The sleep of the giants
Natural antifreeze inside the trunk
Evergreen strategies across the globe
YOUR GOAL
Master of How trees survive winter
artiteacher The sleep of the giants
Pumping sweet sugar right into my cells, my own antifreeze when the winter wind blows.
artiteacher Trees enter a state of dormancy, temporarily halting their growth and metabolic processes to survive freezing temperatures.
artiteacher Trees use a specialized layer of cells called the abscission zone to safely detach leaves before winter arrives.
artiteacher Swipe away freezing frost to learn how giant trees survive their winter nap.
Leaf recycling: Before dropping leaves, trees salvage up to 50 percent of their nitrogen, storing it in roots to jumpstart growth in spring.
A state of temporary metabolic inactivity or minimal activity in an organism. In autumn, trees produce abscisic acid to trigger this protective state and survive freezing winter temperatures.
Which plant hormone triggers the cells to digest themselves and detach a tree's leaf in autumn?
What is the name of the protective, cork-like substance that seals a tree's leaf scar after shedding?
What valuable nutrient do trees salvage and store in their roots before leaves fall?
What temperature can a dormant sugar maple tree withstand without freezing to death?