Free Questions and Answers for All Medical Students all over the World
Q- Deficiency of the enzyme argininosuccinate in urea cycle leads to the accumulation of which one of the following? A- Arginine B- Argininosuccinate C- Citrulline D- Ornithine Q- Epinephrine acts on which one of the following receptors to constrict vascular smooth muscle? A- α1-Adrenoceptors B- α2-Adrenoceptors C- β1-Adrenoceptors D- β2-Adrenoceptors Q- Which of the following … Read more
Q- A middle aged male represents with an edematous circular skin lesion of black eschar. Which of the following bacteria is the most likely the causative organism of this condition? A- Bacillus anthracis B- Pneumonitis aeruginosa C- Staphylococcus aureus D- Streptococcus viridans Q- During spermatogenesis, which type of cells enter meiosis 1 to from primary … Read more
Q- Which one of the following medications stimulates muscarinic receptors in airways when inhaled? A- Bethanechol B- Carbachol C- Methacholine D- Pilocarpine Q- Which of the following characterizes syndrome of inappropriate antidiuretic hormone secretion? A- Euvolemic hyponatremia with continued Na excretion B- Hyperosmotic volume contraction C- Recommended treatment is desmopressin acetate and hydration D- … Read more
Q- Which one of the following medications act as bacteriostatic by inhibiting bacterial dihydrofolate reductase? A- Ciprofloxacin B- Dapsone C- Sulfamethoxazole D- Trimethoprim Q- Which of the following statements is true about innate immunity? A- Highly specific and refined over time B- Its main components are T cells, B cells and circulating antibodies C- … Read more
Q- Which of the following correctly describes pleiotropy? A- Increased severity of a disease in succeeding generations B- Not all individuals with mutant genotype show the same mutant phenotype C- One gene contributes to multiple phenotypic effects D- Phenotype is always the same among individuals having the same genotype Q- Decreased production of which type … Read more
Q- Acute decrease in response to a drug after initial or repeated intake is known as which of the following drug interactions? A- Additive B- Permissive C- Synergetic D- Tachyphylactic Q- Which one of the following correctly describes nicotinic Ach receptors? A- Enzyme-linked receptors B- G-protein–coupled receptors C- Ligand-gated Na+/K+ channels Q- Which of the … Read more