A dietitian tells you that you are not consuming enough calories. Which of the following nutrients could you add to your diet to increase your energy intake?
- A. fiber
- B. water
- C. protein
- D. vitamins
Correct Answer: C
Rationale: Corrected Rationale: Protein provides 4 kcal per gram, making it a good source of energy to increase caloric intake. While fiber and water are important for other aspects of health, they do not provide energy like protein does. Vitamins are essential for various bodily functions but do not contribute directly to caloric intake.
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Cyanocobalamin is a form of which vitamin?
- A. Vitamin B1
- B. Vitamin B2
- C. Vitamin B3
- D. Vitamin B12
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
_____ neutralizes stomach acid in the small intestine:
- A. saliva
- B. gastric mucus
- C. bicarbonate ions
- D. enzymes
Correct Answer: C
Rationale: The correct answer is C: bicarbonate ions. Bicarbonate ions, secreted by the pancreas, neutralize the acidic chyme entering the small intestine from the stomach, creating a more suitable environment for digestive enzymes. Saliva (choice A) helps in the initial breakdown of food in the mouth, not in neutralizing stomach acid. Gastric mucus (choice B) protects the stomach lining from the acidic environment but does not neutralize the acid in the small intestine. Enzymes (choice D) facilitate chemical reactions in digestion but do not neutralize stomach acid.
During nutritional counseling, what is the most important step to take?
- A. Consult the patient's family
- B. Formulate a sample diet plan before presenting it to the patient
- C. Include members of the dental team in the dietary formulation
- D. Include the patient in the formulation of the dietary plan
Correct Answer: D
Rationale: During nutritional counseling, the most important step is to include the patient in the formulation of the dietary plan. This ensures their active involvement, understanding, and commitment to the plan, leading to better compliance and success in achieving nutritional goals. Consulting the patient's family (Choice A) may be helpful but should not replace involving the patient directly. Formulating a sample diet plan before presenting it to the patient (Choice B) may not align with the patient's preferences or needs. Including members of the dental team in the dietary formulation (Choice C) may not be necessary unless specific dental concerns need to be addressed.
Which enzyme digests fiber in the large intestine?
- A. salivary amylase
- B. pancreatic amylase
- C. cellulase
- D. none of the above
Correct Answer: D
Rationale: The correct answer is 'none of the above.' Human digestive enzymes like salivary amylase and pancreatic amylase cannot digest fiber. Instead, fiber is fermented by gut bacteria in the large intestine. Cellulase, which is an enzyme produced by some animals and microorganisms, can break down cellulose found in plants, but it is not a human digestive enzyme, making it an incorrect choice in this context.
Which mineral-containing amino acids help to form the shape of proteins?
- A. phosphorus
- B. sulfur
- C. selenium
- D. iron
Correct Answer: B
Rationale: The correct answer is B: sulfur. Sulfur-containing amino acids like cysteine and methionine play a crucial role in forming disulfide bonds within proteins. These bonds are essential for the proper folding and structural stability of proteins. Phosphorus (choice A), selenium (choice C), and iron (choice D) do not directly contribute to shaping proteins through bond formation.