Nokea
Select all that apply. Which of the following are true about protein digestion?
- A. the end products of protein digestion are amino acids
- B. protein/polypeptides are digested in the large intestine by trypsin
- C. A, D
- D. protein/polypeptides are digested in the stomach by pepsin
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
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Begins carb digestion in the mouth:
- A. pepsin
- B. salivary amylase
- C. CCK
- D. secretin
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
During which stage of life is it most critical to build bone mass to prevent osteoporosis?
- A. Infancy
- B. Early childhood
- C. Adolescence
- D. Young adulthood
Correct Answer: C
Rationale: Adolescence is the most critical stage for building bone mass, which plays a significant role in preventing osteoporosis in later life. During adolescence, approximately 45% of adult bone mass is formed. Although bone mass can be built during infancy, early childhood, and young adulthood, it is not as significant as during adolescence, making choices A, B, and D incorrect. Therefore, focusing on adequate nutrition and physical activity during adolescence is vital for long-term bone health.
What is the procedure called when direct observations are used to generate an estimate of a client's current food intake?
- A. Food diary
- B. 24-hour recall
- C. Kilocalorie count
- D. Nutrient surveillance record
Correct Answer: C
Rationale: A kilocalorie count is the correct answer as it involves directly observing a client's food intake, which is often used in hospitals to accurately assess nutritional intake and ensure it meets dietary requirements. A food diary (Choice A) is typically self-reported by the client and not directly observed. A 24-hour recall (Choice B) is also usually self-reported and relies on a client's memory of the past 24 hours, which can be unreliable. A nutrient surveillance record (Choice D) is a broader term for tracking nutrient intake in a population and is not specific to the direct observation of an individual's food intake.
What is the digestive action of bile?
- A. It breaks down carbohydrates
- B. It breaks down proteins
- C. It breaks down lipids
- D. It aids in fat digestion
Correct Answer: D
Rationale: Bile, which is produced by the liver and stored in the gallbladder, aids in the digestion of fats. It does this by emulsifying the fats, which makes them easier for the digestive enzymes, such as lipase, to break down. While choices A, B, and C could be seen as partially correct since fats are a type of lipid and the process of breaking down fats could be seen as breaking down lipids, the most accurate answer is D, as the primary function of bile is to aid in fat digestion, not the digestion of all types of lipids or the digestion of proteins or carbohydrates.
Which organ absorbs water and vitamin K and may be affected by ulcerative colitis?
- A. Stomach
- B. Pancreas
- C. Large intestine
- D. Small intestine
Correct Answer: C
Rationale: The large intestine is the organ that is primarily responsible for the absorption of water and vitamin K in the human body. A disease like ulcerative colitis can disrupt these functions by causing inflammation and ulcers in the lining of the large intestine, leading to digestive issues. The stomach (Choice A) primarily functions to break down and digest food, not to absorb water and vitamins. The pancreas (Choice B) secretes enzymes to aid in digestion and hormones to regulate blood sugar, but does not absorb water and vitamins. The small intestine (Choice D) is primarily responsible for absorbing nutrients from digested food, but not specifically water and vitamin K. Therefore, these other choices are incorrect.