Neco Model Questions Vol1 2018 Biology Question 32

Practice objective / multiple choice question 32 from the 2018 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2018 Biology Objective / Multiple Choice Medium Difficulty
Question 32 NECO_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • objective

Using the Harris‑Benedict equation, estimate the basal metabolic rate (BMR) of a 16‑year‑old girl who weighs \(55\ \text{kg}\) and is \(160\ \text{cm}\) tall. Apply an activity factor of \(1.55\) to obtain her total energy expenditure (TEE). She consumes a diet providing \(2500\ \text{kcal}\) per day, with \(55\%\) of the calories from carbohydrates, \(30\%\) from fats and \(15\%\) from proteins. Determine the number of grams of each macronutrient she ingests. Compare these amounts with the recommended dietary allowances (RDA) for a teenage girl: 130 g carbohydrates, 46 g protein and 70 g fat. Identify which macronutrient exceeds its RDA by the greatest percentage.

Answer Options

A. TEE ≈ 2000 kcal; carbs ≈ 260 g, protein ≈ 70 g, fat ≈ 60 g. Only protein exceeds its RDA, by roughly 52 %.
B. TEE ≈ 2100 kcal; carbs ≈ 300 g, protein ≈ 80 g, fat ≈ 70 g. All exceed the RDA, with fats exceeding its RDA by about 100 %.
Correct Answer C. TEE ≈ 2164 kcal; carbs ≈ 344 g, protein ≈ 94 g, fat ≈ 83 g. All exceed the RDA, with carbohydrates exceeding its RDA by about 164 %.
D. TEE ≈ 2300 kcal; carbs ≈ 350 g, protein ≈ 100 g, fat ≈ 90 g. Carbohydrates exceed the RDA by about 150 %, which is the greatest among the macronutrients.
Correct Answer
C
Correct Option:
TEE ≈ 2164 kcal; carbs ≈ 344 g, protein ≈ 94 g, fat ≈ 83 g. All exceed the RDA, with carbohydrates exceeding its RDA by about 164 %.

About This Question

This is Neco Model Questions Vol1 2018 Biology Question 32. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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