Pharmacology Exam 1: Study of Substances and Their Effects
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Questions and Answers

Which branch of pharmacology deals with the undesirable effects of chemicals in living systems?

  • Pharmacodynamics
  • Medical pharmacology
  • Pharmacokinetics
  • Toxicology (correct)
  • What type of drug interacts almost exclusively with water molecules?

  • Xenobiotic
  • Osmotic agent (correct)
  • Chemical antagonist
  • Hormone
  • Which type of bond between a drug and its receptor is irreversible under biologic conditions?

  • Electrostatic bond
  • Covalent bond (correct)
  • Hydrophobic bond
  • Weak bond
  • What is the most common route of drug administration?

    <p>Oral</p> Signup and view all the answers

    Which mechanism of absorption depends upon the drug characteristics and uses transporter proteins to move drugs across membranes?

    <p>Facilitated diffusion</p> Signup and view all the answers

    In which environment are weakly acidic drugs easily absorbed?

    <p>Proximal duodenum</p> Signup and view all the answers

    What factor affects drug absorption by increasing the contact time in the gastrointestinal tract?

    <p>Constipation</p> Signup and view all the answers

    Which route of drug administration is not advisable in instances of decreased blood flow (shock states)?

    <p>Oral</p> Signup and view all the answers

    Which branch of pharmacology is concerned with the action of the chemical on the organism?

    <p>Pharmacodynamics</p> Signup and view all the answers

    What type of drugs are formed outside of the body?

    <p>Xenobiotics</p> Signup and view all the answers

    What is the branch of pharmacology that deals with the undesirable effects of chemicals in living systems?

    <p>Toxicology</p> Signup and view all the answers

    Which factor affects drug absorption by increasing the contact time in the gastrointestinal tract?

    <p>Contact time</p> Signup and view all the answers

    Which type of bond between a drug and its receptor is irreversible under biologic conditions?

    <p>Covalent</p> Signup and view all the answers

    In which environment are weakly acidic drugs easily absorbed?

    <p>Acidic environment (proximal duodenum)</p> Signup and view all the answers

    Which route of drug administration is advisable when blood flow is decreased, such as in shock states?

    <p>Intravenous route</p> Signup and view all the answers

    What is the mechanism of absorption that depends upon the drug characteristics and uses transporter proteins to move drugs across membranes?

    <p>Facilitated diffusion</p> Signup and view all the answers

    Which type of drugs are formed outside of the body?

    <p>Xenobiotics</p> Signup and view all the answers

    What is the process that involves drug getting into the circulation?

    <p>Absorption</p> Signup and view all the answers

    Which type of drugs interact almost exclusively with water molecules?

    <p>Osmotic agents</p> Signup and view all the answers

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