Which frog structure primarily stores fat and contributes to buoyancy?

Which frog structure primarily stores fat and contributes to buoyancy?

• A. Liver
• B. Spleen
• C. Pancreas
• D. Fat body

Answer: (D)

The main idea is how amphibians store energy in a way that also affects their buoyancy. In frogs, the fat body is a tissue rich in adipose cells that stores lipids as a long‑term energy reserve. Those fats are less dense than water, so having more fat tissue helps the animal stay buoyant while swimming. While the liver does store fat as part of overall energy metabolism, its primary role is metabolic processing, not buoyancy. The spleen is involved in immune function and blood storage, and the pancreas handles digestion and hormones. So the fat body best fits both storing fat and contributing to buoyancy.

The main idea is how amphibians store energy in a way that also affects their buoyancy. In frogs, the fat body is a tissue rich in adipose cells that stores lipids as a long‑term energy reserve. Those fats are less dense than water, so having more fat tissue helps the animal stay buoyant while swimming. While the liver does store fat as part of overall energy metabolism, its primary role is metabolic processing, not buoyancy. The spleen is involved in immune function and blood storage, and the pancreas handles digestion and hormones. So the fat body best fits both storing fat and contributing to buoyancy.