Tuesday, January 27, 2009

Nastic movement

What is nastic movement? Give of an example of a plant that uses this type of movement.

4 comments:

Anonymous said...

Nastic movement is movement that is caused by an external stimulus, such as light or temperature, but is directionally independent of its source. They are changes in water pressure within specialized cells or differing rates of growth in parts of the plant. Examples include the opening and closing of crocus flowers following.

Rylee said...

Nastic movement is caused by external stimulus. It is a change in water pressure. It also differs rates of growth in plants.

Kelsey M. said...

Nastic movements are non-directional responses to stimuli. It occurs in only some plants. A tulip uses this movement.

kelseyr. said...

It is non-directional responses to stimuli. The light or tempurature is am example of this. An example a plant with this movement is tofuc plant.