Nokea
Which age group is particularly vulnerable to malnutrition?
- A. Infants
- B. Teenagers
- C. Young adults
- D. Middle-aged adults
Correct Answer: A
Rationale: Infants are particularly vulnerable to malnutrition due to their high growth rate and specific nutrient requirements. During the first year of life, infants experience rapid growth and development, requiring essential nutrients for proper physical and cognitive development. Teenagers, young adults, and middle-aged adults have more stable nutritional needs compared to infants, making them less vulnerable to malnutrition. Therefore, infants are the most susceptible age group when it comes to malnutrition.
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Dietary guidelines are most useful for:
- A. limiting portion sizes.
- B. designing a personal food plan.
- C. making smart food choices.
- D. avoiding excessive nutrient intakes.
Correct Answer: C
Rationale: Dietary guidelines are designed to assist individuals in making smart food choices by providing recommendations on what to eat to maintain good health. While portion sizes may be a part of these guidelines, they are not the primary focus. Designing a personal food plan involves individual preferences and needs, which may go beyond general guidelines. Avoiding excessive nutrient intakes is important, but dietary guidelines aim to provide balanced recommendations rather than just focusing on avoiding excess.
An example of government nutrition policy is:
- A. MyPlate Food Guidance System.
- B. Dietary Guidelines for Americans 2010.
- C. Healthy People 2020.
- D. Dietary Reference Intakes (DRIs).
Correct Answer: C
Rationale: The correct answer is C: Healthy People 2020. Healthy People 2020 is a government initiative that sets goals for improving the health of Americans, including specific nutritional objectives. Choices A, B, and D are not examples of government nutrition policies. MyPlate Food Guidance System is a visual tool to help individuals make healthy food choices, Dietary Guidelines for Americans 2010 provide evidence-based advice for Americans two years and older, and Dietary Reference Intakes (DRIs) are a set of nutrient reference values.
The Dietary Guidelines are published and revised by the U.S. Department of Agriculture in association with the:
- A. Department of Health and Human Services.
- B. National Institutes of Health.
- C. National Academy of Sciences.
- D. Food and Nutrition Board.
Correct Answer: A
Rationale: The correct answer is A. The U.S. Department of Agriculture collaborates with the Department of Health and Human Services to publish and revise the Dietary Guidelines for Americans. This collaboration ensures that the guidelines encompass both agricultural and health aspects. Choices B, C, and D are incorrect as they are not directly involved in the publication and revision of the Dietary Guidelines. The National Institutes of Health focuses on medical research, the National Academy of Sciences provides independent scientific advice, and the Food and Nutrition Board is a part of the National Academies of Sciences, Engineering, and Medicine.
Which of the following are macronutrients?
- A. Minerals.
- B. Proteins.
- C. Vitamins.
- D. Enzymes.
Correct Answer: B
Rationale: Proteins are indeed macronutrients, along with carbohydrates and fats. Macronutrients are nutrients that provide energy and are required in large amounts by the body. Minerals and vitamins are considered micronutrients, as they are needed in smaller quantities. Enzymes, on the other hand, are not nutrients but rather biological molecules that act as catalysts in biochemical reactions.
What is the primary function of carbohydrates as a food source?
- A. Regulate metabolic processes.
- B. Build body tissue.
- C. Supply energy.
- D. Provide bulk.
Correct Answer: C
Rationale: The primary function of carbohydrates as a food source is to supply energy. Carbohydrates are the body's main source of energy, providing fuel for various physiological functions. Choice A is incorrect because carbohydrates do not primarily regulate metabolic processes; that role is mainly attributed to enzymes and hormones. Choice B is incorrect because proteins are primarily responsible for building body tissue. Choice D is incorrect because fiber, not all carbohydrates, provides bulk in the diet.