Which of the following is true of the uterus?

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

well the answer is 2!