ABA causes stomata to close by reversing the accumulation of potassium salts in guard cells and inducing the conversion of sugars into starch. 

The resulting fall in solute concentration leads to loss of water from the guard cell into the apoplast by osmosis, a fall in guard cell turgor, and closing of the stomatal pore. 

TLS Online TPP Program

#Id: 6366

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 189

#Unit 5. Developmental Biology

Potency, commitment, specification, induction, competence, determination and differentiation; morphogenetic gradients; cell fate and cell lineages; stem cells; genomic equivalence and the cytoplasmic determinants; imprinting; mutants and transgenics in analysis of development

TLS Online TPP Program

#Id: 8281

#Unit 1. Molecules and their Interaction Relevant to Biology

In absence of water the magnitude of the charge–charge interaction is significantly greater.

TLS Online TPP Program

#Id: 1164

#Unit 7. System Physiology – Animal

Minimal Change Nephropathy 

negative charges on the basement membrane are lost

TLS Online TPP Program

#Id: 1740

#Unit 4. Cell Communication and Cell Signaling

Daudi tumor cells, which are unable to synthesize β 2-microglobulin.