Dense plastids serve as gravity sensors

Gravity does not form gradient.

The only way of sensing gravity is through the motion of a sedimenting body.

In plants intracellular gravity sensors are large, dense amyloplast.

Statoliths –amyloplasts that function as gravity sensors.

Statocytes-specialized gravity sensing cells in which statoliths are present.

TLS Online TPP Program

#Id: 1464

#Unit 4. Cell Communication and Cell Signaling

Each classical cadherin molecule contains: 

A single transmembrane domain

A relatively short C-terminal cytosolic domain

Five extracellular “cadherin” domains (called EC1–EC5)

TLS Online TPP Program

#Id: 1328

#Unit 4. Cell Communication and Cell Signaling

β-adrenergic receptors are deactivated by, β-adrenergic receptor kinase (BARK)

TLS Online TPP Program

#Id: 9918

#Unit 4. Cell Communication and Cell Signaling

Innate response elements commonly engaged by encounter with viral PAMPs, such as secretion of type I interferons, inflammasome and NK-cell activation, as well as IL-12 production.

TLS Online TPP Program

#Id: 7837

#Unit 2. Cellular Organization

The direction of the transport processes depends on the localization of the Ran-GEF predominantly in the nucleoplasm and the Ran-GAP predominantly in the cytoplasm

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#Id: 5650

#Unit 7. System Physiology – Animal

A lesion that interrupts one optic nerve causes blindness in that eye.