Final answer:
Oxygen transport is not a function of fat in the human body. Fats are used for energy storage, thermal insulation, and cushioning for organs, but they do not directly assist in oxygen transport.option D is correct answer.
Step-by-step explanation:
The function of fat in the human body that is not accurate is D. Oxygen transport. Fats, or lipids, have several crucial roles to play within the body. These include:
- Energy storage - Fats are significant as a major fuel source and are stored as triglycerides in adipose tissue. They provide energy when the body is at rest or during prolonged, low-intensity physical activities.
- Thermal insulation - Fat helps maintain body temperature by insulating the body, making it less susceptible to external temperature changes.
- Cushioning for organs - Fats act as a protective layer, cushioning and protecting vital internal organs from mechanical shock and injury.
- Oxygen transport - While fats are involved in various transport functions, including helping with the absorption of fat-soluble vitamins, they do not directly transport oxygen. Oxygen transport is primarily facilitated by the protein hemoglobin in red blood cells.
Therefore, among the options given, oxygen transport is the function that fats do not perform in the human body.