Nokea
Which of the following nutrients deficiency may lead to a diabetes-like condition?
- A. chromium
- B. iron
- C. molybdenum
- D. selenium
Correct Answer: A
Rationale: Chromium is essential for proper glucose metabolism. A deficiency in chromium can result in insulin resistance, which shares similarities with diabetes. Iron, molybdenum, and selenium deficiencies do not directly lead to a diabetes-like condition. Iron deficiency causes anemia, molybdenum deficiency is rare and can lead to specific metabolic issues, and selenium deficiency may result in thyroid problems but not a diabetes-like condition.
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Which dietary recommendation is most appropriate for a patient with gout?
- A. Increase protein intake
- B. Reduce carbohydrate intake
- C. Avoid purine-rich foods
- D. Increase calcium intake
Correct Answer: C
Rationale: The most appropriate dietary recommendation for a patient with gout is to avoid purine-rich foods. Purine-rich foods such as red meat and shellfish can lead to increased uric acid levels in the body, triggering gout flare-ups. Increasing protein intake (Choice A) is not recommended as some high-protein foods are also high in purines. Reducing carbohydrate intake (Choice B) and increasing calcium intake (Choice D) are not directly related to managing gout symptoms.
Each is a characteristic manifestation of necrotizing ulcerative gingivitis (NUG), except one. Which is the exception?
- A. Gingival erythema
- B. Necrosis of interdental papilla
- C. Marasmus
- D. Metallic taste and foul odor
Correct Answer: C
Rationale: The correct answer is C: Marasmus. Marasmus is a form of severe malnutrition and is not a direct manifestation of necrotizing ulcerative gingivitis (NUG). Choices A, B, and D are all characteristic manifestations of NUG. Gingival erythema, necrosis of interdental papilla, and metallic taste with foul odor are commonly associated with NUG due to the inflammatory and necrotic nature of the condition.
What are the potential consequences of damage to the stomach?
- A. Reduced digestion of carbohydrates
- B. Inability to produce or secrete bile
- C. Inability to produce or secrete gastric acid
- D. Increased ability to produce or secrete intrinsic factor
Correct Answer: C
Rationale: Damage to the stomach can lead to a reduced ability to produce gastric acid (Choice C) and intrinsic factor, the latter of which is crucial for vitamin B12 absorption (Choice D). That's why these two choices are correct. The stomach doesn't play a direct role in the digestion of carbohydrates (Choice A) as this process primarily occurs in the small intestine with the help of pancreatic enzymes. Similarly, bile is produced by the liver and stored in the gallbladder, not the stomach, hence stomach damage wouldn't lead to an inability to produce or secrete bile (Choice B).
Compared to the typical American diet, what does the DASH diet provide more of?
- A. More saturated fats
- B. Fewer whole grains
- C. More fruits and vegetables
- D. Fewer dairy products
Correct Answer: C
Rationale: The correct answer is C. The DASH diet, which stands for Dietary Approaches to Stop Hypertension, emphasizes the consumption of fruits and vegetables, which are high in potassium, fiber, and antioxidants. These nutrients help lower blood pressure. Therefore, compared to the typical American diet, the DASH diet provides more fruits and vegetables. Choices A, B, and D are incorrect. The DASH diet doesn't focus on providing more saturated fats or fewer whole grains or dairy products. In fact, it encourages the consumption of whole grains and low-fat dairy products to promote a balanced and healthy diet.
Which biomolecule is responsible for the storage and transfer of genetic information?
- A. Carbohydrates
- B. Proteins
- C. Lipids
- D. Nucleic acids
Correct Answer: D
Rationale: Nucleic acids, such as DNA and RNA, are the biomolecules responsible for storing and transferring genetic information within cells. Carbohydrates, proteins, and lipids do not have this specific function. Carbohydrates are mainly used for energy storage, structural support, and cellular communication. Proteins are involved in various cellular functions such as enzymatic reactions, structural support, and signaling. Lipids play roles in energy storage, cell membrane structure, and signaling.