ask mattrab

3 Biology -- Nuclear Chemistry and Applications of Radioactivity

What is nyctinasty?

What is nyctinasty?

1 Answers

501 Views

Nyctinasty refers to the nastic movement of leaves or petals of higher plants in response to darkness (or the alternation of day and night). The closing of a flower at dusk, for instance, is a biological rhythmic event. It is a biological rhythm since this behavior recurs in each circadian day.

Nyctinasty movement is the rhythmic nastic movement of plant in response to the onset of darkness. It is also called as sleep movement. Drooping of legume leaves in dark is due to nyctinasty. Mimosa pudica shows Nyctinasty movement. 

More questions on Nuclear Chemistry and Applications of Radioactivity

What happens when we remove the ring of bark from plant?

The plant will definitely die.

Do insect ever feel pain? Like we kill mosquito ant spider do they feel pain?

As far as entomologists are concerned, insects do not have pain receptors the way vertebrates do. They don't feel ‘pain,’ but may feel irritation and probably can sense if they are damaged. Even so, they certainly cannot suffer because they don't have emotions. If you heavily injure an insect, it will most likely die soon: either immediately because it will be unable to escape a predator, or slowly from infection or starvation.

Close Open App