Web making in spiders

Spiders make silk in a special part of their body called a gland and use their legs to pull it out of their bodies. This is called spinning.

TLS Online TPP Program

#Id: 9991

#Unit 4. Cell Communication and Cell Signaling

Rac and RhoA GTPases coordinate changes in cytoskeleton organization and also through Jun-N-terminal kinase (JNK) regulate gene expression

TLS Online TPP Program

#Id: 9992

#Unit 4. Cell Communication and Cell Signaling

Wnt/PCP signaling 

Functions to regulate the actin and microtubule cytoskeleton, & influences cell shape and behaviour (migration).

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

Planar Cell Polarity 

direct cells to divide in the same plane (rather than forming upper and lower tissue compartments) and to move within that same plane

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

The Wnt-Ca2+ pathway is initiated by Frizzled receptors activating a classical G protein-coupled signaling pathway.

TLS Online TPP Program

#Id: 9995

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 9996

#Unit 4. Cell Communication and Cell Signaling

In Wnt-Ca2+ pathway, Wnt binding to the receptor protein possibly Ryk, alone or in concert with Frizzled.