Lp 65

Question 1

-produced & secreted by epithelial cells
2 traditional groups:
-a.a derivative
-steroids (cholesterol derivatives)

Answer 1

Hormones

Question 2

Tropic hormones trigger release of?

Answer 2

Somatic hormones from other endocrine glands

Question 3

Somatic hormones act on?

Answer 3

Specific target organs

Question 4

-secretion of hormones generally controlled by?

Answer 4

Negative feedback

Question 5

Inhibition by hormones known as?

Answer 5

Feedback inhibition

Question 6

3 stimuli trigger hormone secretion:

Answer 6

-humeral
-neural
-hormonal

Question 7

2 mechanisms respond to hormonal stimulation:

Answer 7

-plasma membrane receptors & 2nd messenger systems

-intracellular receptors & direct gene activation

Question 8

-Activation of enzymes

Answer 8

2nd messenger systems

Question 9

1st messenger=

Answer 9

Hormones
-hormone binds to a transmembrane receptor
-binding activates a 2nd messenger that diffuses into cell

Question 10

2nd messenger activates?

Answer 10

Enzymes
-enzymes perform a Fxn
-limited molecules are used as 2nd messengers