Hormone Action and Regulation

Question 1

Possible outcomes for cells responding to multiple hormones

Answer 1

antagonistic effect, synergistic effect, permissive effect, integrative effect

Question 2

Antagonistic effect outcome

Answer 2

hormones effects cancel/balane each other out

Question 3

Synergistic effect outcome

Answer 3

net result is greater than individual

Question 4

Permissive effect outcome

Answer 4

first hormone needed for 2nd one to work

Question 5

Integrative effect outcome

Answer 5

complementary results

Question 6

What hormones play a role in growth?

Answer 6

growth hormone, thyroid hormones, insulin, PTH, calcitriol, reproductive hormones

Question 7

What can happen when a hormone binds to a receptor?

Answer 7

certain genes “turn on”, increased or decreased protein synthesis, change membrane permeability

Question 8

Differences between a hormone binding to a cell membrane receptor and hormone binding to a receptor inside the nucleus

Answer 8

• hormones binding to a membrane receptor require a 1st and 2nd messenger to activate proteins/enzymes
• hormones binding inside of the nucleus then take that hormone- receptor complex and binds to a genes to activate or deactivate genes

Question 9

What causes the release of hormones

Answer 9

response to stimuli

Question 10

What is negative feedback

Answer 10

feedback system in which a change gets reversed

Question 11

Hormones can be divided into what 3 groups

Answer 11

amino acid derivatives, peptide hormones, lipid derivatives (steroid hormones)

Question 12

What are the three groups of hormones made of

Answer 12

amino acid derivatives: amino acids
peptide hormones: chain of amino acids
steroid hormones: cholesterol