Curated Video
Tropism
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...
Curated Video
Tropisms and Hormones
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...
Curated Video
Plant Hormones - Tropisms & Auxins #52
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...
Curated Video
Plant Movement: Tropisms, Nastic Movements, and Their Importance
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!
msvgo
Movements in Plants
The nugget describes common plant movements. (phototropism, geotropism, chemotropism, hydrotropism, thigmotropism, thigmonasty).
FuseSchool
Uses of Plant Hormones
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, that cause the...
Curated OER
STEMbite: How Trees Grow
Go to the light! That's what trees do; they grow towards light since they need it to produce energy. This phenomenon is called phototropism. Trees also grow in response to gravity, a phenomenon known as geotropism. In this video, the...