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 ▸

Explain how a change in the primary structure may result in a non functional enzyme


How does the lock and key mechanism help enzymes to increase the rate of substrate reactions in the body?


State three differences between daughter cells produced by the process of mitosis and those produced by meiosis.


Effect of non-competitive inhibitor (on enzyme activity) on enzyme catalysed reaction