Nursing Elites

1. Which of the following is an example of a nonpolar solvent?

• A. Water
• B. Ethanol
• C. Acetone
• D. Hydrochloric acid

Correct answer: B

Rationale: - Water (option A) is a polar solvent due to its uneven distribution of charge, with the oxygen atom being partially negative and the hydrogen atoms being partially positive. - Ethanol (option B) is a nonpolar solvent because it has a symmetrical molecular structure that does not result in significant charge separation. - Acetone (option C) is a polar solvent as it contains a carbonyl group that results in a partial negative charge on the oxygen atom. - Hydrochloric acid (option D) is a polar solvent due to the presence of the highly electronegative chlorine atom, which results in a partial negative charge.

2. Which of the following occurred first in Alexander Graham Bell's life?

• A. Helped found the National Geographic Society.
• B. Developed a metal detector.
• C. Moved to Canada.
• D. Invented the telephone.

Correct answer: C

Rationale: Alexander Graham Bell moved to Canada early in his life, before inventing the telephone and developing other technologies. Choice A is incorrect because Bell did not help found the National Geographic Society; this happened years after his major inventions. Choice B is incorrect because Bell developed a metal detector after inventing the telephone. Choice D is incorrect because Bell invented the telephone after moving to Canada.

3. What is the instructor's main purpose in writing this email to his students?

• A. To criticize students for their poor performance on the recent essay exam
• B. To motivate students to persevere despite setbacks
• C. To offer students a chance to improve their scores and avoid failing the course
• D. To acknowledge the difficulty of the essay exam for most students

Correct answer: C

Rationale: The instructor's main purpose in writing the email is to provide students with opportunities to improve their scores and avoid failing the course. The email outlines different options for extra credit projects that can help students make up for the low scores they received on the essay exam. This shows that the instructor is focused on helping students succeed rather than criticizing them (choice A), motivating them (choice B), or acknowledging the difficulty of the exam (choice D).

4. Through which structure do the kidneys reabsorb water, salts, and nutrients and return them to the body?

• A. Renal artery
• B. Renal vein
• C. Nephron
• D. Glomerulus

Correct answer: C

Rationale: The question has been corrected to specify the structure responsible for reabsorbing water, salts, and nutrients in the kidneys. The correct answer is the nephron, which is the functional unit of the kidney that performs filtration and reabsorption processes. The renal artery brings blood into the kidney for filtration, the renal vein carries filtered blood away from the kidney, and the glomerulus is a part of the nephron where filtration occurs. Therefore, the nephron is the structure that reabsorbs substances and returns them to the body.

5. The following words share a common Greek-based suffix: anthropology, biology, cosmetology, etymology, and genealogy. What is the most likely meaning of the suffix -logy?

• A. Record
• B. Study
• C. Science
• D. Technique

Correct answer: B

Rationale: The correct answer is B: 'Study.' The suffix -logy is derived from the Greek word 'logia,' meaning 'the study of.' In words like anthropology (study of humans), biology (study of life), cosmetology (study of cosmetics), etymology (study of word origins), and genealogy (study of family history), the suffix -logy indicates a field of study or discipline. Choices A, C, and D are incorrect because the suffix -logy does not signify 'record,' 'science,' or 'technique,' but rather the concept of 'study' or 'science of.'

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