SSC GD 2023 PYQ — Question 33

The correct answer is option 2 i.e. one gram of protein

The oxidation of 1 gram (0.036 ounces) of protein provides 4 kilocalories of energy.

• The same is true for carbohydrates.
• Fat yields 9 kilocalories.

• The energy released from food, through the process of cellular respiration is food energy.

• Food energy is derived from carbohydrates, fats, and proteins, as well as organic acids, polyols, and ethanol present in the diet.

• The number of calories in a food depends on the amount of energy the food provides.

• The caloric value of carbohydrates, protein, and fat is 4 kcal/g, 4 kcal/g, and 9 kcal/g respectively.

• Carbohydrates and fats (lipids) are the chief energy sources although proteins can also give energy.