Nokea
What is the primary function of protein in the body?
- A. Provide energy.
- B. Regulate metabolic processes.
- C. Control muscle contractions.
- D. Build tissue.
Correct Answer: D
Rationale: The primary function of protein in the body is to build and repair tissues. Proteins are crucial for growth, maintenance, and repair of body tissues, including muscles, organs, and skin. While proteins can be a source of energy, their primary role is not to supply energy. Regulating metabolic processes and controlling muscle contractions are functions typically attributed to other nutrients and compounds in the body, such as vitamins and minerals.
You may also like to solve these questions
For a healthy person, what percentage of daily calories should be supplied by protein?
- A. 5% to 10%.
- B. 10% to 35%.
- C. more than 25%.
- D. more than 35%.
Correct Answer: B
Rationale: The correct answer is B: 10% to 35%. For a healthy person, it is recommended that 10% to 35% of their daily caloric intake should come from protein. This range ensures an adequate intake of protein for various bodily functions without overdoing it. Choices A, C, and D are incorrect because they suggest percentages either below the recommended range (A, C) or exceeding it (D), which could lead to nutritional imbalances or health issues.
What is one useful outcome of keeping a record of everything you eat and drink for a day?
- A. Precise estimates of portion sizes.
- B. Determination of appropriate energy intake.
- C. Estimation of supplement needs.
- D. Increased awareness of personal food patterns.
Correct Answer: D
Rationale: The correct answer is D: Increased awareness of personal food patterns. Keeping a food record is beneficial as it helps individuals become more mindful of their eating habits and food choices. This awareness can lead to identifying patterns, triggers, and areas for improvement in one's diet. Choices A, B, and C are incorrect because the primary benefit of keeping a food record is not about precise estimates of portion sizes, determining energy intake, or estimating supplement needs, but rather about developing a deeper understanding of personal food patterns.
In addition to calcium, the major minerals needed to build and maintain bone tissue include:
- A. potassium
- B. iron
- C. phosphorus
- D. fluoride
Correct Answer: C
Rationale: The correct answer is C: phosphorus. Phosphorus, along with calcium, is essential for bone health and maintenance. Potassium (choice A) is important for muscle function, iron (choice B) is crucial for red blood cell production, and fluoride (choice D) helps prevent tooth decay but is not a major mineral needed for bone tissue.
Nutrients interact in the body to regulate metabolic processes, build and repair tissue, and to:
- A. provide energy.
- B. control cellular wastes.
- C. control hormone levels.
- D. regulate absorption.
Correct Answer: A
Rationale: The correct answer is A: provide energy. Nutrients play a crucial role in providing energy for the body's various functions. While they do help in regulating metabolic processes and in building and repairing tissue, the primary function related to energy production. Choices B, C, and D are incorrect as nutrients are not primarily responsible for controlling cellular wastes, hormone levels, or absorption.
How many kilocalories are provided by 15 grams of protein?
- A. 15
- B. 45
- C. 60
- D. 135
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.