Endocrine Processes

Question 1

What is the 4 step process by which nonsteroidal hormones create changes in a cell?

Answer 1

1) hormone binds to membrane receptor
2) sets off a series of reactions that activates the enzyme
3) catalyzes a reaction that produces a second messenger molecule
4) oversees other cell changes that promote response to the target cell

Question 2

What is the 6 step process by which steroids trigger changes in cells?

Answer 2

1) diffuse through the membrane of target cells
2) enter the nucleus
3) binds to a specific receptor protein
4) binds to specific sites on cell’s DNA
5) activates genes to transcribe mRNA
6) translated into the cytoplasm

Question 3

Negative Feedback

Answer 3

Feedback that results from an external or internal stimulus; rising hormone levels inhibit further hormone release

Question 4

Hormonal stimulus

Answer 4

Endocrine glands are prodded into action by other hormones

Question 5

Humoral stimulus

Answer 5

Changing blood levels of certain ions and nutrients stimulates hormone release

Question 6

Neural stimulus

Answer 6

Nerve fibers stimulate hormone release

Question 7

Which type of glands are ductless glands- Exocrine or endocrine?

Answer 7

Endocrine