Dr. F. Went noted that if coleoptile tips were removed
and placed on agar for one hour, the agar would
produce a bending when placed on one side of
freshly-cut coleoptile stumps. Of what significance
is this experiment?
(a) It made possible the isolation and exact
identification of auxin.
(b) It is the basis for quantitative determination of
small amounts of growth-promoting substances.
(c) It supports the hypothesis that IAA is auxin.
(d) It demonstrated polar movement of auxins
and placed on agar for one hour, the agar would
produce a bending when placed on one side of
freshly-cut coleoptile stumps. Of what significance
is this experiment?
(a) It made possible the isolation and exact
identification of auxin.
(b) It is the basis for quantitative determination of
small amounts of growth-promoting substances.
(c) It supports the hypothesis that IAA is auxin.
(d) It demonstrated polar movement of auxins