Question

The excess energy consumed is stored in the body in the form of collagen protein.

Hint:

Carbohydrates are stored as glycogen only up to a limited capacity ($\approx 400\text{g}$ in muscles and $\approx 100\text{g}$ in the liver). Any excess carbohydrate intake beyond this storage capacity is converted into triglycerides through de novo lipogenesis and stored permanently in fat cells.

Answer 1

Step 1: Analyzing Energy Metabolism:
When an individual consumes more macronutrients (carbohydrates, fats, or proteins) than their body expends for basal metabolism and physical activity, the body enters a positive energy balance. This excess energy must be stored for future use.

Step 2: Identifying Storage Forms vs. Structural Proteins:

• Collagen is a rigid, fibrous structural protein found in extracellular matrices, skin, tendons, ligaments, and bones. It is not an energy storage molecule and cannot be broken down to supply energy during caloric deficits.
• Excess dietary energy is converted primarily into triacylglycerols (triglycerides neutral lipids) and stored within the specialized vacuoles of adipose tissue (fat). A smaller amount of excess carbohydrate is stored as glycogen in the liver and skeletal muscles.

Step 3: Conclusion and Correction:
Therefore, the statement is False.
Corrected Statement: “The excess energy consumed is stored in the body in the form of adipose tissue (fat) and glycogen, not as collagen protein.”