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Name a substance that loses water to form a lower hydrate or becomes anhydrous spontaneously.
Pharmaceutics Pharmacist Competitive Exams
Q. Name a substance that loses water to form a lower hydrate or becomes anhydrous spontaneously.
Ans → efflorescent
Explanation →
This question is taken from the test/quiz post: one liners Pharmaceutics| B.Pharmacy| Pharmacy file-3 - attemp/practice
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Q. An Obstacle such as coating or embedding, which acts as a factor controlling the rate of drug release.
Ans → diffusion barrier
Explanation →
Q. Name a stage in the drying of solids, above which the drying rate is linear, at which the drying rate ceases to be linear, until it reaches the equilibrium moisture content.
Ans → critical moisture content
Explanation →
Q. Formulation in which individual doses of a granulated dosage form are separated
Ans → divided granule
Explanation →
Q. Type of comparative bioavailability study designed in such a way as to take into account differences in bioavailability arising from differences between patients suffering from disease
Ans → crossover study
Explanation →
Q. Powder formulation in which individual doses of a powdered dosage form are separately wrapped
Ans → divided powder
Explanation →
Q. Name term that describes a solid of regular shape and the presence of three-dimensional order on the level of atomic dimensions, for a given molecule.
Ans → crystalline
Explanation →
Q. A Formulated preparation of molecules/drugs that are rarely if ever suitable for administration to patients without additives.
Ans → dosage form
Explanation →
Q. Dosage form in which the active ingredient is insoluble in the carrier; includes aerosols, suspensions, emulsions , and foams
Ans → disperse system
Explanation →
Q. A Biologically active substance, which when biodistributed in the body is expected to modify one or more of its functions.
Ans → drug
Explanation →
Q. Solid preparation that on contact with water breaks apart by the effect of gas evolution, resulting commonly from the reaction of hydrogen carbonate with citric or tartaric acid, in order to facilitate dissolution or dispersion of the active ingredient before ingestion.
Ans → effervescent tablet
Explanation →
Q. Opposite of deliquescence; the drying of a salt solution when the vapour pressure of water in the saturated solution of a substance is greater than the partial pressure of water in the ambient air.
Ans → efflorescence
Explanation →
Q. Name a technological process, which consists of mixing or inclusion of the therapeutic substance with an excipient or their mixtures, typically as a matrix dosage form, in order to change the rate of release.
Ans → embedding
Explanation →
Q. Sweet (often colored) dilute alcohol-based, “hydroalcoholic”, liquid used in the compounding of drugs to be taken by mouth in order to improve palatability.
Ans → elixir
Explanation →
Q. The process of separating the lighter particles of a powder from the heavier ones by means of an upward-directed stream of fluid
Ans → elutriation
Explanation →
Q. Name a substance that loses water to form a lower hydrate or becomes anhydrous spontaneously.
Ans → efflorescent
Explanation →
More one-liners in - Pharmaceutics
Q. Relative amount of the administered dose of a drug that reaches systemic circulation from a certain dosage form in comparison to the amount that reaches the systemic circulation by iv administration
Ans → bioavailability
Explanation →
Q. Bonds forms between the hydroxyl groups of two sugar molecules
Ans → glycosidic bond
Explanation →
Q. The Threshold detergent concentration at which micelle formation begins in the bulk phase is called
Ans → critical micelle concentration (cmc)
Explanation →
Q. Small edible package made usually from gelatin or other materials that can be filled with drugs (solids or liquids) to produce a unit dose, mainly for oral use.
Ans → capsule
Explanation →
Q. FIGLU (formimino glutamic acid) is excreted in urine in the deficiency of vitamin
Ans → Folic acid
Explanation →
Q. A chemical reaction where water is introduced in another substance usually to separate it.
Ans → hydrolysis
Explanation →
Q. Artificial spherical lipid bilayer droplet formed mainly from phospholipids having a core of water phase, small enough to form a relatively stable dispersion in aqueous media and with potential use in drug delivery.
Ans → liposome
Explanation →
Q. Release of a drug from a dosage form that it is not immediate
Ans → modified release
Explanation →
Q. An enzyme of purine metabolism associated with immunodeficiency disease
Ans → Adenosine deaminase
Explanation →
Q. Lowest concentration of an antibacterial drug necessary to inhibit the growth of a microorganism.
Ans → minimum inhibitory concentration (MIC)
Explanation →
Q. Plasma lipoprotein that is inversely correlated with coronary heart disease is
Ans → HDL
Explanation →
Q. Type of comparative bioavailability study designed in such a way as to take into account differences in bioavailability arising from differences between patients suffering from disease
Ans → crossover study
Explanation →
Q. The migration of a double bond in a 3-carbon system from carbon atoms one and two to carbon atoms two and three
Ans → allylic rearrangement
Explanation →
Q. An equimolar mixture of the two enantiomeric isomers of a compound.
Ans → racemic mixture
Explanation →
Q. The network of neurons that connects the CNS with organs, sensory organs, and muscles throughout the body
Ans → peripheral nervous system
Explanation →
Q. The lipids that are not the structural components of biological membranes
Ans → Triacylglycerols
Explanation →
Q. The nitrogen atoms in the purine ring are obtained from
Ans → Glycine , Glutamine , Aspartate
Explanation →
Q. Dry solid material consisting of many, usually free flowing, fine particles.
Ans → powder
Explanation →
Q. Name the structure embedded in the dermis from which hair grows
Ans → hair follicle
Explanation →
Q. The amino acids required for the synthesis of purines and pyrimidines are
Ans → Glutamine and aspartate
Explanation →
Q. The most important carbohydrate associated with flatulence caused by ingestion of leguminous seeds
Ans → Raffinose
Explanation →
Q. Compounds that have the same molecular formula but different structural formulas
Ans → Isomer
Explanation →
Q. Name the term that refers to a nonpolar molecule or portion of a molecule not capable of strong attraction to water molecules
Ans → hydrophobic
Explanation →
Q. The process by which proteins lose their 3-D (tertiary and secondary) structure by application of an external stress, most often heat.
Ans → Denatured
Explanation →
Q. The phenomenon of disorganization of native protein structure is known as
Ans → Denaturation
Explanation →
Q. Muscular contractions of the gastrointestinal tract that propel ingested material through the stomach,
Ans → peristalsis
Explanation →