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Bozeman Science
Behavior and Natural Selection
Paul Andersen explains how the behavior of various organisms is shaped by natural selection. The action of phototropism and the timing of photoperiodism have both been shaped by the relative availability of light. Courtship in the...
Bozeman Science
Mechanisms of Timing and Control
Paul Andersen explains how organisms regulate timing and control. Phototropism and Photoperiodism allow plants to respond to light throughout the day and year. Circadian rhythms are used in all organisms (including animals) as an...
SciShow
Weird Places Europe's Dancing, Crooked Forests
Hank takes you through the weird, twisted forests of Russia and Eastern Europe, where trees grow at odd angles. What caused trees to grow into big wooden pretzels? Was it wind? Manipulation by woodworkers? Nazis, maybe? See for yourself...
Curated Video
Plant Responses
This video describes how plants respond to the changes in their environment such as stimuli, drought, and phototropism.
Curated Video
Tropism
When a plant grows in a particular direction in response to an external stimulus.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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
Life cycle of an oak tree
Do you know how many years an oak tree can live for?
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Life processes - Green plants
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Plant growth
Learning Points
Following germinati
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n a taproot, grows from the seed.
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Life processes - Green plants
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Plant growth
Learning Points
Following germinati
o
n a taproot, grows from the seed.
...
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!
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,...
Plant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones,...
Visual Learning Systems
Photosynthesis and Plant Responses: Plant Responses
Students will learn why photosynthesis is so important to us. The different plant structures and compounds involved in photosynthesis and transpiration are highlighted. Beyond photosynthesis, plant responses to certain stimuli and...
PBS
Tropism and Dormancy | UNC-TV Science
Since plants can't move to a better environment, they have their own way of dealing with less-than-ideal conditions. A quick animation provides learners with an overview of the strategies plants use to adapt within their environments....
Bite Sci-zed
Phototropism and Plant Hormones!
Ever wonder why all the sunflowers in a field face the same direction? Phototropism of course! Scholars get a quick but informative explanation of phototropism and plant hormones in an engaging video presentation. The narrator describes...
Be Smart
Do Plants Think?
Plants react to many different stimuli, but do they think? After many years, scientists now have a definite answer. A video shares the theories and facts as part of a larger biology playlist. From plants listening to music to plants...
FuseSchool
Plant Hormones: Tropisms
Why do stems grow up and roots grow down? A video from the Fuse School Plants playlist explains the four types of tropisms that control plant growth. Simple graphics demonstrate the importance of each type of tropism for various parts of...
Bozeman Science
Protists
Where do we put the organisms that don't fit in the other eukarya groups? We call them protists. A video explains why there is so much variety within the kingdom and the few things they do have in common with each other.
Bozeman Science
Archaea
There's archaea in my primordial soup! Viewers watch a video that explains what an archaea is, why it took us so long to find them, how they are different from eucaryota and bacteria, and the interesting discoveries about their...
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...
Indiana University
Indiana University: Plants in Motion: Tropism
View time-lapse videos that show how plants respond to their environment. Observe how phototropism and gravitropism result from differential growth in plants.
Khan Academy
Khan Academy: 5 a B, Responses to the Environment
Review and analyze over a phototropism investigation in this video. This video shows a worked example of an AP biology exam free response question. [6:53]
Bozeman Science
Bozeman Science: Behavior and Natural Selection
Paul Andersen explains how the behavior of various organisms is shaped by natural selection. The action of phototropism and the timing of photoperiodism have both been shaped by the relative availability of light. Courtship in the bower...
Bozeman Science
Bozeman Science: Mechanisms of Timing and Control
Paul Andersen explains how organisms regulate timing and control. Phototropism and Photoperiodism allow plants to respond to light throughout the day and year. Circadian rhythms are used in all organisms (including animals) as an...