Nursing Elites

1. An atom has 17 protons, 20 neutrons, and 17 electrons. What is its mass, in amu?

• A. 17
• B. 20
• C. 37
• D. 54

Correct answer: C

Rationale: The atomic mass of an atom is the sum of the protons and neutrons in its nucleus. In this case, the atom has 17 protons and 20 neutrons, totaling 37 particles in the nucleus. Electrons are not considered in the atomic mass calculation as their mass is negligible compared to protons and neutrons. Therefore, the mass of the atom in atomic mass units (amu) is 37.

2. Why are italics used in the sentence, 'Although Ben said he supported his coworkers, his actions suggested he did not condone their behavior'?

• A. to show a word is intentionally misspelled
• B. to indicate a word in a foreign language
• C. to emphasize a contrast
• D. to reference a footnote

Correct answer: C

Rationale: Italics are often used in writing to draw attention to specific words or phrases, especially in cases where there is a contrast or emphasis intended. In this sentence, the use of italics on 'supported' and 'condone' helps highlight the contradiction between Ben's words and actions, emphasizing the contrast between what he said and what he actually did. Choice A is incorrect because italics are not used to indicate intentional misspellings in this context. Choice B is incorrect as italics are not used to indicate foreign words in this sentence. Choice D is incorrect as there is no mention of footnotes in the sentence.

3. Which of the following is equal to 0.13 inches?

• A. 0.013 inches
• B. 1.3 inches
• C. 0.13 inches
• D. 13 inches

Correct answer: C

Rationale: The correct answer is C: 0.13 inches. When converting decimals to inches, the value remains the same. Choice A, 0.013 inches, represents a smaller value than 0.13 inches as it has an extra zero. Choice B, 1.3 inches, is incorrect as it is a larger value than 0.13 inches. Choice D, 13 inches, is significantly larger than 0.13 inches, making it an incorrect conversion.

4. What is the 'lock-and-key' model?

• A. Protein folding
• B. Enzyme-substrate interaction
• C. Muscle contraction
• D. Blood clotting

Correct answer: B

Rationale: The 'lock-and-key' model describes the specificity of the interaction between enzymes and their substrates. In this model, the enzyme's active site acts like a lock that can only be opened by the specific substrate molecule, which serves as the key. This specific binding ensures that enzymes catalyze particular reactions and do not interact with other molecules indiscriminately. Protein folding (option A) is the process by which a protein attains its functional three-dimensional structure but is not directly related to the lock-and-key model. Muscle contraction (option C) and blood clotting (option D) are complex biological processes but are not directly associated with the lock-and-key model of enzyme-substrate interaction.

5. Which of the following statements best summarizes the central purpose of this text?

• A. Gulliver details his experiences and interactions with the natives of the new land.
• B. Gulliver observes the unique customs and traditions of the society he encounters.
• C. Gulliver becomes acquainted with the people and practices of his new surroundings.
• D. Gulliver reflects on the cultural differences between his homeland and the new land.

Correct answer: C

Rationale: The correct answer is C because the text describes how Gulliver becomes familiar with the customs and practices of the new society he finds himself in. He interacts with the natives, learns their language, and participates in their shows, indicating his growing understanding and acceptance of the new culture. Choice A is incorrect because the text goes beyond detailing his experiences to focus on his growing familiarity with the society. Choice B is incorrect because Gulliver not only observes but actively engages with the customs. Choice D is incorrect as the focus is on Gulliver's adaptation rather than reflecting on cultural differences.

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