Meristematic tissue

they are immature cells

Vacuoles are absent

nucleus of each cell of this tissue is large and prominent

Cytoplasm is dense

TLS Online TPP Program

#Id: 9993

#XL - T Zoology

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

#Id: 9994

#XL - T Zoology

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

TLS Online TPP Program

#Id: 9995

#XL - T Zoology

TLS Online TPP Program

#Id: 9996

#XL - T Zoology

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

TLS Online TPP Program

#Id: 9997

#XL - T Zoology

Frizzled-G protein signaling activates PLC-beta, which cleaves PIP2 into DAG and IP3.

TLS Online TPP Program

#Id: 9998

#XL - T Zoology

Wnt/calcium pathway leads to the release of calcium stored within cells, and calcium acts as an important secondary messenger to modulate the function of many downstream targets.