Neco Model Questions Vol1 2019 Biology Question 17

Practice objective / multiple choice question 17 from the 2019 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2019 Biology Objective / Multiple Choice Medium Difficulty
Question 17 NECO_MODEL_QUESTIONS_VOL1 • 2019 • BIOLOGY • objective

The diagram shows a plate containing three food items with their masses: 150 g of cooked white rice (pure carbohydrate), 100 g of boiled beans (25 % protein, 75 % carbohydrate by mass) and 30 g of palm oil (pure fat). Using the energy values 4 kcal g⁻¹ for carbohydrate and protein and 9 kcal g⁻¹ for fat, calculate (a) the total caloric content of the meal, (b) the caloric contribution of each macronutrient, and (c) which macronutrient supplies the greatest proportion of the total calories, giving the percentage to the nearest whole number.

Answer Options

A. Carbohydrates, approximately 65 % of total calories
B. Proteins, approximately 71 % of total calories
C. Fats, approximately 71 % of total calories
Correct Answer D. Carbohydrates, approximately 71 % of total calories
Correct Answer
D
Correct Option:
Carbohydrates, approximately 71 % of total calories

About This Question

This is Neco Model Questions Vol1 2019 Biology Question 17. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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