The chances of a person being alive who is now 35 years old, till he is 75 are 8 : 6 and of another person being alive now 40 years old till he is 80 are 4 : 5. The probability that at least one of these persons would die before completing 40 years hence is

#Question id: 10491

#Unit 6. System Physiology – Plant

Acidification of the lumen stimulates zeaxanthin formation, and alkalinization favors violaxanthin formation. Lumen pH depends on photosynthetic photon flux density, most effective at

#Question id: 10492

#Unit 6. System Physiology – Plant

Three major distinct metabolic pathways that can supply osmotically active solutes to guard cells have been clearly characterized,

#Question id: 10493

#Unit 6. System Physiology – Plant

Which wavelength modulates guard cell osmoregulation by means of its activation of proton pumping, solute uptake, and stimulation of the synthesis of organic solutes;

#Question id: 10494

#Unit 6. System Physiology – Plant

Sucrose is an osmotically active solute in guard cells, One implication of these osmoregulatory features is that stomatal opening & closing is associated with which of the following given statements?

#Question id: 10495

#Unit 6. System Physiology – Plant

Guard cells have different mechanisms mediating responses to blue light. The npq1 mutant has a lesion in the enzyme that covert violaxanthin to zeaxanthin. What will causes if the npq1 mutant?

#Question id: 10496

#Unit 6. System Physiology – Plant

Blue light–stimulated stomatal opening is abolished by green light in the 500 to 600 nm region of the spectrum,what are these alphabet showing in the graph?