Xylem and Phloem - Part 3 - Translocation - Transport in Plants | Plants | Biology | FuseSchool
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Xylem and Phloem - Transport in Plants: https://bit.ly/2XcdNZE
Xylem and Phloem - Part 2 - Transpiration - Transport in Plants: https://bit.ly/39SwKmN
Structure Of The Leaf: https://bit.ly/3aRYoS9
Sugars move up and down the plant in the phloem. The phloem uses active transport to transport the food nutrients like glucose and amino acids around the plant.
Glucose is made in the leaves by photosynthesis. Glucose is converted into sucrose in the leaves, which then enters the phloem vessels, as do amino acids. They then need to be transported around the plant to every single cell.
The areas of the plant where sucrose is made are called the sources, and where they are delivered are called sinks.
The phloem uses active transport because the sucrose moves against its concentration gradient from a lower concentration, where it is made, to a higher concentration in the phloem cells.
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Plants have developed responses called tropisms. A tropism is a growth in response to a stimulus; so light and water in the plant’s case.
There are different types of tropisms: Positive tropisms are when growth is towards the stimulus - so the plant growing towards the light to maximise the stimul
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CREDITS
Animation & Design: Waldi Apollis
Narration: Dale Bennett
Script: Lucy Billings
Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will
also have noticed that they are different -
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Enzymes are really important proteins, that speed up the rates of reactions such as in photosynthesis, respiration and protein synthesis.
The enzymes and substrates are always moving, and occasionally they collide at the right speed and