Question

The opening of floral buds into flowers is a type of:

• A. Autonomic movement of growth
• B. Autonomic movement of locomotion
• C. Autonomic movement of variation
• D. Paratonic movement of growth

Answer 1

The correct option is A

Autonomic movement of growth

The opening of floral buds into flowers is a type of autonomic movement of water which is due to epinasty.

Hyponastic and epinastic movements occur in bifacial organs like young leaves, flower sepals, petals etc., and result due to the differential growth on the two sides of such organs. For instance, if there is more growth on the lower side of sepals and petals, the flower will close. Such movements are called as hyponastic movements. On the other hand, if there is more growth on their upper side the flower will open. Such movements are called as epinastic movements.