Plant Hormones

_________ growth responses to directional stimuli that can maintain the roots and shoots of flowering plants in a favourable environment.

When a shoot grows towards light, that is an example of.........

• Positive Geotropism

• Positive gravitropism

• Positive Hydrotropism

• Positive Phototropism

When a shoot grows away from gravity, that is an example of ......

• Negative phototropism

• Negative geotropism

• Positive phototropism

• Negative Hydrotropism

_____________ the orientation of a plant or other organism in response to light, either towards the source of light or away from it.

___ is a type of auxin

How does IAA move through cells of the shoot? By ___________

Another name for plant hormones is _______ _______ _______

What organelle is found in root tips?

What substance can be used to ripen fruit?

What plant hormone is used in opening and closing of the stomata?