Which lipid contains 3 fatty acids?
- A. cholesterol
- B. phospholipid
- C. saturated
- D. triglyceride
Correct Answer: D
Rationale: The correct answer is 'D. triglyceride.' Triglycerides are composed of one glycerol molecule and three fatty acids, making them the primary form of stored fat in the body. Cholesterol (A) is a different type of lipid, phospholipids (B) have two fatty acids, and 'saturated' (C) refers to the structure of fatty acids, not a specific lipid containing 3 fatty acids.
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Proteolytic enzymes are most likely to break down which food type?
- A. Carbohydrates
- B. Proteins
- C. Fats
- D. Lipids
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is the desirable resting systolic blood pressure for adults?
- A. <130 mmHg>
- B. <105 mmHg>
- C. <120 mmHg>
- D. <140 mmHg>
Correct Answer: C
Rationale: The desirable resting systolic blood pressure for adults is less than 120 mmHg. This blood pressure is associated with a lower risk of cardiovascular disease. Measurements higher than 120 mmHg (choices A and D) indicate elevated blood pressure, which can lead to hypertension and other health complications if not managed. A reading of less than 105 mmHg (choice B) could indicate low blood pressure, which also poses health risks such as dizziness and fainting.
Given that orthodontic patients are frequently adolescents, their nutrition and oral self-care are often subpar. A dental hygienist may successfully motivate these noncompliant patients by emphasizing that optimal nutrition and oral self-care can enhance their appearance. Is this true or false?
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true; the second is false
- D. The first statement is false; the second is true
Correct Answer: A
Rationale: Both statements are indeed true. Many adolescents undergoing orthodontic treatment often neglect proper nutrition and oral hygiene, leading to subpar practices in these areas. It's common for them to be less attentive to these aspects due to various factors. A dental hygienist's role includes motivating these patients towards better self-care practices. One effective approach is by emphasizing that good nutrition and oral hygiene can significantly enhance their appearance. This approach is particularly effective for adolescents as they are often highly conscious about their looks. The other choices are incorrect because they suggest that one or both of the statements are false, which is not the case.
Because of increasing cases of fluorosis, low levels of fluoride are added to commercial infant formula. Breast milk provides low levels of fluoride.
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true; the second is false
- D. The first statement is false; the second is true
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is the term for a condition where one or more members of a household, including children, consistently have little or no food due to lack of money?
- A. Marginal Food Security
- B. Food Desert
- C. Very Low Food Security
- D. Food Insecurity
Correct Answer: D
Rationale: The correct answer is 'D: Food Insecurity'. This term specifically describes a situation where household members consistently have inadequate access to food due to financial constraints. 'Marginal Food Security' (Choice A) refers to a situation where the quality or variety of food is reduced, but there is no significant decrease in food intake. A 'Food Desert' (Choice B) is an area with limited access to affordable and nutritious food. 'Very Low Food Security' (Choice C) is a term used to describe a severe level of food insecurity where eating patterns of household members are disrupted and food intake is reduced.