Circulatory System Quiz

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Questions and Answers

Which vessel receives blood from systemic circulation?

  • Right pulmonary artery
  • Left pulmonary artery
  • Superior vena cava
  • Inferior vena cava (correct)

Which layer of the heart wall is the inner lining?

  • Epicardium
  • Myocardium
  • Pericardium
  • Endocardium (correct)

Which part of the heart pumps blood through the lungs?

  • Superior vena cava
  • Inferior vena cava
  • Right heart (correct)
  • Left heart

Which vessel carries blood exiting to pulmonary circulation?

<p>Left pulmonary artery (B)</p> Signup and view all the answers

Where does the heart lie within the mediastinum?

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

Which class of large biological molecules do nucleic acids belong to?

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

What are macromolecules composed of?

<p>Thousands of covalently connected atoms (D)</p> Signup and view all the answers

What is the main function of carbohydrates?

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

Which group of molecules are described as hydrophobic?

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

What is the main role of nucleic acids?

<p>Hereditary information storage and transmission (C)</p> Signup and view all the answers

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