wood frog Flashcards
What is the unique ability of wood frogs when it comes to cold temperatures?
Wood frogs can survive being frozen solid.
How low can the body temperature of a wood frog drop when it is frozen?
Below freezing, as low as -16 degrees Celsius.
What is the key factor that allows wood frogs to survive freezing?
They produce a type of antifreeze that protects their cells.
True or False: Wood frogs stop breathing when they are frozen.
True
How do wood frogs protect their vital organs during freezing?
They allow ice crystals to form in their body cavity but not in their cells.
What happens to a wood frog’s heart rate when it is frozen?
It stops beating.
What is the process called when a wood frog thaws out after being frozen?
Cryoprotective dehydration.
How do wood frogs recover after being frozen?
They rehydrate and their organs resume normal function.
What is the main advantage of freezing for wood frogs?
It helps them survive harsh winter conditions.
What triggers wood frogs to enter a state of freezing?
Shortening day length and dropping temperatures.
What is the approximate percentage of water in a wood frog’s body that turns to ice when frozen?
Approximately 45%.
What is the main challenge wood frogs face when frozen?
Avoiding cellular damage from ice crystals.
What is the name of the protein that acts as antifreeze in wood frogs?
Glycerol.
What is the primary reason wood frogs are able to survive freezing?
Their ability to prevent ice crystals from forming in their cells.
How long can wood frogs remain frozen?
Several months.
