Molecules sorting chart, please help

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism