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.
Assertion: Secondary metabolites are produced in small quantities and their extraction from the plant is difficult and expensive.
Reason: Secondary metabolites can be commercially produced by using tissue culture technique.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which of the following is a day neutral plant
Helianthus annuus
Euphorbia pulcherrima
Avena sativa
Beta vulgaris
Identify the incorrect statement about ABA growth regulator
It increases the tolerance of plants against different stresses.
It acts as general plant growth inhibitor and inhibitor of metabolism.
It helps in seed maturation and dormancy.
It promotes morphogenesis and differentiation of shoots.
Pencils are prepared from the wood of
Pinus vinaster
Juniperus virginiana
Chamaecyparis piscifera
Abies pindrow
