Pointers

  1. Home
  2. Free Resources
  3. Pointers
  4. 1180
TLS Online TPP Program

#Id: 1180

The photosensitive pigment in the rods is called rhodopsin (visual purple).

#Unit 7. System Physiology – Animal #Vision #Part B Pointers
PYQ Links
  1. PYQ 1
Extensive Links
  1. Link 1
More Pointers
TLS Online TPP Program

#Id: 1417

#Unit 4. Cell Communication and Cell Signaling

When the Ca2+ levels drop: Myosin LC is dephosphorylated by MLC phosphatase, causing muscle relaxation.
TLS Online TPP Program

#Id: 1418

#Unit 4. Cell Communication and Cell Signaling

Integrins are the principal receptors used by animal cells to bind to the extracellular matrix. 

 
TLS Online TPP Program

#Id: 1419

#Unit 4. Cell Communication and Cell Signaling

An integrin molecule is composed of two noncovalently associated transmembrane glycoprotein subunits called α and β.
TLS Online TPP Program

#Id: 1420

#Unit 4. Cell Communication and Cell Signaling

Integrins function as transmembrane linkers (integrators) between the extracellular matrix and the actin cytoskeleton.
TLS Online TPP Program

#Id: 1421

#Unit 4. Cell Communication and Cell Signaling

Integrins bind extracellular matrix (ECM) glycoproteins, 1. Laminins  
2. Collagens 
3. Fibronectin
4. Vitronectin
TLS Online TPP Program

#Id: 1422

#Unit 4. Cell Communication and Cell Signaling

Fibronectin binds to integrin through an RGD motif.