyhemoglobin
Ans → C1– , H+ , 2, 3-BPG
Explanation →
Q. Name the amino acid that directly participates in the synthesis of heme
Ans → Glycine
Explanation →
More one-liners in - Biochemistry
Q. Name the molecule that slides between the stacked nitrogenous bases of the DNA double helix, potentially resulting in a frameshift mutation
Ans → intercalating agent
Explanation →
Q. The scientist who observed that there exists a relationship between the contents of purines and pyrimidines in DNA structure
Ans → Erwin Chargaff
Explanation →
Q. Tablet, which does not contain a disintegrant and which is sucked to dissolve in the mouth to produce either a local (e.g., antiseptic) or systemic (e.g., vitamins) effect.
Ans → lozenge
Explanation →
Q. the method for producing gasoline from heavy petroleum distillates.
Ans → catalytic cracking
Explanation →
Q. When the forward and reverse rates are equal in a chemical reaction.
Ans → equilibrium
Explanation →
Q. An organism that requires oxygen at levels lower than atmospheric concentration
Ans → microaerophile
Explanation →
Q. Usually small, flat, and soft tablets, which are designed to be placed under the tongue to allow direct absorption of the active ingredient through the mucosa for systemic effect.
Ans → sublingual tablets
Explanation →
Q. A polypeptide composed of amino acids bonded together by peptide bonds.
Ans → Proteins
Explanation →
Q. An activated and differentiated B cell that is programmed to respond to secondary exposures to a specific antigen
Ans → memory B cell
Explanation →
Q. Time required to achieve the minimum effective plasma concentration following administration of the dosage form.
Ans → onset of drug action
Explanation →
Q. substance(s) is(are) involved in the regulation of plasma calcium level
Ans → Calcitriol , Parathyroid hormone, Calcitonin
Explanation →
Q. Measure of the fraction of a given drug that is absorbed intact into the systemic circulation from a dosage form, relative to a recognized, clinically proven, standard dosage form of that drug.
Ans → relative bioavailability
Explanation →
Q. This refers to a cytokine signal released from a cell to a receptor on a nearby cell
Ans → paracrine function
Explanation →
Q. Glycoprotein expressed on the surface of all nucleated cells and involved in the presentation of normal “self” antigens and foreign antigens from intracellular pathogens
Ans → MHC I molecule
Explanation →
Q. A a DNA molecule resulting from the cutting and insertion of DNA from one organism into the DNA of another organism, resulting in a new combination of genetic material
Ans → recombinant DNA molecule
Explanation →
Q. The carbohydrate that is taken as a reference for writing the configuration of others
Ans → Glyceraldehydes
Explanation →
Q. The lipids that possess both hydrophobic (non -polar) and hydrophilic (polar) groups are known as
Ans → amphipathic
Explanation →
Q. The term given to organic molecules which contain no multiple bonds.
Ans → saturated
Explanation →
Q. The bonds in protein structure that are not broken on denaturation.
Ans → Peptide bonds
Explanation →
Q. Type of mutation involving the addition of one or more bases into a DNA sequence
Ans → insertion
Explanation →
Q. The ‘parent’ nucleotide synthesized in the biosynthesis of purines is
Ans → Inosine monophosphate
Explanation →
Q. When a mix of liquids is separated by heating it up because one liquid boils at a different temperature than the other.
Ans → distillation
Explanation →
Q. Salivary -amylase becomes inactive in the stomach primarily due to
Ans → Inactivation by low pH
Explanation →
Q. The science of studying a collection of mRNA molecules produced from microbial communities
Ans → metatranscriptomics
Explanation →
Q. Name a microorganism that has an optimum growth temperature close to the temperature of boiling water
Ans → hyperthermophile
Explanation →