Auxin in plant means for
cell elongation
fruit ripening
cell division
inhibit the root growth
A.
cell elongation
Auxins induce cell elongation. IAA is true auxin hormone. Auxins are generally acidic in nature.
Ethylene is responsible for ripening of fruits.
Cytokinin is the hormone responsible for cell division as it stimulates the metabolism and the formation of flowers on side shoots.
The thylakoid in chloroplast are arranged as
interconnected disc
interconnected sacs
stacked discs
none of the above
The non- photosynthetic, non- symbiotic N2 fixing bacteria are
Rhodobacter
Spirillum
Azotobacter
All of these
In monocot roots which types of vascular bundles are found?
Collateral, conjoint and closed
Radial with exarch xylem
Bicollateral, conjoint and closed
Radial with endarch xylem
In bacteria respiration occurs in
cytoplasmic membrane
mitochondria
nuclear membrane
endoplasmic reticulum