Tropisms

Thigmotropisms is the response towards

Roots give response in

• Phototropism

• Geotropism

• Hydrotropism

• Nastic movement

There are two types of response in Plants. Tropism and ...

What makes a tropism positive or negative?

• Positive = movement towards stimulus, Negative = movement away from stimulus

• Negative = movement towards stimulus, Positive = movement away from stimulus

• Who cares? It doesn't matter whether it is positive or negative

• Positive = when a plant is happy, Negative = when a plant is sad

What is the stimulus in this example?

• Internal

• Light

• Touch

• Temperature

Which part of the plant shows negative geotropism?

• The roots

• The leaves and stem

Long-Day and Short-Day plants are examples of flowering responses in response to?

• Photoperiodism

• Tropism

• Geotropism

• Thigmotropism

True or False: Tropisms are how plants respond to stimuli.

• True

• False

Phototropism is a a plants response to what type of stimulus?

• Light

• Darkness

• Touch

• Gravity

Stems growing up against gravity is called?

• Negative Geotropism

• Positive Geotropism

• Negative Thigmotropism

• Positive Thigmotropism