Tortoises need to put on weight before going into hibernation.
fat
The yellow marrow in the medullary cavity in long bones functions as a fat storage area.
Fat.
Glycogen (made up the macromolecule carbohydrates)
Fat is the long term energy storage medium for most animals. Glycogen is the short term storage medium. Glycerol is the backbone of triglycerides.
The body converts glycogen to fat for long-term energy storage through a process called lipogenesis. When there is excess glycogen in the body, it is converted into fatty acids and stored in fat cells for later use as energy.
not long
If your bony then distrabution but if your a decent size then the fat will turn into storage.
Glycogen is the primary long-term energy storage molecule in humans. It is mainly stored in the liver and muscles and can be broken down into glucose to provide energy when needed. Additionally, adipose tissue (body fat) serves as a secondary long-term energy store in humans.
Body Fat is used for long term storage. For short term storage the body uses Adenosine Triphosphate (ADT.)
it is the fat your body stores for later when you are hungry i think.