Endocrine System Function Quiz

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Questions and Answers

What is the main function of the endocrine system?

  • To facilitate rapid communication within the body
  • To maintain homeostasis through slow-acting hormones (correct)
  • To regulate the body's response to stress
  • To control the body's immediate reactions

What is the main difference between amines and steroids?

  • Steroids have longer half-lives, while amines do not (correct)
  • Steroids come from tyrosine, while amines come from cholesterol
  • Amines are lipid soluble, while steroids are not
  • Amines are hydrophobic, while steroids are not

Which type of hormone may cause multiple different reactions if it has receptors on multiple organs and glands?

  • Protein hormones (correct)
  • Steroid hormones
  • Amine hormones
  • Peptide hormones

What is the role of the paracrine system in cell communication?

<p>To secrete chemicals to affect other nearby cells (B)</p> Signup and view all the answers

How do lipid soluble hormones travel through the cardiovascular system?

<p>They require help from proteins since they are hydrophobic (D)</p> Signup and view all the answers

What is the function of a second messenger in the hormone signaling process?

<p>Carrying the message from amino acid hormones into the cell (A)</p> Signup and view all the answers

What is the role of phosphodiesterase (PDE) in the hormone signaling process?

<p>Turning off cAMP to stop the cell's reaction (B)</p> Signup and view all the answers

What happens when downregulation occurs in response to hormone stimulation?

<p>The cells become less sensitive to the hormone (B)</p> Signup and view all the answers

How do the hypothalamus and pituitary gland function in the endocrine system?

<p>They store and secrete hormones produced in other glands (A)</p> Signup and view all the answers

What is the function of diacylglycerol (DAG) in the hormone signaling process?

<p>Activating protein kinases to start phosphorylation (C)</p> Signup and view all the answers

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