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📋 DOCUMENT OVERVIEW 60 Qs
This document, "NST 10 Final (UC Berkeley)," is a comprehensive exam-style resource that covers
essential topics in human nutrition, including essential nutrients, food fortification, dietary supplements,
micronutrients, and biochemical processes such as condensation reactions and glycosidic bond
hydrolysis. It provides 60 questions with correct answers and detailed explanations, giving students a
valuable study aid to review and solidify their understanding of these concepts. By leveraging this
resource, students can effectively prepare for exams by reviewing key concepts, testing their
knowledge, and gaining a deeper understanding of human nutrition principles.
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EXAM QUESTIONS
QUESTION 1
Which of the following best describes essential nutrients?
A) Compounds that are toxic in excess but provide no nutritional value
B) Substances that can be synthesized by the human body, but have no dietary importance
C) Nutrient types that must be obtained from diet to maintain health
D) Chemicals that are naturally found in food, but have no impact on human energy production
CORRECT ANSWER
C) Nutrient types that must be obtained from diet to maintain health
RATIONALE: Essential nutrients are compounds that cannot be synthesized by the human body and must be obtained
from the diet to maintain optimal health and function. They include vitamins, minerals, and other substances necessary
for growth, maintenance, and energy production. The other options are incorrect because toxic compounds provide no
nutritional value, substances synthesized by the body are not essential, and chemicals with no impact on energy
production are not typically considered essential nutrients.
QUESTION 2
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, What is the primary purpose of adding nutrients to foods?
A) To preserve the food's natural flavor
B) To enhance the food's aesthetic appeal
C) To fortify the food with essential vitamins and minerals
D) To extend the food's shelf life
CORRECT ANSWER
C) To fortify the food with essential vitamins and minerals
RATIONALE: The primary purpose of adding nutrients to foods, also known as fortification, is to enhance the nutritional
value of the food product. This is particularly important for staple foods, such as grains, bread, and cereals, which may
not provide adequate essential micronutrients. Fortification helps to prevent deficiencies and promote public health.
QUESTION 3
A candidate should identify that enriched grains are typically fortified with which essential nutrients
to ensure a balanced diet for consumers.
A) Thiamin, riboflavin, and folic acid, but not niacin
B) Niacin, iron, and thiamin, but not folic acid
C) Thiamin, riboflavin, niacin, iron, and folic acid
D) Vitamin D, calcium, and potassium
CORRECT ANSWER
C) Thiamin, riboflavin, niacin, iron, and folic acid
RATIONALE: Enriched grains are fortified with thiamin, riboflavin, niacin, iron, and folic acid to address deficiencies in
these essential nutrients, ensuring that consumers receive a balanced diet. Options A and B are incorrect as they omit
one of the necessary nutrients, while option D lists unrelated nutrients.
QUESTION 4
Which of the following is a characteristic of dietary supplements?
A) Food sources that provide macronutrients
B) Concentrates or extracts of plants-derived substances
C) A component of the standard American diet
D) Essential fatty acids obtained from animal products
CORRECT ANSWER
B) Concentrates or extracts of plants-derived substances
RATIONALE: Dietary supplements contain one or more of the following: vitamins, minerals, plants-derived substances,
amino acids, or concentrates or extracts. This characteristic distinguishes dietary supplements from food sources that
provide macronutrients (A), components of the standard American diet (C), and essential fatty acids obtained from
animal products (D).
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, QUESTION 5
What is the difference between essential nutrients and non-essential ones in human nutrition?
A) Essential nutrients provide energy, while non-essential ones maintain body temperature.
B) Essential nutrients are found only in animal products, whereas non-essential ones are in plants.
C) Essential nutrients, such as carbohydrates, proteins, and fats, are required in large amounts daily,
whereas non-essential ones are not.
D) Essential nutrients are necessary for growth and development, whereas non-essential ones support
immune function.
CORRECT ANSWER
C) Essential nutrients, such as carbohydrates, proteins, and fats, are required in large amounts daily,
whereas non-essential ones are not.
RATIONALE: Essential nutrients, including carbohydrates, proteins, and fats, are required in large amounts daily to
sustain human life. Non-essential nutrients, while still important, do not require as much intake. This distinction is
crucial in understanding human nutrition and making informed dietary decisions.
QUESTION 6
Which of the following is an example of a micronutrient that plays a crucial role in maintaining various
bodily functions?
A) Carbohydrates
B) Fiber
C) Vitamins and minerals
D) Fatty acids
CORRECT ANSWER
C) Vitamins and minerals
RATIONALE: Vitamins and minerals, such as iron, are essential micronutrients that facilitate various bodily processes,
including energy production, nerve transmission, and immune function. Options A and B are incorrect as they are
macronutrients, and option D is a type of macronutrient.
QUESTION 7
A professional should recognize that nutrient density is a measure of a food's micronutrient
contribution relative to its caloric content.
A) Nutrient density is the total amount of micronutrients present in a food.
B) It is a measure of the caloric content of a food compared to its macronutrient composition.
C) A food's nutrient density is unrelated to its caloric or energy content.
D) Nutrient density refers to the rate at which a food is metabolized by the body.
CORRECT ANSWER
A) Nutrient density is the total amount of micronutrients present in a food.
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