TLS Online TPP Program

#Id: 5454

#Unit 7. System Physiology – Animal

The basis for the relative refractory period is the higher K+ conductance than is present at rest. 

TLS Online TPP Program

#Id: 10548

#Unit 4. Cell Communication and Cell Signaling

Intrinsic apoptosis pathway is mediated by an activated initiator caspase (caspase-9)

TLS Online TPP Program

#Id: 1770

#Unit 4. Cell Communication and Cell Signaling

CD28 on the T cell and CD80/86 (B7) on the APC provided the costimulatory signal required for T-cell activation.

TLS Online TPP Program

#Id: 10490

#Unit 4. Cell Communication and Cell Signaling

perforins punch holes in the endocytic vesicle membrane, allowing granzymes to enter the cytoplasm

TLS Online TPP Program

#Id: 4480

#Unit 13. Methods in Biology

Histological samples are often stained with hematoxylin and eosin (“H&E stain”).