When a plant grows in a particular direction in response to an external stimulus. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...

Discover the hormones that dictate whether a plant grows downwards with gravity, towards water and nutrients, or upwards towards light. Biology - Plants - Learning Points. Tropisms allow plants to seek out the best conditions for...

This video covers: - The idea that plants respond to their surroundings just like animals do - But that plants use local hormones rather than a nervous system - How auxins enable plants to respond to light (phototropism) and gravity...

Have you noticed that plants tend to grow in the direction of the sun? This redirection towards the sun a form of tropism, or plant movement. Learn about the common types of plant movement and their benefits!

The nugget describes common plant movements. (phototropism, geotropism, chemotropism, hydrotropism, thigmotropism, thigmonasty).

In this video we are going to look at a few different ways in which plant hormones can be used.



Plant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones,...