Multiple Choice
When energy-yielding nutrients are consumed in excess, which of the following are primarily stored in body fat?
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1. Introduction to Biochemistry
Lipids
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Fats are the most concentrated form of _____.
A
vitamin
B
protein
C
carbohydrate
D
energy
Verified step by step guidance1
Understand the role of macronutrients in the body: Fats, proteins, and carbohydrates are the three main macronutrients, each serving distinct functions. Fats are known for being the most energy-dense macronutrient.
Recall the energy content of macronutrients: Fats provide approximately 9 kcal per gram, whereas proteins and carbohydrates each provide about 4 kcal per gram. This makes fats the most concentrated source of energy.
Consider the biological importance of fats: Fats are stored in adipose tissue and serve as long-term energy reserves. They are also essential for cell membrane structure, hormone production, and insulation.
Eliminate incorrect options: Vitamins do not provide energy; they are micronutrients that assist in metabolic processes. Proteins and carbohydrates provide energy but are less concentrated compared to fats.
Conclude that fats are the most concentrated form of energy based on their high caloric content per gram and their role in energy storage and metabolism.
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