Wilting of leaves at noon and their recovery toward evening is known as
incipient wilting
temporary wilting
midday desiccation
permanent wilting
Artificial application of auxins like IAA, IBA and NAA to unpollinated pistils can form
fruits with much flash
larger fruits
sweet fruits
seedless fruits
In the electron transport chain, in terminal oxidation, the cytochrome, which donates electrons to O2 is
cytochrome- b
cytochrome- c
cytochrome- a3
cytochrome- a
Stomata open or close due to the ion
Ca2+
Na+
K+
Cu+
C.
K+
Opening and closing of stomata takes place due to the presence of K+ ion. When guard cellspossess more K+, endosmosis takes place, guard cells become turgid and stomata opening takes place.
The specific character of C4 plants is
bulliform cells
Kranz anatomy
parallel venation
isobilateral leaf
Which of the following clogs the cavity of the xylem vessels?
Tylosis
Cystolith
Hydathode
Raphide