Biology Chapter 11

Front 1

Ligand gated channel receptors

Back 1

signal molecule binds as a ligand to the protein receptor, which either opens or closes the gate
-very important in the nervous system

Front 2

G-Protein linked receptors

Back 2

-works as molecular switch, if GDP is attatched, switch is off, but if GTP is attatched, switch is on
-signal moelcule binds to extracellular part of receptor, which activates receptor, then binds to inactive side of G-protein, making GTP replace GDP

Front 3

Tyrosine Kinase

Back 3

-first individual polypeptides, then bind and become dimers: activae each other, adds phosphate from an ATP molecule on tail of other polypeptide
-relay proteins recognize receptor proteins, changes structure of protein, leads to cellular response

Front 4

What are the 3 steps in cell signaling?

Back 4

1) Reception
2) Transduction
3) Response

Front 5

What are second messengers?

Back 5

-small,nonprotein, water-soluble ions that spread throughout cell by diffusion

Front 6

Ligand gated channel receptors

Back 6

signal molecule binds as a ligand to the protein receptor, which either opens or closes the gate
-very important in the nervous system

Front 7

G-Protein linked receptors

Back 7

-works as molecular switch, if GDP is attatched, switch is off, but if GTP is attatched, switch is on
-signal moelcule binds to extracellular part of receptor, which activates receptor, then binds to inactive side of G-protein, making GTP replace GDP

Front 8

Tyrosine Kinase

Back 8

-first individual polypeptides, then bind and become dimers: activae each other, adds phosphate from an ATP molecule on tail of other polypeptide
-relay proteins recognize receptor proteins, changes structure of protein, leads to cellular response

Front 9

What are the 3 steps in cell signaling?

Back 9

1) Reception
2) Transduction
3) Response

Front 10

What are second messengers?

Back 10

-small,nonprotein, water-soluble ions that spread throughout cell by diffusion