Question

What is the type of movement that occurs during the opening and closing of flowers?
A. Nastic movement
B. Tactic movement
C. Tropic movement
D. Nutation

Answer 1

Hint: Two forms of movements primarily occur in plants. The movement dependent upon growth is known as the movement of tropics and the movement dependent on growth known as the nastic movement.

Complete answer: Plants do not move from one location to another but in response to external stimuli they also move. Plants exhibit various kinds of movement. It could or could not be a development movement. Two forms of movement primarily occur in plants. Plants do not move from one location to another but in response to external stimuli, they also move. Plants exhibit various kinds of movement. It could or could not be a development movement. Two forms of movements primarily occur in plants. Dependent movement on growth is called a tropical movement, and non-growth-dependent movements are known as a nastic movement. Now let us find the solution from the given alternatives - moving a vegetable part in response to an external stimulus that cannot decide the direction of the stimulus in which it is guided is called the nastic movement. The nasties as they are also known. A stimulus can also be characterized as light, heat, touch, etc. Nastic movement is no stimulus-response spatial movement of the section of the plant. Flower movement is a form of nastic movement during opening and closing. Tactical motion is locomotive movements induced by other external unidirectional stimuli.
Hence, the correct answer is option A.

Note: Nutation is a spontaneous movement of plants; the movement of plants is tropical, tactical, and nastic. Epinasty is the bending downward of a leaf due to the greater development on the top than on the bottom.