In electrophoretic separation the phenomenon of electroendosmosis (also known as electro-osmotic flow) which is due to the presence of charged groups on the surface of the support medium.

TLS Online TPP Program

#Id: 1566

#Unit 4. Cell Communication and Cell Signaling

Noncanonical pathways can be divided into two types: 

1. The “planar cell polarity” pathway

2. The “Wnt/calcium” pathway

TLS Online TPP Program

#Id: 5859

#Unit 10. Ecological Principles

Larger populations are more resistant to extinctions.  Greater ranges of habitats promote increased speciation rates.

TLS Online TPP Program

#Id: 5978

#Unit 10. Ecological Principles

Productivity per day ( NPP per ground area per day )  Tropical forest > Temperate forest > Tropical savannas and grass land > Temperate grass land = Mediterranean shrub land >  Crops > Desert = Boreal forest > Arctic tundra 

Mediterranean shrub land = Desert > Arctic tundra >  Temperate grass land > Tropical forest > Tropical savannas and grass land >  Temperate forest > Crops > Boreal forest  

TLS Online TPP Program

#Id: 9081

#Unit 4. Cell Communication and Cell Signaling

The increase in K+ permeability hyperpolarizes the membrane, which reduces the frequency of heart muscle contraction.

TLS Online TPP Program

#Id: 5448

#Unit 7. System Physiology – Animal

During the refractory periods, excitable cells are incapable of producing normal action potentials