stimuli&responses in plant

A stimulus is ___________

• a change in an organisms surroundings.

• process in which organisms grow larger.

• a reaction to a change in surroundings

• tropism

what type of tropism is occurring here?

• phototropism

• thigmotropism

• geotropism

• tropictropism

what type of tropism is occurring here?

• phototropism

• thigmotropism

• geotropism

• tropictropism

This picture would represent which type of tropism?

• Phototropism
• Geotropism
• Hydrotropism
• Thigmotropism

What type of tropism response to water? 

• Hydrotropism
• Gravitropism
• Thigmotropism
• Phototropism

Plant’s roots grow down, anchoring it into the soil. To what stimulus is the plant responding?

• thigmotropism
• hydrotropism
• phototropism
• gravitropism

What is an example of a stimulus for plants?

• Touch

• Gravity

• Light

• all of the above

What type of tropism response to water? 

• Hydrotropism
• Gravitropism
• Thigmotropism
• Phototropism

Mimosa sp. responds to touch by folding its leaves inwards when touched. The responds occurs rapidly.

• Thigmotropism

• Phototropism

• Geotropism

• Nastic movement

When the plant grows toward the light.

• Negative hydrotropism

• Positive geotropism

• Negative phototropism

• Positive phototropism