There are three plants A,B and C. the flowers of plant A open their petals in bright light during the day but close them when it gets dark at night. On the other hand, the flowers of plant B open their petals at night but close them during the day when there is bright light. The leaves of plant C fold up and droop when touched with fingers or any other solid object.
(a) Name the phenomenon show by the flowers of (i) plant A, and (ii) plant B.
(b) Name one flower each which behaves like the flower of (i) plant A, and (ii) plant B.
(c) Name the phenomenon exhibited by the leaves of plant C.
(e) Which plant/plants exhibit the phenomenon based on growth movements?

Answer

(a) (i) Photonasty (ii) Photonasty (b) (i) Dandelion flower (ii) Moonflower (c) Thigmonasty (d) Sensitive plant (Minosa pudica) (e) A and B