Plant cells rely extensively on augmin-dependent microtubule branching nucleation to organize the microtubule cytoskeleton because they lack centrosomes.

TLS Online TPP Program

#Id: 10408

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 8166

#Unit 2. Cellular Organization

CFTR protein contains

a di-acidic sorting signal that binds to the Sec24 subunit

of the COPII vesicle coat and is necessary for transport of

the CFTR protein out of the ER.

TLS Online TPP Program

#Id: 3539

#Unit 2. Cellular Organization

The chloroplast genome is generally similar to that of mitochondria, except that there are more genes.

TLS Online TPP Program

#Id: 10050

#Unit 4. Cell Communication and Cell Signaling

Binding of Notch to Delta 

is followed by endocytosis of Delta by the signaling cell

TLS Online TPP Program

#Id: 1608

#Unit 4. Cell Communication and Cell Signaling

Apoptotic cells attract phagocytes by releasing the lipid mediator lysophosphatidic acid, which functions as a chemoattractant.