Describe what is meant by photoperiodism

A response controlled by relative light and dark periods. The name of the receptors responsible for absorbing light are phytochromes. The photoperiodic stimulus is detected by the leaves of the plant. 

AO

Related Biology A Level answers

All answers ▸

If you're measuring an environment using a quadrat or another sampling instrument - why can't you just do it where you see the most biodiversity?


How do alveoli create a surface for efficient gas exchange?


Explain how an action potential is generated


How is glucose absorbed by the body?