Unit Four- Homeostasis and the Endocrine System

Question 1

what does the endocrine system do

Answer 1

works with the nervous system to act as internal communication network

-slower more subtle changes

Question 2

what are steroid hormones

Answer 2

-made from cholesterol

-hydrophobic (pass thru membranes and enter nucleus)

-activate genes to produce enzyme/protein to carry out desired reaction/activity

Question 3

what are non-steroid hormones

Answer 3

-made from proteins (cannot enter cells)
-bind to receptors

Question 4

-what is the master gland
- why
-what controls it

Answer 4

-the pituitary gland
-secretes tropic hormone that trigger other glands to secrete
-controlled by hypothalmus