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Plant Hormones & Tropisms:
Meristematic TissueThe found in zones of the plant where growth can take
place. Meristematic cells, in most plants, are undifferentiated cells which give rise to various organs of the plant and keep the plant
growing.
Apical Meristem Lateral Meristem(Vascular Cambium)
What essential growth process is occurring in the
meristematic tissue?
________________Growing points of the
____________ & ___________ allowing for an increase
in plant _____________.Growth which increases
the _________________ of the
plant.
Positive TropismGrowth __________________ a stimulus
Negative TropismGrowth __________________ a stimulus
Hormones are chemical messengers that are transported throughout an organism to stimulate an effect. Plants produce hormones….that’s right, they really do! Hormones
can affect cell division, growth and cell differentiation.
A tropism is a plants directional growth in response to an external stimulus.
AuxinsAuxins are produced in the __________ of
shoots and stimulate the __________________ and/or ___________________ of cells and
therefore the plant.
Gibberellins
Produced in _________. Provides energy by turning starch into
________.Can cause stem ________________ & _______
________________.