Active K+ exchange mechanism for opening and closing of stomata was given by
Darwin
Levit
Scarth
Khorana
B.
Levit
The modern theory or K+ pump hypothesis for opening and closing of stomata was given by Levit, 1964.
The specific character of C4 plants is
bulliform cells
Kranz anatomy
parallel venation
isobilateral leaf
Photosynthetic bacteria have :
pigment system I (only one pigment system)
pigment system II
both (a) and (b)
some other type
C4 plants, synthesis of sugars/final CO2 fixation occurs in:
palisade cells
spongy cells
undifferentiated mesophyll cells
bundle sheath cells