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 (A)</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 (B)</p> Signup and view all the answers

In which environment are weakly acidic drugs easily absorbed?

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

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

<p>Constipation (B)</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 (D)</p> Signup and view all the answers

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

<p>Pharmacodynamics (D)</p> Signup and view all the answers

What type of drugs are formed outside of the body?

<p>Xenobiotics (D)</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 (D)</p> Signup and view all the answers

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

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

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

<p>Covalent (B)</p> Signup and view all the answers

In which environment are weakly acidic drugs easily absorbed?

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

Which type of drugs are formed outside of the body?

<p>Xenobiotics (B)</p> Signup and view all the answers

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

<p>Absorption (B)</p> Signup and view all the answers

Which type of drugs interact almost exclusively with water molecules?

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

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