Question 3
NECO
•
2020
•
BIOLOGY
•
essay
The diagram shows a balanced diet plate divided into six food groups as recommended for a typical adult.
Question Parts
(
a
)
Identify the six food groups shown in the diagram and give two examples of foods for each group.
(
b
)
The recommended daily energy intake for an adult is 2500 kcal. The plate indicates that 50 % of the calories should come from carbohydrates, 20 % from proteins, 20 % from fats and the remaining 10 % from vitamins/minerals (which are considered negligible in caloric contribution). Given that carbohydrates and proteins each provide 4 kcal g⁻¹ and fats provide 9 kcal g⁻¹, calculate the approximate grams of each macronutrient the adult should consume per day.
(
c
)
Explain how the digestion and absorption of each macronutrient occurs, referencing the relevant organs shown in the diagram.
(
d
)
A student consumes the following in a day: 300 g of rice (mainly carbohydrate), 150 g of chicken breast (protein source), 70 g of oil (fat), and 200 g of mixed vegetables (carbohydrate and fibre). Using the calculations from part (b), assess whether the student's diet meets, exceeds, or falls short of the recommended macronutrient intake, and discuss possible health implications of the observed pattern.
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About This Question
This is
Neco
2020
Biology
Question 3.
It is one of the
essay
questions from the
2020
Neco
Biology
examination.
The question covers
nutrition, dietary_requirements
.