Hormones mode of action Flashcards

1
Q

What are the 3 modes of hormone action?

A
  1. Pathways involving intracellular hormone receptors.
  2. Activation of specific intracellular proteins via secondary messages.
  3. Alteration of membrane transport mechanism.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Provide a brief description of mechanism A (Pathways involving intracellular hormone receptors)

A
  • Directly alter nuclear activity.
  • To initiate or suppress biosynthesis of a specific protein.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Provide a brief description of mechanism B (Activation of specific intracellular proteins via secondary messages)

A
  • Involves cell membrane hormone receptors.
  • Rather than intracellular hormone receptors.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Provide a brief description of mechanism C and outline how it works (Alteration of membrane transport mechanis)

A
  • Involves cell membrane hormone receptors to alter membrane permeability.
  • After binding to a membrane receptor, hormones activate carrier molecules within the membrane.
  • This increased the movement of substances from outside to inside the cell.
  • Therefore affecting cell function.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly