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SingaporeNutrition & Food ScienceQuick questions
Diet, Health and Special Needs
Quick questions on Energy needs and energy balance: N(A)-Level Nutrition and Food Science
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is calculating the energy in a food?Show answer
To find the energy in a food, multiply the grams of each macronutrient by its energy value and add the results. This is exactly how the energy figure on a nutrition label is worked out.
What are factors that affect energy needs?Show answer
Different people need different amounts of energy. The main factors are:
What is q1?Show answer
State the energy value in kcal of 1 g of protein, 1 g of fat and 1 g of carbohydrate. [3 marks]
What is q2?Show answer
A food contains 5 g protein, 8 g fat and 15 g carbohydrate. Calculate its energy in kilocalories. [3 marks]
What is q3?Show answer
State three factors that affect how much energy a person needs each day. [3 marks]
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