Nursing Elites

1. Which of the following body systems controls fluid loss, protects deep tissues, and synthesizes vitamin D?

• A. The skeletal system
• B. The muscular system
• C. The lymphatic system
• D. The integumentary system

Correct answer: D

Rationale: The integumentary system is responsible for controlling fluid loss through sweat, protecting deep tissues as the body's first line of defense, and synthesizing vitamin D when exposed to sunlight. The skin, hair, nails, and associated glands make up the integumentary system, which plays a crucial role in maintaining homeostasis and overall health. The skeletal system (Choice A) provides structural support and protection for internal organs but does not directly control fluid loss, protect deep tissues, or synthesize vitamin D. The muscular system (Choice B) is responsible for movement and stability but is not involved in the functions described. The lymphatic system (Choice C) is primarily responsible for immunity and fluid balance, not the specific functions mentioned in the question.

2. Which of the following examples is a simple sentence?

• A. The man who wore a checked tie.
• B. The man with the checked tie.
• C. The man in the blue pin-striped suit and checked tie looked somewhat out of place at the party.
• D. The man in the blue pin-striped suit looked out of place because of his checked tie.

Correct answer: C

Rationale: The correct answer is sentence C because it is a simple sentence containing only one independent clause. It expresses a complete thought with a subject 'The man in the blue pin-striped suit and checked tie' and a predicate 'looked somewhat out of place at the party.' Choices A, B, and D are not simple sentences. Choice A is a dependent clause as it does not express a complete thought on its own. Choice B is a prepositional phrase and does not form a complete sentence. Choice D is a complex sentence with a dependent clause ('because of his checked tie') along with the independent clause.

3. How many amino acids can make up a protein?

• A. 10-20
• B. 50-100
• C. 100-500
• D. 1000+

Correct answer: A

Rationale: Proteins are made up of long chains of amino acids, and there are 20 standard amino acids commonly found in proteins. The sequence and arrangement of these amino acids determine the structure and function of a protein. While proteins can vary in size and complexity, the number of amino acids typically ranges from around 10 to 20 in smaller proteins to hundreds or even thousands in larger proteins. Therefore, the range of 10-20 amino acids is the most accurate representation of the number of amino acids that can make up a protein. Choices B, C, and D are incorrect as they provide ranges that are beyond the typical number of amino acids found in proteins and may lead to confusion. The correct answer is A (10-20).

4. What element is responsible for the green color of leaves?

• A. Magnesium
• B. Iron
• C. Copper
• D. Zinc

Correct answer: A

Rationale: Magnesium is the correct answer. It is essential for the formation of chlorophyll, the green pigment in plants that is crucial for photosynthesis. Chlorophyll absorbs sunlight and uses its energy to convert carbon dioxide and water into glucose and oxygen. Iron, copper, and zinc do not play a direct role in the green color of leaves. Iron is more related to processes like electron transport, copper is involved in enzyme functions, and zinc contributes to the synthesis of plant growth regulators.

5. Which of the following quotes offers the best summary for the instructor's motive in sending the email to the students?

• A. By now, many of you have probably seen your grade and are a little concerned. (And if you're not concerned, you should be-at least a bit!)
• B. With each class comes a new challenge, however, and as any good instructor will tell you, sometimes the original plan has to change.
• C. The purpose of the group project is to allow students to work together and arrive at a stronger response than if each worked individually.
• D. At the beginning of the semester, I informed the class that I have a strict grading policy and that all scores will stand unquestioned.

Correct answer: B

Rationale: The correct answer is B. This quote best captures the instructor's motive in the email to adjust the original plan to better support the students. Dr. Edwards is offering alternative options, including extra credit projects and a group project, to help students improve their scores after the essay exam. These options aim to provide students with opportunities to enhance their grades and succeed in the course. Choice A focuses on students feeling concerned about their grades but does not address the instructor's motive. Choice C highlights the purpose of the group project but does not capture the instructor's motive for sending the email. Choice D emphasizes the instructor's strict grading policy but does not explain the motive behind offering alternative ways to improve scores.

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