Gce Model Questions Vol1 2019 Biology Question 3

Practice essay / theory question 3 from the 2019 Gce Model Questions Vol1 Biology examination. This question covers Nutrition .

Gce Model Questions Vol1 2019 Biology Essay / Theory

Topic: Nutrition

Question 3 GCE_MODEL_QUESTIONS_VOL1 • 2019 • BIOLOGY • essay

Gce Model Questions Vol1 2019 Biology Question 3 diagram

The diagram shows a typical balanced diet plate used in nutrition education. The plate is divided into sections representing the main food groups and the approximate mass of food in each section: carbohydrates 150 g, proteins 60 g, fats 50 g, vegetables 200 g and fruits 120 g.

Question Parts

( a )

Identify the five food groups shown in the diagram.

( b )

State the principal physiological role of each macronutrient (carbohydrate, protein, fat) in the human body.

( c )

Using the masses given in the diagram and the standard energy values (carbohydrate = 4 kcal g⁻¹, protein = 4 kcal g⁻¹, fat = 9 kcal g⁻¹), calculate the percentage contribution of each macronutrient to the total caloric content of the plate.

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About This Question

This is Gce Model Questions Vol1 2019 Biology Question 3. It is one of the essay questions from the 2019 Gce Model Questions Vol1 Biology examination.

The question covers Nutrition .

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