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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?

To secrete chemicals to affect other nearby cells Signup and view all the answers

How do lipid soluble hormones travel through the cardiovascular system?

They require help from proteins since they are hydrophobic Signup and view all the answers

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

Carrying the message from amino acid hormones into the cell Signup and view all the answers

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

Turning off cAMP to stop the cell's reaction Signup and view all the answers

What happens when downregulation occurs in response to hormone stimulation?

The cells become less sensitive to the hormone Signup and view all the answers

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

They store and secrete hormones produced in other glands Signup and view all the answers

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

Activating protein kinases to start phosphorylation Signup and view all the answers