Question

Почему не замерзает жидкость организма арктических рыб ? если проще что почему рыбы не мёрзнут в холодный океанов и т.д​

Answer 1

Арктические рыбы не замерзают, поскольку содержат природный антифриз. Замедление процесса формирования химических связей препятствует кристаллизации льда, которая была бы губительна для рыб. Конечно же, от более низких температур рыбу это не спасёт, но к тому времени и вода вокруг неё полностью замёрзнет

Answer 2

Why doesn't the liquid in the bodies of Arctic fish freeze?

Arctic fish have adaptations that allow them to survive in extremely cold temperatures without their bodily fluids freezing. Here are a few reasons why the liquid in the bodies of Arctic fish doesn't freeze:

1. Antifreeze Proteins: Arctic fish produce antifreeze proteins (AFPs) that lower the freezing point of their bodily fluids. These proteins bind to ice crystals and prevent them from growing, thereby inhibiting the formation of ice within the fish's tissues.

2. High Concentration of Solutes: Arctic fish have a higher concentration of solutes, such as salts and sugars, in their bodily fluids. This increases the osmotic pressure and lowers the freezing point of their fluids, preventing them from freezing at lower temperatures.

3. Cold Adapted Enzymes: The enzymes in Arctic fish are adapted to function at low temperatures. These enzymes have a higher flexibility and activity at cold temperatures, allowing the fish to maintain their metabolic processes even in freezing conditions.

4. Insulating Body Structures: Arctic fish have specialized body structures that help insulate them from the cold. For example, they may have thick layers of fat or specialized scales that reduce heat loss and maintain their internal body temperature.

It's important to note that while these adaptations help Arctic fish survive in cold environments, they still have limits. If the temperature drops too low or if the fish is exposed to extreme cold for extended periods, their bodily fluids can freeze, leading to potential harm or death.