Mimosa leaves fold on touch because this is what type of movement?
Answer and explanation
Correct answer: Touch-induced movement
The governing concept is a rapid nastic movement in response to touch. Mimosa leaves fold when touched because a signal causes changes in ion and water movement in the pulvinus cells, changing their turgor pressure; this is not directional growth. Therefore, option A is correct. Light-induced, water-induced, and gravity-induced growth describe tropic responses that occur more slowly and depend on the direction of the stimulus.
Frequently asked questions
What is the correct answer to this question?
Touch-induced movement
Why is this the correct answer?
The governing concept is a rapid nastic movement in response to touch. Mimosa leaves fold when touched because a signal causes changes in ion and water movement in the pulvinus cells, changing their turgor pressure; this is not directional growth. Therefore, option A is correct. Light-induced, water-induced, and gravity-induced growth describe tropic responses that occur more slowly and depend on the direction of the stimulus.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
