Nursing Elites

1. Which word is used incorrectly in the following sentence? If you calculate too quickly, you may possibly fail to get the right answer.

• A. calculate
• B. quickly
• C. possibly
• D. right

Correct answer: B

Rationale: The word 'quickly' is used incorrectly in the sentence. The correct word that should be used here is 'speedily.' 'Quickly' is an adverb that describes the speed at which an action is performed. However, in this context, the sentence needs an adverb that conveys doing something in a hurried or rushed manner, which is 'speedily.' Therefore, the sentence should read as: 'If you calculate too speedily, you may possibly fail to get the right answer.' The other choices ('calculate,' 'possibly,' 'right') are used appropriately in the sentence and do not need to be changed.

2. What is the role of enzymes in the body?

• A. To produce energy
• B. To speed up chemical reactions
• C. To transport molecules
• D. To repair tissues

Correct answer: B

Rationale: Enzymes are biological catalysts that facilitate and speed up chemical reactions in the body. They do not produce energy but enable various processes such as digestion and metabolism by lowering the activation energy required for reactions to occur. Choice A is incorrect because enzymes do not produce energy themselves but assist in energy production through reactions. Choice C is incorrect as enzymes do not primarily function in transporting molecules, although some may have a role in specific transport processes. Choice D is incorrect as the primary role of enzymes is not to repair tissues, but rather to catalyze biochemical reactions.

3. What is the result of subtracting 4.7 from 9.5?

• A. 4.8
• B. 4.9
• C. 4.6
• D. 4.7

Correct answer: A

Rationale: The correct subtraction is 9.5 - 4.7 = 4.8. Therefore, the correct answer is 4.8. Choice B (4.9) is incorrect because 9.5 - 4.7 is not equal to 4.9. Choice C (4.6) is incorrect as it is not the result of subtracting 4.7 from 9.5. Choice D (4.7) is the number being subtracted and not the result of the subtraction.

4. What is the correct electron configuration for magnesium?

• A. 1s² 2s²
• B. 1s² 2s² 2p⁶
• C. 1s² 2s² 2p⁶ 3s²
• D. 1s² 2s² 2p⁶ 3s² 3p¹

Correct answer: C

Rationale: The electron configuration of an element is determined by following the Aufbau principle, which states that electrons fill orbitals starting from the lowest energy level. Magnesium has an atomic number of 12, meaning it has 12 electrons. The electron configuration of magnesium fills the 1s, 2s, 2p, and 3s orbitals to accommodate all 12 electrons. Therefore, the correct electron configuration for magnesium is 1s² 2s² 2p⁶ 3s². Choice A is incorrect as it only includes 4 electrons and stops at the 2s orbital. Choice B is incorrect as it includes 8 electrons and stops at the 2p orbital. Choice D is incorrect as it includes 13 electrons and extends to the 3p orbital, which is beyond the actual electron configuration of magnesium.

5. What is the best description for the term Aseptic?

• A. Sterilized
• B. Purified
• C. Contaminated
• D. Polluted

Correct answer: B

Rationale: The correct answer is B: 'Purified.' Aseptic means free from contamination or sterile. While 'Sterilized' (choice A) is related to the elimination of all microorganisms, aseptic goes beyond sterilization to ensure freedom from contamination in a broader sense. 'Contaminated' (choice C) and 'Polluted' (choice D) are incorrect as they mean the opposite of aseptic, implying the presence of unwanted or harmful substances.

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