Nursing Elites

1. Which phase of metabolism makes growth and repair possible?

• A. digestion
• B. catabolism
• C. anabolism
• D. ketosis

Correct answer: C

Rationale: Anabolism is the phase of metabolism responsible for building up and repairing tissues in the body. It involves processes that require energy to synthesize complex molecules from simpler ones. Digestion (choice A) is the process of breaking down food into simpler substances for absorption. Catabolism (choice B) involves the breakdown of complex molecules into simpler ones with the release of energy. Ketosis (choice D) is a metabolic state where the body uses fat as the primary source of energy, which is not directly related to growth and repair.

2. What is the most prevalent dietary disaccharide?

• A. Lactose
• B. Fructose
• C. Sucrose
• D. Galactose

Correct answer: C

Rationale: Sucrose is the correct answer as it is the most common disaccharide found in the diet, commonly known as table sugar. Lactose is a disaccharide found in dairy products, not as prevalent in the overall diet as sucrose. Fructose is a monosaccharide commonly found in fruits and honey, not a disaccharide. Galactose is a monosaccharide commonly found in dairy products and is not the most prevalent dietary disaccharide.

3. Which chain length of fatty acids is most water-soluble and easily absorbed into the bloodstream?

• A. Very long.
• B. Long.
• C. Medium.
• D. Short.

Correct answer: D

Rationale: Short-chain fatty acids are the most water-soluble and are more easily absorbed into the bloodstream. Very long, long, and medium-chain fatty acids are less water-soluble and are absorbed at a slower rate compared to short-chain fatty acids. Therefore, the correct answer is D.

4. Which of the following is an example of a plasma protein?

• A. Collagen.
• B. Myosin.
• C. Albumin.
• D. Phospholipid.

Correct answer: C

Rationale: The correct answer is C, albumin. Albumin is a plasma protein that plays a crucial role in maintaining fluid balance in the blood. Collagen (choice A) is a structural protein found in connective tissues, not a plasma protein. Myosin (choice B) is a protein involved in muscle contraction, not found in the blood plasma. Phospholipid (choice D) is a type of lipid molecule, not a protein present in plasma.

5. At what pH does the digestion of protein by pepsin in the stomach require?

• A. 1.8 and 3.5.
• B. 4.8 and 7.0.
• C. 6.8 and 8.5.
• D. 7.8 and 10.0.

Correct answer: A

Rationale: The correct answer is A: 1.8 and 3.5. Pepsin, an enzyme involved in protein digestion, functions optimally in an acidic environment, specifically between pH 1.8 and 3.5. This low pH is necessary for pepsin to break down proteins effectively. Choices B, C, and D are incorrect because pepsin requires a highly acidic environment, ruling out the pH ranges listed in those options.

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