Ijmb Model Questions Vol1 2018 Biology Question 3

Practice essay / theory question 3 from the 2018 Ijmb Model Questions Vol1 Biology examination. This question covers Nutrition, Dietary requirements, Macronutrients .

Ijmb Model Questions Vol1 2018 Biology Essay / Theory
Topics: Nutrition Dietary requirements Macronutrients
Question 3 IJMB_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • essay

The diagram shows a labelled plate model of a balanced daily diet illustrating the major food groups and typical portion sizes.

Question Parts

( a )
Identify three food groups shown in the diagram and give one example food item for each group.
( b )
Using the recommended daily energy intake of 2000 kcal, where carbohydrates should supply 55 %, proteins 15 % and fats 30 % of the total energy, calculate the amount in grams of each macronutrient required per day. (Carbohydrate = 4 kcal g⁻¹, Protein = 4 kcal g⁻¹, Fat = 9 kcal g⁻¹)
( c )
The diagram indicates that one standard serving of cooked rice (150 g) provides 130 kcal and that rice derives 80 % of its calories from carbohydrate. Estimate how many servings of rice would be needed to meet the daily carbohydrate energy requirement calculated in part (b). Show your reasoning.
( d )
Discuss two health consequences of a chronic deficiency of each macronutrient (carbohydrate, protein, and fat).

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About This Question

This is Ijmb Model Questions Vol1 2018 Biology Question 3. It is one of the essay questions from the 2018 Ijmb Model Questions Vol1 Biology examination.

The question covers Nutrition, Dietary requirements, Macronutrients .

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